Week 17 Percentages

​Percentages

Objectives

Recap Fractions/Percentages
Percentages of amounts
Percentage Increases
Percentage Decreases
Worded Percentage Questions

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​percentages of
amounts

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​percentages of
amounts

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​percentages of
amounts

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​your turn

​EXTENSION

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​your turn

​EXTENSION

Multiple Choice

Find 10% of £40

• £5
• £4
• £3
• £2

Multiple Choice

Find 5% of £80

• £8
• £40
• £4
• £20

Multiple Choice

Find 2% of 300 g

• 3 g
• 30 g
• 6 g
• 60 g

Multiple Choice

Work out 75% of 60

• 30

• 60

• 15

• 45

Multiple Choice

To calculate 25% of a given amount you work out.

• Given amount divided by 25.

• 4 divided by the given amount.

• 25 divided by the given amount.

• Given amount divided by 4.

Multiple Choice

To calculate 25% of a given amount you work out.

• Given amount divided by 25.

• 4 divided by the given amount.

• 25 divided by the given amount.

• Given amount divided by 4.

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​Percentage
Decrease

Decrease 80 by 5%

Decrease 77 by 0.25%

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​Percentage
Increase

​Increase 350 by 15%

​Increase 4575 by 12.5%

​your turn

​EXTENSION

​your turn

​EXTENSION

​answers

26

Fill in the Blanks

Increase £2400 by 9%

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​Percentage
Increase

​Decrease £1090 by 42%

​Decrease 1400 by 30%

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​your turn

​EXTENSION

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​your turn

​EXTENSION

Multiple Choice

Increase 400 by 25%

• 425

• 500

• 300

• 375

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​Percentage
Worded

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​Percentage
Worded

Fill in the Blanks

Answer the exam question. Try without a calculator first!!