2.OA.1 – Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. (See Glossary, Table 1. http://www.corestandards.org/the-standards/mathematics/glossary/glossary/ )

• 14 learning outcomes – click to view

  Samples: Adding multiples of 10. Adding two digit numbers (split strategy). Adding on (numbers under 10). 

  • Adding multiples of 10

    • Activities: 3 course, 4 extra

    • • Adding multiples of 10
      • Tutorial
    • • Adding multiples of 10.
      • Practice
    • • Adding multiples of 10
      • Tutorial

    Extra activities

    • • Adding multiples of 10
      • Printable
    • • Adding multiples of 10
      • Tutorial
    • • 
      • Addition problem solving
      • Assessment
    • • 
      • Adding lots of 10
      • Practice

  • Adding two digit numbers (split strategy)

    • Activities: 5 course, 2 extra

    • • Adding two digit numbers (split strategy)
      • Tutorial
    • • Adding two digit numbers (split strategy)
      • Practice
    • • Adding two digit numbers (split strategy)
      • Practice
    • • Adding two digit numbers (split strategy)
      • Tutorial
    • • Adding two digit numbers (split strategy)
      • Tutorial

    Extra activities

    • • How to add using the split strategy
      • Tutorial
    • • Split strategy for addition
      • Practice

  • Adding on (numbers under 10)

    • Activities: 3 course, 14 extra

    • • Adding on (numbers under 10)
      • Tutorial
    • • Adding on (numbers under 10)
      • Practice
    • • Adding on (numbers under 10)
      • Challenge

    Extra activities

    • • Adding on (numbers under 10)
      • Printable
    • • Adding on numbers under 10 (problem solving)
      • Printable
    • • Adding on (numbers under 10)
      • Printable
    • • Add on numbers under 10
      • Tutorial
    • • Adding lots of 100 to numbers less than 1,000
      • Tutorial
    • • 
      • Adding lots of 100 to numbers less than 1,000
      • Assessment
    • • 
      • Add on numbers less than 10
      • Assessment
    • • 
      • Add numbers less than 10 to numbers less than 50
      • Challenge
    • • 
      • Adding lots of 10 to numbers less than 1,000
      • Challenge
    • • 
      • Add lots of 10 - Jump Strategy
      • Practice
    • • 
      • Adding lots of 10 to numbers less than 200
      • Assessment
    • • 
      • Adding lots of 10 to numbers less than 200
      • Challenge
    • • 
      • Adding lots of 10 to numbers less than 1,000
      • Assessment
    • • 
      • Adding lots of 100 to numbers less than 1,000
      • Challenge

  • Adding two digit numbers (jump strategy)

    • Activities: 6 course, 5 extra

    • • Adding two digit numbers (jump strategy)
      • Tutorial
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Tutorial
    • • Adding two digit numbers (jump strategy)
      • Tutorial

    Extra activities

    • • Jump Strategy/Method Explained
      • Tutorial
    • • Jump Strategy/Method
      • Tutorial
    • • Mental strategies in addition - add on numbers up to 20
      • Tutorial
    • • 
      • Addition of two digit numbers
      • Challenge
    • • 
      • Addition of Two Digit Numbers
      • Assessment

  • Adding two digit numbers (written strategy)

    • Activities: 5 course, 8 extra

    • • Adding two digit numbers (written strategy)
      • Tutorial
    • • Adding two digit numbers (written strategy)
      • Practice
    • • Adding two digit numbers (written strategy)
      • Practice
    • • Adding two digit numbers (written strategy) no carrying
      • Tutorial
    • • Adding two digit numbers (written strategy) with carrying
      • Tutorial

    Extra activities

    • • Adding two digit numbers (written strategy)
      • Printable
    • • Adding two digit numbers (written strategy)
      • Printable
    • • Drill - Add on lots of 10 - written strategy
      • Printable
    • • 
      • Drill - Adding two digit numbers - written strategies (Auto-Generated)
      • Printable
    • • 
      • Addition of two digit numbers
      • Practice
    • • 
      • Addition of two digit numbers
      • Practice
    • • 
      • Addition of two digit numbers - without trading
      • Practice
    • • 
      • Addition of two digit numbers
      • Tutorial

  • Adding two digit numbers (problem solving)

    • Activities: 6 course, 12 extra

    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice

    Extra activities

    • • Adding two digit numbers (problem solving)
      • Printable
    • • Adding two digit numbers (problem solving) Answer sheet
      • Printable
    • • 
      • Problem solving using addition
      • Assessment
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Addition of two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Subtraction - two digit numbers
      • Printable
    • • 
      • Addition of two digit numbers
      • Assessment
    • • 
      • Addition using the Jump Strategy/Method
      • Challenge

