Year 10
Foundation

Repeated percentage increase and decrease

Year 10
Foundation

Repeated percentage increase and decrease

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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

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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