NZ Level 2
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Use strategies to add/subtract two digit numbers

Interactive practice questions

If $28+20=48$28+20=48, what is the answer to $28+18$28+18?

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If $43+20=63$43+20=63, what is the answer to $43+22$43+22?

If $90-26=64$9026=64, what is the answer to $91-26$9126?

If $80-23=57$8023=57, what is the answer to $78-23$7823?

Outcomes

NA2-1

Use simple additive strategies with whole numbers and fractions

NA2-7

Generalise that whole numbers can be partitioned in many ways

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