Year 5 Mathematics – Term 2 (WA Curriculum): Subtraction and More

What this unit covers

In Term 2, Year 5 Mathematics in the WA Curriculum centres on the unit “Subtraction and More”.

Term 2 Mathematics for Year 5. Focus areas: subtraction, multiplication concepts. Aligned with WA Curriculum v9.

Lesson sequence (40 lessons)

The unit breaks down into the following lesson-by-lesson sequence — each title below is a teachable lesson, in order:

1. Reading and Writing Five-Digit Numbers in Standard Form
2. Partitioning Five-Digit Numbers Using Place Value Charts
3. Comparing and Ordering Five-Digit Numbers Using Place Value
4. Exploring the Relationship Between Adjacent Place Values
5. Reading and Writing Six-Digit Numbers with Confidence
6. Subtracting Two-Digit Numbers Using Mental Strategies
7. Subtracting Three-Digit Numbers Using the Standard Algorithm
8. Solving Subtraction Problems with Regrouping Across Zeros
9. Estimating Differences Before Calculating Exact Answers
10. Representing Multiplication as Equal Groups Using Arrays
11. Identifying Factors of Numbers Using Concrete Materials
12. Finding Multiples of Single-Digit Numbers Using Skip Counting
13. Creating Arrays to Show Factor Pairs of Numbers
14. Explaining Why Numbers Have Different Factor Pairs
15. Introducing Unit Fractions Using Concrete Materials
16. Counting by Unit Fractions on a Number Line
17. Locating Unit Fractions Between Whole Numbers
18. Representing Fractions Greater Than One Using Models
19. Converting Between Improper Fractions and Mixed Numerals
20. Reading Decimal Numbers to One Decimal Place
21. Partitioning Decimal Numbers Using Place Value Understanding
22. Comparing and Ordering Decimal Numbers on a Number Line
23. Recognising Percentages in Everyday Shopping Situations
24. Understanding That 100% Equals One Complete Whole
25. Creating Additive Patterns Using Given Rules
26. Creating Multiplicative Patterns Following Specific Rules
27. Writing Equations to Represent Real-World Addition Problems
28. Writing Equations to Represent Real-World Multiplication Situations
29. Choosing Appropriate Units to Estimate and Measure Mass in Grams and Kilograms
30. Selecting Metric Units to Estimate and Measure Capacity in Millilitres and Litres
31. Identifying Dimensions of Metric Cubic Units and Constructing Rectangular Prisms
32. Comparing Mass, Capacity and Volume Measurements Using Appropriate Metric Units
33. Determining Volume of Rectangular Prisms by Counting Unit Cubes
34. Solving Real-World Problems Involving Mass, Capacity and Volume Measurements
35. Identifying Equally Likely and Not Equally Likely Outcomes in Everyday Events
36. Conducting Simple Chance Experiments and Recording Results as Fractions
37. Comparing Experimental Results with Expected Outcomes Using Digital Tools
38. Posing Questions and Collecting Categorical Data from Real-World Contexts
39. Organising and Representing Discrete Numerical Data in Appropriate Displays
40. Interpreting Line Graphs Showing Changes in Continuous Data Over Time

Curriculum codes in this unit

Content codes:

Reading the codes: WA codes (the ones starting with WA) pack the year level, learning area, strand and content number into one string, while the national Australian Curriculum v9 uses a different anatomy that starts with AC9 — same content family, different labels. Our complete WA Curriculum guide decodes both, character by character.

Planning notes for Term 2

WA terms run roughly 9–11 weeks, and in 2026 Term 2 runs from Monday 20 April to Friday 3 July — 11 weeks for WA public schools. With 40 lessons in this unit, that leaves breathing room for assessment, moderation and the weeks that disappear to carnivals, camps and public holidays — plan the assessable work to land two to three weeks before the end of term rather than in the final week.