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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 714 · 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. 1.5% of 60 =
  2. 2.25% of 190 =
  3. 3.15% of 740 =
  4. 4.1% of 200 =
  5. 5.5% of 680 =
  6. 6.1% of 850 =
  7. 7.50% of 150 =
  8. 8.10% of 270 =
  9. 9.5% of 420 =
  10. 10.25% of 320 =
  11. 11.25% of 420 =
  12. 12.5% of 240 =
  13. 13.1% of 490 =
  14. 14.5% of 870 =
  15. 15.15% of 690 =
  16. 16.25% of 110 =
  17. 17.15% of 700 =
  18. 18.15% of 740 =
  19. 19.50% of 540 =
  20. 20.20% of 370 =
  21. 21.50% of 460 =
  22. 22.5% of 160 =
  23. 23.15% of 760 =
  24. 24.25% of 440 =
  25. 25.20% of 820 =
  26. 26.25% of 110 =
  27. 27.15% of 150 =
  28. 28.5% of 430 =
  29. 29.15% of 720 =
  30. 30.20% of 770 =
  31. 31.10% of 170 =
  32. 32.25% of 680 =
  33. 33.50% of 650 =
  34. 34.10% of 800 =
  35. 35.50% of 620 =
  36. 36.50% of 590 =
  37. 37.50% of 230 =
  38. 38.1% of 520 =
  39. 39.15% of 130 =
  40. 40.10% of 80 =

Answer key

  1. 3
  2. 47.5
  3. 111
  4. 2
  5. 34
  6. 8.5
  7. 75
  8. 27
  9. 21
  10. 80
  11. 105
  12. 12
  13. 4.9
  14. 43.5
  15. 103.5
  16. 27.5
  17. 105
  18. 111
  19. 270
  20. 74
  21. 230
  22. 8
  23. 114
  24. 110
  25. 164
  26. 27.5
  27. 22.5
  28. 21.5
  29. 108
  30. 154
  31. 17
  32. 170
  33. 325
  34. 80
  35. 310
  36. 295
  37. 115
  38. 5.2
  39. 19.5
  40. 8

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