Ten, Twenty, Thirty, Forty Percent

To find 10% of an amount...

• ...divide the amount by 10

• ...divide the amount by 2

• ...multiply the amount of 10

• ...divide the amount by 100

What is 10% of £40?

• £4

• £8

• £2

• £1

What is 30% of 60 km?

• 18 km

• 6 km

• 12 km

• 20 km

What is 20% of 80 cm?

Remember your units!

What is 10% of 18 m?

• 1.8 m

• 180 m

• 2 m

• 0.18 m

What is 5% of 20 g?

• 1

• 2

• 3

• 4

What is 15% of 80 mm?

Find 50% of £60

• £30
• £40
• £20
• £6

Find 10% of £40

• £5
• £4
• £3
• £2

Find 25% of 80 kg

• 40 kg
• 10 kg
• 8 kg
• 20 kg