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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 730 · 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 130 =
  2. 2.25% of 860 =
  3. 3.25% of 690 =
  4. 4.10% of 590 =
  5. 5.25% of 480 =
  6. 6.25% of 260 =
  7. 7.1% of 250 =
  8. 8.15% of 900 =
  9. 9.5% of 490 =
  10. 10.50% of 40 =
  11. 11.5% of 60 =
  12. 12.50% of 610 =
  13. 13.1% of 110 =
  14. 14.25% of 300 =
  15. 15.50% of 220 =
  16. 16.20% of 720 =
  17. 17.10% of 300 =
  18. 18.50% of 660 =
  19. 19.15% of 650 =
  20. 20.10% of 820 =
  21. 21.50% of 570 =
  22. 22.15% of 220 =
  23. 23.15% of 250 =
  24. 24.10% of 570 =
  25. 25.5% of 60 =
  26. 26.20% of 20 =
  27. 27.20% of 640 =
  28. 28.10% of 810 =
  29. 29.15% of 480 =
  30. 30.5% of 640 =
  31. 31.25% of 420 =
  32. 32.10% of 330 =
  33. 33.5% of 850 =
  34. 34.10% of 460 =
  35. 35.10% of 210 =
  36. 36.20% of 780 =
  37. 37.50% of 130 =
  38. 38.50% of 390 =
  39. 39.25% of 880 =
  40. 40.50% of 570 =

Answer key

  1. 26
  2. 215
  3. 172.5
  4. 59
  5. 120
  6. 65
  7. 2.5
  8. 135
  9. 24.5
  10. 20
  11. 3
  12. 305
  13. 1.1
  14. 75
  15. 110
  16. 144
  17. 30
  18. 330
  19. 97.5
  20. 82
  21. 285
  22. 33
  23. 37.5
  24. 57
  25. 3
  26. 4
  27. 128
  28. 81
  29. 72
  30. 32
  31. 105
  32. 33
  33. 42.5
  34. 46
  35. 21
  36. 156
  37. 65
  38. 195
  39. 220
  40. 285

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