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ACARA AC9M2N04, Add and subtract one- and two-digit numbers

Year 2 ยท Number

Add and subtract one- and two-digit numbers, writing problems as number sentences and solving them with part-part-whole reasoning and a range of strategies.

Below are free printable maths worksheets that support AC9M2N04. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Add and subtract one- and two-digit numbers, writing problems as number sentences and solving them with part-part-whole reasoning and a range of strategies.

How to teach it

Start by counting on from the larger number, then move to partitioning into tens and ones and adding each part, and finally column addition with regrouping.

Worked example
1 + 15 =
Answer: 16

Generated and checked in code, so it is correct.

Watch out for

Adding the tens and ones columns without carrying the regrouped ten, and always counting on from the first number rather than the larger.

Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Word Problems worksheets

All word problems worksheets โ†’

Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.

Make a worksheet for AC9M2N04
More Year 2 Number codes: AC9M2N01 ยท AC9M2N02 ยท AC9M2N03 ยท AC9M2N05 ยท AC9M2N06
โ† Browse all Australian Curriculum maths codes

Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.