  • Challenge Puzzle - Addition Pyramid

    • Activities: 1 course, 0 extra

    • • Challenge Puzzle - Addition Pyramid
      • Practice

  • Subtracting 10

    • Activities: 5 course, 11 extra

    • • Subtracting 10
      • Tutorial
    • • Subtract 10
      • Practice
    • • Subtracting 10
      • Tutorial
    • • Subtracting 10
      • Challenge
    • • Subtracting 10
      • Practice

    Extra activities

    • • Subtracting 10
      • Printable
    • • Subtracting 10 (problem solving)
      • Printable
    • • Subtract 10 from numbers under 100
      • Printable
    • • Drill - Subtract 10 from numbers under 50
      • Printable
    • • Subtract 10 from larger numbers
      • Printable
    • • Subtract 10 from numbers
      • Printable
    • • 
      • Subtract 10 from larger numbers
      • Assessment
    • • 
      • Mental strategies - subtract multiples of 10 from numbers up to 200
      • Challenge
    • • 
      • Subtract 10 from larger numbers
      • Challenge
    • • 
      • Subtract 10 from numbers
      • Assessment
    • • 
      • Mental strategies - subtract multiples of 10 from numbers up to 200
      • Assessment

  • Subtracting multiples of 10

    • Activities: 3 course, 5 extra

    • • Subtracting multiples of 10
      • Tutorial
    • • Subtracting multiples of 10
      • Practice
    • • Subtracting multiples of 10
      • Tutorial

    Extra activities

    • • Subtracting multiples of 10
      • Printable
    • • Subtracting multiples of 10
      • Printable
    • • Subtract Multiples Of 10
      • Tutorial
    • • Mental strategies - subtract multiples of 10 from numbers up to 2000
      • Printable
    • • Drill - Subtract multiples of 10 from numbers under 1000
      • Printable

  • Subtracting from 100

    • Activities: 5 course, 5 extra

    • • Subtracting from 100
      • Tutorial
    • • Subtracting from 100
      • Practice
    • • Subtracting from 100
      • Challenge
    • • Subtracting from 100
      • Tutorial
    • • Subtracting from 100
      • Tutorial

    Extra activities

    • • Subtracting from 100
      • Printable
    • • Subtracting from 100
      • Printable
    • • Subtract from 100 - Written Strategy
      • Tutorial
    • • 
      • Subtract from 100
      • Practice
    • • 
      • Subtract from 100
      • Assessment

  • Subtracting two digit numbers (adding on)

    • Activities: 3 course, 0 extra

    • • Subtracting two digit numbers (adding on)
      • Tutorial
    • • Subtracting two digit numbers (adding on)
      • Practice
    • • Subtracting two digit numbers (adding on)
      • Practice

  • Subtracting two digit numbers (jump back strategy)

    • Activities: 5 course, 16 extra

    • • Subtracting (jumping back)
      • Tutorial
    • • Subtracting two digit numbers (jump back strategy)
      • Practice
    • • Subtracting two digit numbers (jump back strategy)
      • Practice
    • • Subtracting two digit numbers (jump back strategy)
      • Tutorial
    • • Subtract single digit numbers from numbers under 100
      • Practice

    Extra activities

    • • 
      • Drill - Subtract single digit numbers from numbers under 100 (Auto-Generated)
      • Printable
    • • Drill - Subtract single digit numbers from numbers under 100
      • Printable
    • • Subtract single digit numbers from numbers less than 100
      • Printable
    • • 
      • Subtracting numbers under 20 from numbers under 100
      • Challenge
    • • 
      • Subtracting numbers under 20 from numbers under 100
      • Assessment
    • • 
      • Subtract single digit numbers from numbers less than 100
      • Assessment
    • • Timed Challenge: Subtract single digit numbers
      • Challenge
    • • 
      • Mental Strategies - Subtraction of numbers under 50
      • Practice
    • • 
      • Subtract 20 from numbers under 100
      • Challenge
    • • 
      • Subtract 20 from numbers under 100
      • Assessment
    • • 
      • Subtract 30 from numbers under 100
      • Challenge
    • • 
      • Subtract 30 from numbers under 100
      • Assessment
    • • 
      • Subtract 40 from numbers under 100
      • Assessment
    • • 
      • Subtract 40 from numbers under 100
      • Challenge
    • • 
      • Subtract 50 from numbers under 100
      • Challenge
    • • 
      • Subtract 50 from numbers under 100
      • Assessment

  • Subtracting two digit numbers (written strategy)

    • Activities: 6 course, 10 extra

    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Practice
    • • Subtracting two digit numbers (written strategy)
      • Practice
    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtraction - two digit numbers - without trading
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Tutorial

    Extra activities

    • • Subtracting two digit numbers (written strategy)
      • Printable
    • • Subtracting two digit numbers (written strategy)
      • Printable
    • • 
      • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtraction of two digit numbers
      • Printable
    • • 
      • Drill - Subtract from 100 - written strategy (Auto-Generated)
      • Printable
    • • Drill - Subtract from 100 - written strategy
      • Printable
    • • 
      • Subtraction - two digit numbers - without trading
      • Practice
    • • 
      • Subtraction - two digit numbers - using blocks
      • Practice
    • • 
      • Subtraction - two digit numbers
      • Practice

