Year 10
Foundation

Repeated percentage increase and decrease

Year 10
Foundation

Repeated percentage increase and decrease

Lesson details

Key learning points

  1. In this lesson, we will learn how to apply a repeated percentage increase and decrease by using multipliers

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.

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3 Questions

Q1.
Which two decimals would decrease an amount by 10%, followed by 20%?
0.1 and 0.2
0.9 and 0.2
Correct answer: 0.9 and 0.8
1.1 and 1.2
Q2.
What could a multiplication of 0.7 followed by a multiplication of 0.5 represent?
A decrease of 30%, then a decrease of 5%
Correct answer: A decrease of 30%, then a decrease of 50%
A decrease of 70%, then a decrease of 5%
A decrease of 70%, then a decrease of 50%
Q3.
An image in a quiz
a
b
Correct answer: c
d

3 Questions

Q1.
Which two decimals would decrease an amount by 10% then increase by 20%?
0.1 and 1.2
Correct answer: 0.9 and 1.2
1.1 and 0.2
1.1 and 1.2
Q2.
What could a multiplication of 0.7 followed by a multiplication of 1.3 represent?
Correct answer: A decrease of 30%, then an increase of 30%
A decrease of 70%, then a decrease of 30%
A decrease of 70%, then an increase of 30%
An increase of 70%, then a decrease of 30%
Q3.
An image in a quiz
a
b
Correct answer: c
d