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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 325 · 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 880 =
  2. 2.10% of 360 =
  3. 3.20% of 70 =
  4. 4.1% of 260 =
  5. 5.50% of 30 =
  6. 6.50% of 90 =
  7. 7.25% of 190 =
  8. 8.1% of 480 =
  9. 9.50% of 270 =
  10. 10.5% of 580 =
  11. 11.5% of 380 =
  12. 12.20% of 730 =
  13. 13.5% of 140 =
  14. 14.20% of 720 =
  15. 15.15% of 380 =
  16. 16.10% of 850 =
  17. 17.25% of 630 =
  18. 18.15% of 580 =
  19. 19.10% of 150 =
  20. 20.15% of 490 =
  21. 21.25% of 470 =
  22. 22.10% of 440 =
  23. 23.15% of 430 =
  24. 24.10% of 20 =
  25. 25.25% of 590 =
  26. 26.10% of 730 =
  27. 27.15% of 330 =
  28. 28.20% of 300 =
  29. 29.1% of 190 =
  30. 30.20% of 890 =
  31. 31.10% of 760 =
  32. 32.10% of 190 =
  33. 33.1% of 630 =
  34. 34.1% of 410 =
  35. 35.50% of 620 =
  36. 36.15% of 510 =
  37. 37.20% of 320 =
  38. 38.5% of 370 =
  39. 39.5% of 750 =
  40. 40.1% of 440 =

Answer key

  1. 176
  2. 36
  3. 14
  4. 2.6
  5. 15
  6. 45
  7. 47.5
  8. 4.8
  9. 135
  10. 29
  11. 19
  12. 146
  13. 7
  14. 144
  15. 57
  16. 85
  17. 157.5
  18. 87
  19. 15
  20. 73.5
  21. 117.5
  22. 44
  23. 64.5
  24. 2
  25. 147.5
  26. 73
  27. 49.5
  28. 60
  29. 1.9
  30. 178
  31. 76
  32. 19
  33. 6.3
  34. 4.1
  35. 310
  36. 76.5
  37. 64
  38. 18.5
  39. 37.5
  40. 4.4

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