  • Subtracting two digit numbers (problem solving)

    • Activities: 5 course, 21 extra

    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice

    Extra activities

    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers
      • Printable
    • • Subtracting two digit numbers
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtract numbers less than 20
      • Printable
    • • Subtracting numbers under 20 from numbers under 100
      • Printable
    • • 
      • Problem solving using addition and subtraction
      • Assessment
    • • Drill - Subtract lots of 10 from numbers under 200
      • Printable
    • • Drill - Subtract numbers up to 100
      • Printable
    • • 
      • Problem solving using subtraction
      • Assessment
    • • 
      • Problem solving using addition and subtraction
      • Assessment
    • • 
      • Subtraction
      • Assessment
    • • 
      • Drill - Subtract numbers up to 100 (Auto-Generated)
      • Printable
    • • 
      • Subtraction - two digit numbers
      • Challenge
    • • 
      • Subtraction of two digit numbers
      • Challenge
    • • 
      • Subtraction of two digit numbers
      • Assessment

2.OA.2 – Fluently add and subtract within 20 using mental strategies. (See standard 1.OA.6 for a list of mental strategies.) By end of Grade 2, know from memory all sums of two one-digit numbers.

• 4 learning outcomes – click to view

  Samples: Adding single digit numbers. Single digit addition (missing number). Subtracting single digit numbers. 

  • Adding single digit numbers

    • Activities: 5 course, 18 extra

    • • Adding single digit numbers
      • Tutorial
    • • Adding single digit numbers
      • Practice
    • • Adding single digit numbers (20 questions)
      • Practice
    • • Adding single digit numbers
      • Challenge
    • • Add numbers less than 5
      • Tutorial

    Extra activities

    • • Adding single digit numbers (problem solving)
      • Printable
    • • Adding single digit numbers
      • Printable
    • • Add doubles - single digit numbers
      • Printable
    • • Adding single digit numbers
      • Printable
    • • Adding single digit numbers
      • Printable
    • • Timed Challenge: Add numbers less than 5
      • Challenge
    • • 
      • Add Single Digits Duck Game
      • Practice
    • • Drill - Add numbers up to 10.
      • Printable
    • • Drill - Doubles to 20
      • Printable
    • • 
      • Drill - Add numbers up to 10 (Auto-Generated)
      • Printable
    • • 
      • Drill - Doubles to 20 (Auto-Generated)
      • Printable
    • • Add single digit numbers
      • Printable
    • • 
      • Add single digit numbers - visual cues
      • Practice
    • • 
      • Add single digit numbers using a number line
      • Practice
    • • 
      • Addition to 20 - with visual cues
      • Practice
    • • 
      • Add numbers less than 5
      • Assessment
    • • 
      • Add single digit numbers
      • Assessment
    • • 
      • Combining to 20
      • Practice

  • Single digit addition (missing number)

    • Activities: 5 course, 10 extra

    • • Single digit addition (missing number)
      • Tutorial
    • • Single digit addition (missing number)
      • Tutorial
    • • Single digit addition (missing number)
      • Tutorial
    • • Single digit addition (missing number)
      • Practice
    • • Single digit addition (missing number)
      • Challenge

    Extra activities

    • • Single digit addition (missing number)
      • Printable
    • • Single digit addition (missing number)
      • Printable
    • • Single digit addition (missing number)
      • Printable
    • • Single digit addition (missing number)
      • Printable
    • • Single digit addition (missing number)
      • Printable
    • • Single digit addition (missing number)
      • Printable
    • • Single Digit Addition with a Missing Number
      • Tutorial
    • • 
      • Drill - Single digit addition with a missing number (Auto-Generated)
      • Printable
    • • 
      • Addition with a missing number
      • Assessment
    • • Single digit addition with a missing number
      • Tutorial

  • Subtracting single digit numbers

    • Activities: 4 course, 12 extra

    • • Subtracting single digit numbers
      • Tutorial
    • • Subtracting single digit numbers
      • Practice
    • • Subtracting single digit numbers (20 questions)
      • Practice
    • • Subtracting single digit numbers
      • Challenge

    Extra activities

    • • Subtract single digit numbers
      • Printable
    • • 
      • Subtraction problem solving
      • Assessment
    • • Subtract single digit numbers
      • Printable
    • • Drill - Subtraction under 10
      • Printable
    • • 
      • Drill - Subtraction under 10 (Auto-Generated)
      • Printable
    • • Subtract single digit numbers
      • Tutorial
    • • Subtract single digits
      • Tutorial
    • • 
      • Subtract from 10
      • Practice
    • • 
      • Subtract single digit numbers
      • Assessment
    • • 
      • Subtract single digit numbers
      • Challenge
    • • 
      • Subtract single digit numbers
      • Practice
    • • 
      • Subtract numbers less than 20
      • Assessment

