## Estimating Answer sheet

Activity type: Printable

## Estimating Answer sheet

Course
Mathematics
Section
Outcome
Two digit addition (estimating)
Activity Type
Printable
Activity ID
23351

## Testimonials

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!

## United States – Common Core State Standards

• ##### 2.NBT – Number & Operations in Base Ten
• Mathematics

• 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.

• 2.NBT.6 – Add up to four two-digit numbers using strategies based on place value and properties of operations.

## Australia – Australian Curriculum

• ##### Number and Algebra
• Number and place value

• ACMNA055 – Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation

• ##### Number and Algebra
• Number and place value

• ACMNA099 – Use estimation and rounding to check the reasonableness of answers to calculations

## New Zealand – National Standards

• ##### 3.NA – Number and algebra
• 3.NA.3 – Continue spatial patterns and number patterns based on simple addition or subtraction.

• 3.NA.1 – Apply basic addition facts and knowledge of place value and symmetry to:

• 3.NA.1.a – Combine or partition whole numbers

• ##### 4.NA – Number and algebra
• 4.NA.3 – Create and continue spatial patterns and number patterns based on repeated addition or subtraction.

• 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

• ##### 5.NA – Number and algebra
• 5.NA.3 – Describe spatial and number patterns, using rules that involve spatial features, repeated addition or subtraction, and simple multiplication.

• 5.NA.1 – Apply additive and simple multiplicative strategies and knowledge of symmetry to:

## United Kingdom – National Curriculum

• ##### Year 3 programme of study
• KS2.Y3.N.NPV – Number - number and place value

• Pupils should be taught to:

• KS2.Y3.N.NPV.4 – Identify, represent and estimate numbers using different representations