Year 4

Year 4

# Deriving Multiplication Facts

## Slide deck

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## Lesson details

### Key learning points

1. In this lesson, we will learn how to represent multiplication equations pictorially. Then, we will explore how we can derive new facts from known multiplication facts.

### 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

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
What is the whole represented in the bar model?
10
18
6
Correct answer: 9
Q2.
How many equal parts are represented here?
17
7
72
Correct answer: 8
Q3.
What calculation are we using to find the whole?
10 - 5
5 + 8
Correct answer: 5 x 8
Q4.
Select the bar models that does not represent a division or multiplication problem.
Correct answer: Option 1
Option 2
Option 3
Q5.
To represent a two-step word problem, you need to draw two different bar models?
False
Correct answer: True

## Exit quiz

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### 5 Questions

Q1.
What is the product in the equation below? 3 x 4 = 12
Correct answer: 12
3
4
Q2.
Select the equations that shows the commutative law.
11 x 3 = 33 and 27 + 6 = 33
2 + 7 = 9 and 3 x 3 = 9
Correct answer: 3 x 6 = 18 and 6 x 3 = 18
Q3.
What equation is represented here?
11 x 2 and 2 x 11
Correct answer: 3 x 4 and 4 x 3
3 x 5 and 5 x 3
Q4.
What is the product of this array?
11
Correct answer: 28
30
40
Q5.
Select the equations for this array.
10 x 7 = 70 and 10 x 3 = 30
100 x 10 = 1000
Correct answer: 7 x 30 = 210 and 30 x 7 = 210