  • Single digit subtraction (missing number)

    • Activities: 3 course, 7 extra

    • • Single digit subtraction (missing number)
      • Tutorial
    • • Single digit subtraction (missing number)
      • Practice
    • • Single digit subtraction (missing number)
      • Challenge

    Extra activities

    • • Subtract single digits with a missing number
      • Tutorial
    • • Single digit subtraction (missing number)
      • Printable
    • • Subtraction with a missing number - numbers under 20
      • Printable
    • • 
      • Drill - Subtraction with a missing number (Auto-Generated)
      • Printable
    • • Drill - Subtraction with a missing number
      • Printable
    • • Subtract single digits with a missing number
      • Printable
    • • 
      • Subtraction with a missing number - numbers under 20
      • Assessment

2.OA.3 – Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

• 2 learning outcomes – click to view

  Samples: Odd or Even amounts. Even numbers to 20 - equations. 

  • Odd or Even amounts

    • Activities: 1 course, 0 extra

    • • Odd or Even amounts
      • Practice

  • Choosing the correct equation

    • Activities: 1 course, 0 extra

    • • Even numbers to 20 - equations
      • Practice

2.OA.4 – Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

• 6 learning outcomes – click to view

  Samples: Groups of 2. Counting on number line (by 2's). Groups of 5. Counting on number line (by 5's). 

  • Number patterns and groups (of 2)

    • Activities: 4 course, 7 extra

    • • Groups of 2
      • Tutorial
    • • Counting in two's - rows
      • Practice
    • • Counting in two's - groups
      • Practice
    • • Groups of 2
      • Tutorial

    Extra activities

    • • Groups of 2
      • Printable
    • • Groups of 2
      • Printable
    • • 
      • Practice
    • • 
      • Groups of 2
      • Practice
    • • 
      • Groups of 2
      • Challenge
    • • 
      • Groups of 2
      • Assessment
    • • 
      • Multiply by adding lots of 2
      • Practice

  • Counting on number line (by 2's)

    • Activities: 7 course, 5 extra

    • • Counting on number line (by 2's)
      • Tutorial
    • • Counting by 2
      • Practice
    • • Counting by 2
      • Practice
    • • Counting by 2
      • Practice
    • • Counting by 2
      • Tutorial
    • • Counting by 2
      • Tutorial
    • • Counting by Two - Faster
      • Tutorial

    Extra activities

    • • Counting by 2
      • Printable
    • • Counting by 2
      • Tutorial
    • • 
      • Counting by 2
      • Assessment
    • • 
      • Count on by 2 the next three numbers
      • Practice
    • • 
      • Count by lots of 2
      • Practice

  • Number patterns and groups (of 5)

    • Activities: 5 course, 14 extra

    • • Groups of 5
      • Tutorial
    • • Rows of 5
      • Practice
    • • Groups of 5
      • Practice
    • • Groups of 5
      • Tutorial
    • • Rows of 5
      • Tutorial

    Extra activities

    • • Groups of 5
      • Printable
    • • Groups of 5
      • Printable
    • • Groups of 5
      • Printable
    • • Rows of 5 (Duplicate of 28724 for app Beta_tests)
      • Tutorial
    • • Rows of 5 (Duplicate of 28724 for app Beta_tests)
      • Tutorial
    • • Identifying the amounts in a group
      • Tutorial
    • • Groups and rows of 5
      • Tutorial
    • • Groups of 5
      • Tutorial
    • • Rows of 5
      • Tutorial
    • • 
      • Groups of 5
      • Challenge
    • • 
      • Groups of 5
      • Practice
    • • 
      • Multiply by adding lots of 5
      • Practice
    • • 
      • Groups of 5
      • Assessment
    • • 
      • Rows of five
      • Practice

  • Counting on number line (by 5's)

    • Activities: 6 course, 3 extra

    • • Counting on number line (by 5's)
      • Tutorial
    • • Counting by 5
      • Tutorial
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Tutorial

    Extra activities

    • • Counting by 5
      • Printable
    • • 
      • Counting by 5
      • Assessment
    • • 
      • Count by lots of 5
      • Practice

  • Counting on number line (by 10's)

    • Activities: 6 course, 5 extra

    • • Counting on number line (by 10's)
      • Tutorial
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Tutorial
    • • Counting by 10
      • Tutorial

    Extra activities

    • • Counting by 10
      • Printable
    • • Counting by 10
      • Printable
    • • 
      • Numbers Problem Solving
      • Assessment
    • • 
      • Count by lots of 10
      • Practice
    • • 
      • Counting by 10
      • Assessment

  • Arrays

    • Activities: 1 course, 0 extra

    • • Arrays
      • Practice

2.NBT.1 – Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

• 2.NBT.1.a – 100 can be thought of as a bundle of ten tens — called a “hundred.”

