Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 114 · 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. 1.20% of 790 =
2. 2.10% of 900 =
3. 3.1% of 780 =
4. 4.50% of 860 =
5. 5.15% of 520 =
6. 6.5% of 30 =
7. 7.50% of 370 =
8. 8.5% of 460 =
9. 9.5% of 880 =
10. 10.5% of 720 =
11. 11.50% of 850 =
12. 12.50% of 740 =
13. 13.20% of 880 =
14. 14.1% of 530 =
15. 15.15% of 450 =
16. 16.25% of 890 =
17. 17.15% of 620 =
18. 18.5% of 300 =
19. 19.10% of 240 =
20. 20.15% of 230 =
21. 21.50% of 560 =
22. 22.5% of 290 =
23. 23.25% of 350 =
24. 24.25% of 560 =
25. 25.10% of 140 =
26. 26.20% of 450 =
27. 27.1% of 130 =
28. 28.5% of 890 =
29. 29.20% of 590 =
30. 30.5% of 720 =
31. 31.50% of 830 =
32. 32.1% of 140 =
33. 33.50% of 730 =
34. 34.50% of 140 =
35. 35.20% of 400 =
36. 36.20% of 110 =
37. 37.50% of 340 =
38. 38.1% of 260 =
39. 39.15% of 230 =
40. 40.50% of 850 =

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