2. Addition and subtraction

2.01 Estimation first

2.02 Addition without regrouping

2.03 Addition with regrouping

2.04 Subtraction without regrouping

2.05 Subtraction with regrouping

2.06 Target numbers and patterns

2.07 Estimation and multistep questions

2.08 Vertical algorithms

2.09 Story problems

2.10 Equivalent number sentences

PRACTICE: Addition and subtraction

Year 4

2.07 Estimation and multistep questions

Interactive practice questions

Look at the number sentence:

$56-43=\editable{}$56−43=

a

$56-43$56−43 will be in the:

$20$20s

A

$10$10s

B

$0$0s

C

b

Find the value of $56-43$56−43

Easy

1min

Look at the number sentence:

$214+31=\editable{}$214+31=

Easy

1min

Look at the number sentence:

$667-55=\editable{}$667−55=

Easy

1min

Look at the number sentence:

$237+316=\editable{}$237+316=

Medium

1min

Outcomes

ACMNA073

Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems

ACMNA076

Develop efficient mental and written strategies and use appropriate digital technologies for multiplication and for division where there is no remainder

ACMNA083

Find unknown quantities in number sentences involving addition and subtraction and identify equivalent number sentences involving addition and subtraction

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