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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 460 · 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. 1.25% of 280 =
  2. 2.25% of 280 =
  3. 3.1% of 60 =
  4. 4.50% of 590 =
  5. 5.1% of 480 =
  6. 6.25% of 410 =
  7. 7.5% of 580 =
  8. 8.5% of 210 =
  9. 9.1% of 710 =
  10. 10.10% of 20 =
  11. 11.5% of 680 =
  12. 12.10% of 210 =
  13. 13.10% of 330 =
  14. 14.50% of 740 =
  15. 15.5% of 770 =
  16. 16.10% of 50 =
  17. 17.25% of 420 =
  18. 18.10% of 110 =
  19. 19.5% of 30 =
  20. 20.1% of 110 =
  21. 21.50% of 880 =
  22. 22.5% of 600 =
  23. 23.15% of 480 =
  24. 24.10% of 610 =
  25. 25.15% of 780 =
  26. 26.20% of 610 =
  27. 27.50% of 560 =
  28. 28.5% of 510 =
  29. 29.25% of 190 =
  30. 30.25% of 440 =
  31. 31.25% of 40 =
  32. 32.20% of 810 =
  33. 33.25% of 710 =
  34. 34.20% of 200 =
  35. 35.25% of 300 =
  36. 36.10% of 710 =
  37. 37.5% of 440 =
  38. 38.25% of 660 =
  39. 39.50% of 640 =
  40. 40.10% of 530 =

Answer key

  1. 70
  2. 70
  3. 0.6
  4. 295
  5. 4.8
  6. 102.5
  7. 29
  8. 10.5
  9. 7.1
  10. 2
  11. 34
  12. 21
  13. 33
  14. 370
  15. 38.5
  16. 5
  17. 105
  18. 11
  19. 1.5
  20. 1.1
  21. 440
  22. 30
  23. 72
  24. 61
  25. 117
  26. 122
  27. 280
  28. 25.5
  29. 47.5
  30. 110
  31. 10
  32. 162
  33. 177.5
  34. 40
  35. 75
  36. 71
  37. 22
  38. 165
  39. 320
  40. 53

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