  • 3 learning outcomes – click to view

    Samples: Place Values. Counting in tens and ones. Place Values teens: counting 15 sticks. Place Values. Place value 100. 

    • Numbers represented using MAB (up to 100)

      • Activities: 3 course, 2 extra

      • • Place Values
        • Tutorial
      • • Place Values
        • Tutorial
      • • Numbers represented using MAB (up to 100)
        • Practice

      Extra activities

      • • 
        • Identifying Place Value
        • Practice
      • • 
        • Guessing game - Numbers to 100
        • Practice

    • Counting in tens and ones

      • Activities: 2 course, 2 extra

      • • Counting in tens and ones
        • Practice
      • • Place value 100
        • Practice

      Extra activities

      • • Place value 100 concepts
        • Printable
      • • Place value 100 - concepts Answer sheet
        • Printable

    • Place value concepts (bundled sticks)

      • Activities: 2 course, 1 extra

      • • Place Values teens: counting 15 sticks
        • Tutorial
      • • Place value concepts (bundled sticks)
        • Practice

      Extra activities

      • • Place value adding to 10 using objects
        • Tutorial

• 2.NBT.1.b – The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

  • 5 learning outcomes – click to view

    Samples: Place value - hundreds, tens and ones. Place Values. Counting in tens and ones. 

    • Place value - hundreds, tens and ones

      • Activities: 4 course, 2 extra

      • • Place value - hundreds, tens and ones
        • Tutorial
      • • Place value - hundreds
        • Practice
      • • Place value - hundreds, tens and ones
        • Practice
      • • Place Value
        • Tutorial

      Extra activities

      • • Place value - hundreds, tens and ones
        • Tutorial
      • • 
        • Number guessing game - numbers to 1000
        • Practice

    • Numbers represented using MAB (up to 100)

      • Activities: 3 course, 2 extra

      • • Place Values
        • Tutorial
      • • Place Values
        • Tutorial
      • • Numbers represented using MAB (up to 100)
        • Practice

      Extra activities

      • • 
        • Identifying Place Value
        • Practice
      • • 
        • Guessing game - Numbers to 100
        • Practice

    • Counting in tens and ones

      • Activities: 2 course, 2 extra

      • • Counting in tens and ones
        • Practice
      • • Place value 100
        • Practice

      Extra activities

      • • Place value 100 concepts
        • Printable
      • • Place value 100 - concepts Answer sheet
        • Printable

    • Place value concepts (bundled sticks)

      • Activities: 2 course, 1 extra

      • • Place Values teens: counting 15 sticks
        • Tutorial
      • • Place value concepts (bundled sticks)
        • Practice

      Extra activities

      • • Place value adding to 10 using objects
        • Tutorial

    • Counting by 100 (multiples of 100)

      • Activities: 1 course, 0 extra

      • • Counting by 100 (multiples of 100)
        • Practice

2.NBT.2 – Count within 1000; skip-count by 5s, 10s, and 100s.

• 4 learning outcomes – click to view

  Samples: Counting on number line (by 2's). Counting on number line (by 5's). Counting on number line (by 10's). 

  • Counting by 2 (to 20)

    • Activities: 4 course, 10 extra

    • • Counting on number line (by 2's)
      • Tutorial
    • • Skip Counting by 2's
      • Practice
    • • Skip counting by 2's - objects
      • Practice
    • • Investigating number patterns
      • Practice

    Extra activities

    • • 
      • Count by 2
      • Practice
    • • 
      • Count by 3
      • Practice
    • • 
      • Count by 5
      • Practice
    • • 
      • Continue a pattern by 3
      • Practice
    • • 
      • Count by 2
      • Practice
    • • 
      • Continue a pattern by 2 or 3
      • Practice
    • • 
      • Continue a pattern by 5
      • Practice
    • • 
      • Number patterns - counting on by 4 and 5
      • Practice
    • • 
      • Continue a pattern by 10
      • Practice
    • • 
      • Continuing a pattern - counting backwards
      • Practice

  • Counting on number line (by 5's)

    • Activities: 6 course, 3 extra

    • • Counting on number line (by 5's)
      • Tutorial
    • • Counting by 5
      • Tutorial
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Practice
    • • Counting by 5
      • Tutorial

    Extra activities

    • • Counting by 5
      • Printable
    • • 
      • Counting by 5
      • Assessment
    • • 
      • Count by lots of 5
      • Practice

  • Counting on number line (by 10's)

    • Activities: 6 course, 5 extra

    • • Counting on number line (by 10's)
      • Tutorial
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Practice
    • • Counting by 10
      • Tutorial
    • • Counting by 10
      • Tutorial

    Extra activities

    • • Counting by 10
      • Printable
    • • Counting by 10
      • Printable
    • • 
      • Numbers Problem Solving
      • Assessment
    • • 
      • Count by lots of 10
      • Practice
    • • 
      • Counting by 10
      • Assessment

  • Counting by 100 (multiples of 100)

    • Activities: 1 course, 0 extra

    • • Counting by 100 (multiples of 100)
      • Practice

2.NBT.3 – Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

• 3 learning outcomes – click to view

  Samples: Place value. Writing numbers to 1000. Numbers written in expanded form. Counting forwards and backwards by 10. 

