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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 295 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.20% of 40 =
  2. 2.5% of 130 =
  3. 3.1% of 690 =
  4. 4.10% of 680 =
  5. 5.20% of 30 =
  6. 6.50% of 720 =
  7. 7.5% of 720 =
  8. 8.5% of 730 =
  9. 9.5% of 440 =
  10. 10.10% of 830 =
  11. 11.25% of 280 =
  12. 12.10% of 530 =
  13. 13.5% of 330 =
  14. 14.50% of 670 =
  15. 15.10% of 330 =
  16. 16.1% of 660 =
  17. 17.25% of 430 =
  18. 18.5% of 690 =
  19. 19.50% of 260 =
  20. 20.1% of 720 =
  21. 21.1% of 70 =
  22. 22.25% of 340 =
  23. 23.1% of 220 =
  24. 24.20% of 590 =
  25. 25.10% of 780 =
  26. 26.5% of 690 =
  27. 27.20% of 480 =
  28. 28.1% of 500 =
  29. 29.15% of 700 =
  30. 30.5% of 510 =
  31. 31.25% of 530 =
  32. 32.5% of 590 =
  33. 33.20% of 110 =
  34. 34.1% of 140 =
  35. 35.20% of 130 =
  36. 36.1% of 330 =
  37. 37.20% of 300 =
  38. 38.5% of 20 =
  39. 39.50% of 290 =
  40. 40.20% of 720 =

Answer key

  1. 8
  2. 6.5
  3. 6.9
  4. 68
  5. 6
  6. 360
  7. 36
  8. 36.5
  9. 22
  10. 83
  11. 70
  12. 53
  13. 16.5
  14. 335
  15. 33
  16. 6.6
  17. 107.5
  18. 34.5
  19. 130
  20. 7.2
  21. 0.7
  22. 85
  23. 2.2
  24. 118
  25. 78
  26. 34.5
  27. 96
  28. 5
  29. 105
  30. 25.5
  31. 132.5
  32. 29.5
  33. 22
  34. 1.4
  35. 26
  36. 3.3
  37. 60
  38. 1
  39. 145
  40. 144

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