🌟 Overview
Explore how two- and three-digit numbers can be broken apart, renamed and regrouped using hundreds, tens and ones.
Students use place-value materials, drawings and number charts to show the same number in different ways, combine and split tens and ones, and understand the role of zero in place value.
📂 Subtopics Included
Includes engaging videos and worksheets for. Please click on the link to access the worksheets and videos for each subtopic:
Includes engaging videos and worksheets for each subtopic. Please click on the link to access the worksheets and videos for each subtopic:
| Step | 🔗 Lesson | 💡 What You Learn |
|---|---|---|
| 1 | 🧩 Year 2 Place Value: Partition & Rename 2‑ and 3‑Digit Numbers | Partition, rearrange, regroup and rename two- and three-digit numbers using standard and non-standard groupings (e.g. 263 = 2 hundreds 6 tens 3 ones = 26 tens 3 ones). . |
| 2 | 🧠 Year 2 Place Value: Turning Numbers into Hundreds, Tens and Ones – Examples, Activities and Printable Worksheets | Use place value to regroup tens and ones when adding and subtracting two- and three-digit numbers (e.g. 28 + 15, 63 − 27). Includes the role of zero in place value |
📚 Curriculum Reference
This topic and its worksheets are aligned with the Australian Curriculum: Mathematics (Version 9.0).
Code: AC9M2N02 – Partition, rearrange, regroup and rename two- and three-digit numbers using standard and non-standard groupings; recognise the role of a zero digit in place value notation.
🔗 Related Learning Areas
These topics work well alongside AC9M2N02:
- Recognise, Represent and Order Numbers to 1000 (AC9M2N01)
- Add and Subtract One- and Two-Digit Numbers (AC9M2N03 / AC9M2A02)
- Additive Number Patterns and Missing Numbers (AC9M2A01)
- Multiplication and Division: Doubling and Halving (AC9M2A03)
- Length, Capacity and Mass (AC9M2M01)
📝 Helpful Tips
- Use base-ten blocks, bundled icy-pole sticks, MAB blocks or drawings to build numbers to 1000.
- Use place-value charts to show standard and non-standard groupings side by side.
- Compare numbers with zero in different places (e.g. 320 vs 302) and discuss how the zero changes the value.
- Link renaming to addition and subtraction: “If 64 is 6 tens and 4 ones, how can we regroup to subtract 7 ones?”