  • Place Value - Numbers to 1000

    • Activities: 0 course, 3 extra

    Extra activities

    • • 
      • Place value
      • Practice
    • • 
      • Counting forwards and backwards by 10
      • Practice
    • • 
      • Counting forwards and backwards by 10
      • Practice

  • Writing numbers to 1000

    • Activities: 1 course, 0 extra

    • • Writing numbers to 1000
      • Practice

  • Numbers written in expanded form

    • Activities: 1 course, 0 extra

    • • Numbers written in expanded form
      • Practice

2.NBT.4 – Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.

• 1 learning outcomes – click to view

  Samples: Comparing numbers to 1000 (< = >). Greater than or less than. 

  • Comparing numbers to 1000 (< = >)

    • Activities: 1 course, 1 extra

    • • Comparing numbers to 1000 (< = >)
      • Practice

    Extra activities

    • • Greater than or less than
      • Printable

2.NBT.5 – Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

• 21 learning outcomes – click to view

  Samples: Adding on single digit numbers using blocks. Adding two digit numbers using blocks. Adding multiples of 10. 

  • Adding on single digit numbers using blocks

    • Activities: 1 course, 0 extra

    • • Adding on single digit numbers using blocks
      • Practice

  • Adding two digit numbers using blocks

    • Activities: 1 course, 0 extra

    • • Adding two digit numbers using blocks
      • Practice

  • Adding multiples of 10

    • Activities: 3 course, 4 extra

    • • Adding multiples of 10
      • Tutorial
    • • Adding multiples of 10.
      • Practice
    • • Adding multiples of 10
      • Tutorial

    Extra activities

    • • Adding multiples of 10
      • Printable
    • • Adding multiples of 10
      • Tutorial
    • • 
      • Addition problem solving
      • Assessment
    • • 
      • Adding lots of 10
      • Practice

  • Adding two digit numbers (estimating)

    • Activities: 1 course, 2 extra

    • • Adding two digit numbers (estimating)
      • Practice

    Extra activities

    • • Estimating
      • Printable
    • • Estimating Answer sheet
      • Printable

  • Adding two digit numbers (split strategy)

    • Activities: 5 course, 2 extra

    • • Adding two digit numbers (split strategy)
      • Tutorial
    • • Adding two digit numbers (split strategy)
      • Practice
    • • Adding two digit numbers (split strategy)
      • Practice
    • • Adding two digit numbers (split strategy)
      • Tutorial
    • • Adding two digit numbers (split strategy)
      • Tutorial

    Extra activities

    • • How to add using the split strategy
      • Tutorial
    • • Split strategy for addition
      • Practice

  • Adding on (numbers under 10)

    • Activities: 3 course, 14 extra

    • • Adding on (numbers under 10)
      • Tutorial
    • • Adding on (numbers under 10)
      • Practice
    • • Adding on (numbers under 10)
      • Challenge

    Extra activities

    • • Adding on (numbers under 10)
      • Printable
    • • Adding on numbers under 10 (problem solving)
      • Printable
    • • Adding on (numbers under 10)
      • Printable
    • • Add on numbers under 10
      • Tutorial
    • • Adding lots of 100 to numbers less than 1,000
      • Tutorial
    • • 
      • Adding lots of 100 to numbers less than 1,000
      • Assessment
    • • 
      • Add on numbers less than 10
      • Assessment
    • • 
      • Add numbers less than 10 to numbers less than 50
      • Challenge
    • • 
      • Adding lots of 10 to numbers less than 1,000
      • Challenge
    • • 
      • Add lots of 10 - Jump Strategy
      • Practice
    • • 
      • Adding lots of 10 to numbers less than 200
      • Assessment
    • • 
      • Adding lots of 10 to numbers less than 200
      • Challenge
    • • 
      • Adding lots of 10 to numbers less than 1,000
      • Assessment
    • • 
      • Adding lots of 100 to numbers less than 1,000
      • Challenge

  • Adding two digit numbers (jump strategy)

    • Activities: 6 course, 5 extra

    • • Adding two digit numbers (jump strategy)
      • Tutorial
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Practice
    • • Adding two digit numbers (jump strategy)
      • Tutorial
    • • Adding two digit numbers (jump strategy)
      • Tutorial

