Addition and Subtraction

Single digit addition and subtraction

Addition fact families (a+b=c, c-b=a)

Representation of add/sub using objects

Strategy - Bridge to 10 (single and double digit)

Strategy - Compensation (single and double digit)

Strategy - Number Line (single and double digit)

Use strategies to add/subtract two digit numbers

Word Sentences for add/sub

Use strategies to add/subtract across the 100

Connect addition and subtraction

Add multiples of 10's to single digit numbers

Add multiples of 10's to two digit numbers

Subtract multiples of 10's from two digit numbers

Patterns in addition

Patterns in addition II

Patterns in subtraction I

Patterns in subtraction II

Complete statements to make a target number up to 20

Add missing elements to make a statement true with totals up to 20

Add 3 numbers (mix of single or two digit numbers)

Word problems I

Add multiples of 100's to single digit numbers

Add multiples of 100's to two digit numbers

Subtract multiples of 100's from three digit numbers

Patterns in addition III

Patterns in subtraction III

Complete statements to make a target number up to 50

Add missing elements to make a statement true with totals up to 50

Inequalities with addition and subtraction statements

Level 2

Single digit addition and subtraction

Lesson

There are a range of strategies we can use to add or subtract single digit numbers such as

number lines
objects
counting on
compensation

This video talks through some of these strategies.

Worked Examples

Question 1

The image below shows one group of apples being added to another.

How many apples are there in total?

Question 2

What is $3+7$3+7?

Question 3

What is $7-1$7−1?

Outcomes

NA2-3

Know the basic addition and subtraction facts

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