# Multi-age 3–6, mathematics, Year B – Unit 13

This multi-age unit develops the big idea that multiplicative thinking involves flexible use of multiplication and division concepts, strategies and representations.

In this 2-week unit, students are provided opportunities to:

• select and apply strategies to solve problems involving multiplication and division with whole numbers
• investigate and apply the use of multiples to determine unknown values (Stage 2)
• use number properties to find related multiplication facts (Stage 2)
• multiply and divide decimals by powers of 10 (Stage 3)
• investigate the order of operations using real-life contexts (Stage 3).

## Syllabus focus area and content groups

### Stage 2

Representing numbers using place value A – MAO-WM-01, MA2-RN-01

Whole numbers: Apply place value to partition and regroup numbers up to 4 digits

Representing numbers using place value B – MAO-WM-01, MA2-RN-01

• Whole numbers: Apply place value to partition, regroup and rename numbers up to 6 digits
• Whole numbers: Recognise and represent numbers that are 10, 100 or 1000 times as large

Multiplicative relations A – MAO-WM-01, MA2-MR-01

• Use arrays to establish multiplication facts from multiples of 2 and 4, 5 and 10
• Represent and solve problems involving multiplication fact families

Multiplicative relations B – MAO-WM-01, MA2-MR-01

• Investigate number sequences involving related multiples
• Use known number facts and strategies
• Use the structure of the area model to represent multiplication and division
• Use number properties to find related multiplication facts
• Operate with multiples of 10
• Represent and solve word problems with number sentences involving multiplication or division

### Stage 3

Multiplicative relations B – MAO-WM-01, MA3-MR-01, MA3-MR-02

• Select and apply strategies to solve problems involving multiplication and division with whole numbers
• Multiply and divide decimals by powers of 10
• Use equivalent number sentences involving multiplication and division to find unknown quantities
• Represent and describe number patterns formed by multiples
• Explore the use of brackets and the order of operations to write number sentences

## Syllabus

Outcomes and content descriptors from Mathematics K–10 Syllabus (2022) © NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales, 2024.

Category:

• Mathematics (2022)
• Multiplicative relations
• Represents numbers using place value
• Unit