    Extra activities

    • • Jump Strategy/Method Explained
      • Tutorial
    • • Jump Strategy/Method
      • Tutorial
    • • Mental strategies in addition - add on numbers up to 20
      • Tutorial
    • • 
      • Addition of two digit numbers
      • Challenge
    • • 
      • Addition of Two Digit Numbers
      • Assessment

  • Adding two digit numbers (written strategy)

    • Activities: 5 course, 8 extra

    • • Adding two digit numbers (written strategy)
      • Tutorial
    • • Adding two digit numbers (written strategy)
      • Practice
    • • Adding two digit numbers (written strategy)
      • Practice
    • • Adding two digit numbers (written strategy) no carrying
      • Tutorial
    • • Adding two digit numbers (written strategy) with carrying
      • Tutorial

    Extra activities

    • • Adding two digit numbers (written strategy)
      • Printable
    • • Adding two digit numbers (written strategy)
      • Printable
    • • Drill - Add on lots of 10 - written strategy
      • Printable
    • • 
      • Drill - Adding two digit numbers - written strategies (Auto-Generated)
      • Printable
    • • 
      • Addition of two digit numbers
      • Practice
    • • 
      • Addition of two digit numbers
      • Practice
    • • 
      • Addition of two digit numbers - without trading
      • Practice
    • • 
      • Addition of two digit numbers
      • Tutorial

  • Adding two digit numbers (problem solving)

    • Activities: 6 course, 12 extra

    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice
    • • Adding two digit numbers (problem solving)
      • Practice

    Extra activities

    • • Adding two digit numbers (problem solving)
      • Printable
    • • Adding two digit numbers (problem solving) Answer sheet
      • Printable
    • • 
      • Problem solving using addition
      • Assessment
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Addition of two digit numbers
      • Printable
    • • Adding two digit numbers
      • Printable
    • • Subtraction - two digit numbers
      • Printable
    • • 
      • Addition of two digit numbers
      • Assessment
    • • 
      • Addition using the Jump Strategy/Method
      • Challenge

  • Subtracting 10

    • Activities: 5 course, 11 extra

    • • Subtracting 10
      • Tutorial
    • • Subtract 10
      • Practice
    • • Subtracting 10
      • Tutorial
    • • Subtracting 10
      • Challenge
    • • Subtracting 10
      • Practice

    Extra activities

    • • Subtracting 10
      • Printable
    • • Subtracting 10 (problem solving)
      • Printable
    • • Subtract 10 from numbers under 100
      • Printable
    • • Drill - Subtract 10 from numbers under 50
      • Printable
    • • Subtract 10 from larger numbers
      • Printable
    • • Subtract 10 from numbers
      • Printable
    • • 
      • Subtract 10 from larger numbers
      • Assessment
    • • 
      • Mental strategies - subtract multiples of 10 from numbers up to 200
      • Challenge
    • • 
      • Subtract 10 from larger numbers
      • Challenge
    • • 
      • Subtract 10 from numbers
      • Assessment
    • • 
      • Mental strategies - subtract multiples of 10 from numbers up to 200
      • Assessment

  • Subtracting multiples of 10

    • Activities: 3 course, 5 extra

    • • Subtracting multiples of 10
      • Tutorial
    • • Subtracting multiples of 10
      • Practice
    • • Subtracting multiples of 10
      • Tutorial

    Extra activities

    • • Subtracting multiples of 10
      • Printable
    • • Subtracting multiples of 10
      • Printable
    • • Subtract Multiples Of 10
      • Tutorial
    • • Mental strategies - subtract multiples of 10 from numbers up to 2000
      • Printable
    • • Drill - Subtract multiples of 10 from numbers under 1000
      • Printable

  • Subtracting from 100

    • Activities: 5 course, 5 extra

    • • Subtracting from 100
      • Tutorial
    • • Subtracting from 100
      • Practice
    • • Subtracting from 100
      • Challenge
    • • Subtracting from 100
      • Tutorial
    • • Subtracting from 100
      • Tutorial

    Extra activities

    • • Subtracting from 100
      • Printable
    • • Subtracting from 100
      • Printable
    • • Subtract from 100 - Written Strategy
      • Tutorial
    • • 
      • Subtract from 100
      • Practice
    • • 
      • Subtract from 100
      • Assessment

  • Adding two digit numbers (missing number)

    • Activities: 2 course, 5 extra

    • • Adding two digit numbers (missing number)
      • Tutorial
    • • Adding two digit numbers (missing number)
      • Practice

    Extra activities

    • • Adding two digit numbers (missing number)
      • Printable
    • • Adding two digit numbers (missing number)
      • Printable
    • • 
      • Drill - Add to 20 - missing number (Auto-Generated)
      • Printable
    • • Addition of two numbers - missing number
      • Tutorial
    • • Addition of two numbers - missing number
      • Printable

