Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 71 · 40 questions

The fast method (Build from 10%): 10%: divide by 10. 1%: divide by 100. 5% = half of 10%, 20% = double 10%, 15% = 10% + 5%. 50% = half, 25% = half of a half.

1. 1.15% of 560 =
2. 2.50% of 30 =
3. 3.1% of 220 =
4. 4.25% of 790 =
5. 5.25% of 150 =
6. 6.20% of 160 =
7. 7.20% of 260 =
8. 8.1% of 780 =
9. 9.5% of 220 =
10. 10.10% of 200 =
11. 11.10% of 320 =
12. 12.50% of 600 =
13. 13.20% of 850 =
14. 14.50% of 470 =
15. 15.50% of 650 =
16. 16.50% of 840 =
17. 17.25% of 630 =
18. 18.10% of 540 =
19. 19.15% of 330 =
20. 20.1% of 410 =
21. 21.10% of 600 =
22. 22.10% of 100 =
23. 23.50% of 260 =
24. 24.10% of 770 =
25. 25.50% of 180 =
26. 26.20% of 280 =
27. 27.50% of 730 =
28. 28.50% of 480 =
29. 29.20% of 530 =
30. 30.20% of 490 =
31. 31.10% of 690 =
32. 32.25% of 440 =
33. 33.20% of 200 =
34. 34.15% of 500 =
35. 35.20% of 240 =
36. 36.50% of 620 =
37. 37.25% of 80 =
38. 38.50% of 150 =
39. 39.20% of 220 =
40. 40.15% of 380 =

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