Mathematics
Multiplication & Division
Conceptual
6–7 yrs
Commutative Multiplication
乘法交换律
Description
Understand and apply the commutative property of multiplication and recognise that division is not commutative
Mastery Evidence
- Explain that 3 × 5 = 5 × 3 and show this with an array rotated
- Use commutativity to choose the easier calculation
- Demonstrate that 12 ÷ 3 ≠ 3 ÷ 12
Assessment Prompt
Does your child know that 4 × 7 gives the same answer as 7 × 4 — so they can choose whichever order is easier to remember from their times tables?
