# Understanding that multiplication and division are inverse operations

## Lesson details

### Key learning points

1. In this lesson, we will explore the concept of inverse operations with regards to multiplication and division. As a result, we will use our times tables knowledge to help us answer division questions.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

Share with pupils

## Worksheet

Share with pupils

## Starter quiz

Share with pupils

### 5 Questions

Q1.
Bar models help us by...
Correct answer: allowing us to understand the question more clearly
having nice colours
Q2.
Arrays and bar models can represent the same thing?
False
Q3.
This bar model could show...
12 x 9
3 x 6
5 x 6
Q4.
What could be the question this bar model is showing?
16 x 3 =
4 x 3 = 16
Correct answer: 4 x 4 = 16
4 x 5 = 16
Q5.
4 x ? = 20 (Use the bar model to help you)
20
4
6

## Exit quiz

Share with pupils

### 5 Questions

Q1.
The inverse of multiplication is...
subtraction
Q2.
Knowing your times tables can help to solve division calculations
false
Q3.
The inverse of 3 x 4 = is
3 x 3 =
4 x 3
4 x 4
Q4.
Which multiplication fact will help you solve this division calculation? 18 ÷ 6 =
18 ÷ 2 = 9
6 ÷ 2 = 3
Correct answer: 6 x 3 = 18
6 x 6 =36
Q5.
I have 30 sweets to share with my friends. I have 5 friends. How many sweets will each of them get?
30
35
5