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

2.09 Story problems

Interactive practice questions

There were $13$13 flowers in $Pauline$ ’s garden. $2$2 more flowers grew, then $Pauline$ picked $8$8 flowers to put in a vase.

Which number sentence matches the word problem for the number of flowers left in the garden?

$13+2+8$13+2+8

A

$13-2+8$13−2+8

B

$13+2-8$13+2−8

C

Easy

< 1min

A $rabbit$ took $8$8 jumps forward, then took $2$2 jumps back.

Easy

< 1min

The temperature was $21$21 °C at the start of the day. During the day, the temperature rose by $4$4 °C.

Easy

< 1min

$Ray$ has $10$10 comic books. $Danielle$ has $3$3 less comic books than $Ray$ .

Easy

< 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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