ACARA AC9M2N02, Regroup two- and three-digit numbers

Year 2 · Number

Partition, rearrange, regroup and rename two- and three-digit numbers in standard and non-standard ways, and understand the job a zero digit does in place value.

Below are free printable maths worksheets that support AC9M2N02. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teach this code

Deliver a whole lesson on AC9M2N02 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Adding several two-digit numbers, and jumping by tens and hundreds

Grade 2 (ages 7 to 8)

Addition and subtraction word problems within 100

Grade 2 (ages 7 to 8)

Reading, writing and comparing numbers to 1000

Grade 2 (ages 7 to 8)

Two-digit addition with regrouping

Grade 2 (ages 7 to 8)

Two-digit subtraction with regrouping

Grade 2 (ages 7 to 8)

Tens and ones

Grade 1 (ages 6 to 7)

Adding and subtracting within 100

Grade 2 (ages 7 to 8)

Teaching guide

What students learn

Partition, rearrange, regroup and rename two- and three-digit numbers in standard and non-standard ways, and understand the job a zero digit does in place value.

234 = 2 hundreds + 3 tens + 4 ones

How to teach it

Build numbers with base-ten blocks or bundles of ten, then say the value of each digit ('the 3 is worth 30'). Expand numbers (300 + 40 + 2).

Worked example

What is the value of the digit 6 in 3603?

Answer: 600

Generated and checked in code, so it is correct.

Watch out for

Reading a digit at face value regardless of its column, and dropping the zero as a place-holder (e.g. writing 32 for 302).