• Mastery PD Materials

## Times tables: groups of 10 and of 5, and factors of 0 and 1

Spine 2: Multiplication and Division – Topic 2.4

### Introduction

Build up the ten and five times tables, combining children’s experience of counting in units of five or ten and of representing equal groups; explore patterns in the ten and five times tables, and generalise about the product when one factor is zero or one.

### Teaching points

• Teaching point 1: Counting in multiples of ten can be represented by the ten times table. Adjacent multiples of ten have a difference of ten. Facts from the ten times table can be used to solve problems about groups of ten.

• Teaching point 2: Counting in multiples of five can be represented by the five times table. Adjacent multiples of five have a difference of five. Facts from the five times table can be used to solve problems about groups of five.

• Teaching point 3: Skip counting and grouping can be used to explore the relationship between the five times table and the ten times table.

• Teaching point 4: When zero is a factor, the product is zero. When one is a factor, the product is equal to the other factor (if there are only two factors).

• Primary
• KS1
• Year 2