Year 10
Foundation

Increase and Decrease an Amount by a Percentage

Year 10
Foundation

Increase and Decrease an Amount by a Percentage

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Lesson details

Key learning points

  1. In this lesson, we will learn about increasing or decreasing an amount by a percentage determining and using a decimal multiplier.

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.
Increase 70 by 35%
105
24.5
94
Correct answer: 94.5
Q2.
Decrease 225 by 75%
300
393.75
52
Correct answer: 56.25
Q3.
Q3) An adult ticket for the cinema costs £12.80. A child ticket is half the price of an adult ticket. Mr and Mrs Smith and their six children go to see a movie. Mrs Smith has a voucher for 22% off. How much money does she save?
Correct answer: £14.08
£38.40
£6.40
£64