What a brilliant site you have!!! I love it, especially as it saves me hours and hours of hard work. Others who haven't found your site yet don't know what they are missing!
K.OA.2 – Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
Samples: Adding dots. Add on to 10. Subtraction with visual cues: Activity 1. Addition to 20. Make 10.
1.OA.1 – Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, 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/ )
Samples: Plus two. Adding within 5. Add on to 10. Adding to 10 (visual cues). Subtract from 10 (losing acorns). Addition to 20.
1.OA.3 – Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
Samples: Adding dots. Add on to 10. Addition to 20. Single digit addition (missing number). Subtract from 10 (losing acorns).
1.OA.6 – Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Samples: Addition to 20. Subtract Single Digit Numbers. Single digit addition: Activity 1. Make 10. Single digit subtraction.
1.OA.8 – Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ – 3, 6 + 6 = _.
Samples: Make 10. Single digit addition (missing number). Subtract single digits with a missing number. Plus two.
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.
Samples: Addition to 20. Single digit addition (missing number). Subtract Single Digit Numbers.
Number and place value
ACMNA029 – Explore the connection between addition and subtraction
Samples: Add single digit numbers. Addition to 20. Single digit addition: Activity 1. Counting Forwards By 10. Make 10. Make 10.
3.NA.3 – Continue spatial patterns and number patterns based on simple addition or subtraction.
4.NA.3 – Create and continue spatial patterns and number patterns based on repeated addition or subtraction.
Samples: Add single digit numbers. Addition to 20. Counting Forwards By 10. Make 10. Single digit addition (missing number).
4.NA.1 – Apply basic addition and subtraction facts, simple multiplication facts, and knowledge of place value and symmetry to:
4.NA.1.a – Combine or partition whole numbers
Samples: Ordinal numbers. Odd or Even amounts. Even numbers to 20 - equations. Place Values. Place value 100.
KS1.Y1.N.AS – Number - addition and subtraction
Pupils should be taught to:
KS1.Y1.N.AS.2 – Represent and use number bonds and related subtraction facts within 20
Samples: Subtract from 10 (losing acorns). Subtraction using counters. Subtract Single Digit Numbers.
KS1.Y1.N.AS.3 – Add and subtract one-digit and two-digit numbers to 20, including 0
Samples: Adding within 5. Adding dots. Add single digit numbers. Addition to 20. Add three numbers - each under 6.
KS1.Y2.N.AS – Number - addition and subtraction
Pupils should be taught to:
KS1.Y2.N.AS.3 – Add and subtract numbers using concrete objects, pictorial representations, and mentally, including:
KS1.Y2.N.AS.3.a: a two-digit number and 1s
Samples: Place value - 'Adding On' single digit numbers. Subtract single digits with a missing number.