  • Make 100

    • Activities: 3 course, 2 extra

    • • Addition Make 100
      • Tutorial
    • • Make 100
      • Practice
    • • Make 100
      • Practice

    Extra activities

    • • Make 100
      • Printable
    • • Make 100 - Mental strategies
      • Tutorial

  • Subtracting two digit numbers (adding on)

    • Activities: 3 course, 0 extra

    • • Subtracting two digit numbers (adding on)
      • Tutorial
    • • Subtracting two digit numbers (adding on)
      • Practice
    • • Subtracting two digit numbers (adding on)
      • Practice

  • Subtracting two digit numbers (jump back strategy)

    • Activities: 5 course, 16 extra

    • • Subtracting (jumping back)
      • Tutorial
    • • Subtracting two digit numbers (jump back strategy)
      • Practice
    • • Subtracting two digit numbers (jump back strategy)
      • Practice
    • • Subtracting two digit numbers (jump back strategy)
      • Tutorial
    • • Subtract single digit numbers from numbers under 100
      • Practice

    Extra activities

    • • 
      • Drill - Subtract single digit numbers from numbers under 100 (Auto-Generated)
      • Printable
    • • Drill - Subtract single digit numbers from numbers under 100
      • Printable
    • • Subtract single digit numbers from numbers less than 100
      • Printable
    • • 
      • Subtracting numbers under 20 from numbers under 100
      • Challenge
    • • 
      • Subtracting numbers under 20 from numbers under 100
      • Assessment
    • • 
      • Subtract single digit numbers from numbers less than 100
      • Assessment
    • • Timed Challenge: Subtract single digit numbers
      • Challenge
    • • 
      • Mental Strategies - Subtraction of numbers under 50
      • Practice
    • • 
      • Subtract 20 from numbers under 100
      • Challenge
    • • 
      • Subtract 20 from numbers under 100
      • Assessment
    • • 
      • Subtract 30 from numbers under 100
      • Challenge
    • • 
      • Subtract 30 from numbers under 100
      • Assessment
    • • 
      • Subtract 40 from numbers under 100
      • Assessment
    • • 
      • Subtract 40 from numbers under 100
      • Challenge
    • • 
      • Subtract 50 from numbers under 100
      • Challenge
    • • 
      • Subtract 50 from numbers under 100
      • Assessment

  • Subtracting two digit numbers (written strategy)

    • Activities: 6 course, 10 extra

    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Practice
    • • Subtracting two digit numbers (written strategy)
      • Practice
    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtraction - two digit numbers - without trading
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Tutorial

    Extra activities

    • • Subtracting two digit numbers (written strategy)
      • Printable
    • • Subtracting two digit numbers (written strategy)
      • Printable
    • • 
      • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtracting two digit numbers (written strategy)
      • Tutorial
    • • Subtraction of two digit numbers
      • Printable
    • • 
      • Drill - Subtract from 100 - written strategy (Auto-Generated)
      • Printable
    • • Drill - Subtract from 100 - written strategy
      • Printable
    • • 
      • Subtraction - two digit numbers - without trading
      • Practice
    • • 
      • Subtraction - two digit numbers - using blocks
      • Practice
    • • 
      • Subtraction - two digit numbers
      • Practice

  • Subtracting two digit numbers (problem solving)

    • Activities: 5 course, 21 extra

    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice
    • • Subtracting two digit numbers (problem solving)
      • Practice

    Extra activities

    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers
      • Printable
    • • Subtracting two digit numbers
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtracting two digit numbers (problem solving)
      • Printable
    • • Subtract numbers less than 20
      • Printable
    • • Subtracting numbers under 20 from numbers under 100
      • Printable
    • • 
      • Problem solving using addition and subtraction
      • Assessment
    • • Drill - Subtract lots of 10 from numbers under 200
      • Printable
    • • Drill - Subtract numbers up to 100
      • Printable
    • • 
      • Problem solving using subtraction
      • Assessment
    • • 
      • Problem solving using addition and subtraction
      • Assessment
    • • 
      • Subtraction
      • Assessment
    • • 
      • Drill - Subtract numbers up to 100 (Auto-Generated)
      • Printable
    • • 
      • Subtraction - two digit numbers
      • Challenge
    • • 
      • Subtraction of two digit numbers
      • Challenge
    • • 
      • Subtraction of two digit numbers
      • Assessment

  • Adding two digit numbers (look for 10)

    • Activities: 2 course, 0 extra

    • • Adding two digit numbers (look for 10)
      • Tutorial
    • • Adding two digit numbers (look for 10)
      • Practice

  • Adding two digit numbers

    • Activities: 2 course, 1 extra

    • • Adding two digit numbers
      • Practice
    • • Adding two digit numbers
      • Practice

    Extra activities

    • • Adding two digit numbers
      • Printable

  • Single Digit Subtraction Match

    • Activities: 1 course, 0 extra

    • • Single Digit Subtraction Match
      • Practice