Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 202 · 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 270 =
2. 2.50% of 700 =
3. 3.5% of 280 =
4. 4.10% of 860 =
5. 5.10% of 190 =
6. 6.25% of 670 =
7. 7.10% of 150 =
8. 8.5% of 330 =
9. 9.5% of 550 =
10. 10.5% of 130 =
11. 11.10% of 270 =
12. 12.25% of 900 =
13. 13.50% of 70 =
14. 14.50% of 360 =
15. 15.50% of 320 =
16. 16.1% of 740 =
17. 17.1% of 150 =
18. 18.20% of 110 =
19. 19.10% of 250 =
20. 20.10% of 810 =
21. 21.10% of 580 =
22. 22.5% of 890 =
23. 23.25% of 480 =
24. 24.20% of 350 =
25. 25.50% of 420 =
26. 26.25% of 50 =
27. 27.5% of 890 =
28. 28.10% of 170 =
29. 29.15% of 810 =
30. 30.20% of 230 =
31. 31.5% of 410 =
32. 32.15% of 250 =
33. 33.20% of 490 =
34. 34.50% of 720 =
35. 35.25% of 400 =
36. 36.5% of 120 =
37. 37.50% of 650 =
38. 38.5% of 220 =
39. 39.50% of 130 =
40. 40.50% of 400 =

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