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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 576 · 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. 1.50% of 30 =
  2. 2.15% of 450 =
  3. 3.5% of 260 =
  4. 4.5% of 860 =
  5. 5.15% of 760 =
  6. 6.10% of 770 =
  7. 7.25% of 730 =
  8. 8.1% of 300 =
  9. 9.5% of 280 =
  10. 10.5% of 470 =
  11. 11.20% of 420 =
  12. 12.20% of 700 =
  13. 13.1% of 890 =
  14. 14.50% of 660 =
  15. 15.1% of 720 =
  16. 16.1% of 670 =
  17. 17.5% of 830 =
  18. 18.5% of 720 =
  19. 19.50% of 110 =
  20. 20.20% of 380 =
  21. 21.10% of 890 =
  22. 22.25% of 750 =
  23. 23.10% of 520 =
  24. 24.5% of 140 =
  25. 25.50% of 430 =
  26. 26.15% of 330 =
  27. 27.15% of 450 =
  28. 28.15% of 80 =
  29. 29.10% of 740 =
  30. 30.1% of 150 =
  31. 31.5% of 370 =
  32. 32.25% of 650 =
  33. 33.1% of 100 =
  34. 34.5% of 460 =
  35. 35.20% of 760 =
  36. 36.50% of 200 =
  37. 37.50% of 70 =
  38. 38.20% of 330 =
  39. 39.50% of 570 =
  40. 40.5% of 290 =

Answer key

  1. 15
  2. 67.5
  3. 13
  4. 43
  5. 114
  6. 77
  7. 182.5
  8. 3
  9. 14
  10. 23.5
  11. 84
  12. 140
  13. 8.9
  14. 330
  15. 7.2
  16. 6.7
  17. 41.5
  18. 36
  19. 55
  20. 76
  21. 89
  22. 187.5
  23. 52
  24. 7
  25. 215
  26. 49.5
  27. 67.5
  28. 12
  29. 74
  30. 1.5
  31. 18.5
  32. 162.5
  33. 1
  34. 23
  35. 152
  36. 100
  37. 35
  38. 66
  39. 285
  40. 14.5

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