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Percentage of a quantity

Stuck? Read the notes

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Without using a calculator, find the following percentage quantities

1. 10% of 220 cm
2. 20% of 130 kg
3. 15% of 320 g
4. 35% of 330 km
5. 4% of 1500 m
6. 95% of 460 s

Use a calculator to find:

7. 29% of 910 m
8. 61% of 520 s
9. 66% of 7800 cm
10. 84% of 62 kg
11. 69% of 510 km
12. 56% of 79 g

I win £134000 on the lottery and give 30% to my family

13. How much money do I give away?