Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 789 · 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. 1.25% of 260 =
2. 2.10% of 360 =
3. 3.5% of 320 =
4. 4.20% of 680 =
5. 5.10% of 810 =
6. 6.25% of 180 =
7. 7.1% of 440 =
8. 8.50% of 860 =
9. 9.10% of 520 =
10. 10.25% of 790 =
11. 11.10% of 530 =
12. 12.15% of 270 =
13. 13.25% of 680 =
14. 14.10% of 530 =
15. 15.15% of 600 =
16. 16.5% of 810 =
17. 17.10% of 110 =
18. 18.5% of 60 =
19. 19.5% of 440 =
20. 20.15% of 890 =
21. 21.1% of 40 =
22. 22.20% of 780 =
23. 23.50% of 240 =
24. 24.20% of 510 =
25. 25.1% of 170 =
26. 26.15% of 190 =
27. 27.50% of 700 =
28. 28.50% of 600 =
29. 29.50% of 880 =
30. 30.10% of 240 =
31. 31.10% of 210 =
32. 32.5% of 130 =
33. 33.50% of 290 =
34. 34.50% of 610 =
35. 35.50% of 390 =
36. 36.25% of 880 =
37. 37.1% of 110 =
38. 38.10% of 70 =
39. 39.20% of 430 =
40. 40.25% of 590 =

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