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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 588 · 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. 1.15% of 560 =
  2. 2.15% of 580 =
  3. 3.15% of 770 =
  4. 4.1% of 840 =
  5. 5.50% of 620 =
  6. 6.10% of 600 =
  7. 7.20% of 740 =
  8. 8.10% of 770 =
  9. 9.10% of 370 =
  10. 10.15% of 760 =
  11. 11.50% of 890 =
  12. 12.20% of 230 =
  13. 13.5% of 30 =
  14. 14.15% of 680 =
  15. 15.5% of 130 =
  16. 16.10% of 570 =
  17. 17.25% of 780 =
  18. 18.15% of 540 =
  19. 19.25% of 580 =
  20. 20.1% of 70 =
  21. 21.10% of 120 =
  22. 22.15% of 900 =
  23. 23.1% of 330 =
  24. 24.20% of 60 =
  25. 25.15% of 620 =
  26. 26.20% of 470 =
  27. 27.5% of 230 =
  28. 28.5% of 890 =
  29. 29.50% of 140 =
  30. 30.50% of 380 =
  31. 31.5% of 680 =
  32. 32.25% of 370 =
  33. 33.1% of 680 =
  34. 34.1% of 900 =
  35. 35.25% of 520 =
  36. 36.50% of 140 =
  37. 37.10% of 300 =
  38. 38.50% of 420 =
  39. 39.5% of 650 =
  40. 40.50% of 120 =

Answer key

  1. 84
  2. 87
  3. 115.5
  4. 8.4
  5. 310
  6. 60
  7. 148
  8. 77
  9. 37
  10. 114
  11. 445
  12. 46
  13. 1.5
  14. 102
  15. 6.5
  16. 57
  17. 195
  18. 81
  19. 145
  20. 0.7
  21. 12
  22. 135
  23. 3.3
  24. 12
  25. 93
  26. 94
  27. 11.5
  28. 44.5
  29. 70
  30. 190
  31. 34
  32. 92.5
  33. 6.8
  34. 9
  35. 130
  36. 70
  37. 30
  38. 210
  39. 32.5
  40. 60

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