Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 694 · 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. 1.10% of 180 =
2. 2.15% of 250 =
3. 3.1% of 870 =
4. 4.15% of 770 =
5. 5.25% of 30 =
6. 6.10% of 270 =
7. 7.10% of 20 =
8. 8.10% of 700 =
9. 9.50% of 670 =
10. 10.25% of 200 =
11. 11.15% of 80 =
12. 12.15% of 80 =
13. 13.5% of 530 =
14. 14.5% of 580 =
15. 15.15% of 800 =
16. 16.25% of 160 =
17. 17.15% of 160 =
18. 18.1% of 800 =
19. 19.20% of 280 =
20. 20.25% of 460 =
21. 21.20% of 720 =
22. 22.15% of 870 =
23. 23.15% of 170 =
24. 24.15% of 140 =
25. 25.10% of 490 =
26. 26.20% of 110 =
27. 27.50% of 410 =
28. 28.50% of 830 =
29. 29.20% of 120 =
30. 30.50% of 640 =
31. 31.25% of 260 =
32. 32.15% of 570 =
33. 33.15% of 780 =
34. 34.15% of 260 =
35. 35.15% of 300 =
36. 36.20% of 630 =
37. 37.20% of 130 =
38. 38.20% of 220 =
39. 39.20% of 80 =
40. 40.10% of 500 =

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