# Solve problems involving the relative size of two quantities (Part 1)

## Lesson details

### Key learning points

1. In this lesson, we will solve problems involving the relative size of two quantities.

### 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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### 3 Questions

Q1.
Square B is an enlargement of square A. What is the scale factor of this enlargement?
Scale factor 4
Scale factor 8
Q2.
Triangle B is an enlargement of triangle A. What is the scale factor of this enlargement?
Scale factor 3
Scale factor 8
Q3.
Rectangle A has been enlarged by scale factor 6. What is the missing dimension on rectangle B?
18 cm
7 cm

## Exit quiz

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### 4 Questions

Q1.
Enlarge 12 by scale factor 1/4.
48
8
Q2.
Enlarge 30 by scale factor 1/6.
18
180
Q3.
Enlarge 2.5 by scale factor 7.
-5.5
9.5
Q4.
Enlarge 4.8 by scale factor 1/2.
1.2
9.6