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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 349 · 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. 1.10% of 130 =
  2. 2.1% of 200 =
  3. 3.1% of 720 =
  4. 4.25% of 150 =
  5. 5.20% of 260 =
  6. 6.50% of 540 =
  7. 7.25% of 630 =
  8. 8.20% of 500 =
  9. 9.5% of 210 =
  10. 10.25% of 170 =
  11. 11.10% of 880 =
  12. 12.25% of 240 =
  13. 13.20% of 260 =
  14. 14.1% of 140 =
  15. 15.20% of 640 =
  16. 16.50% of 770 =
  17. 17.50% of 500 =
  18. 18.15% of 610 =
  19. 19.20% of 470 =
  20. 20.10% of 250 =
  21. 21.15% of 600 =
  22. 22.1% of 800 =
  23. 23.15% of 160 =
  24. 24.1% of 830 =
  25. 25.10% of 380 =
  26. 26.1% of 810 =
  27. 27.20% of 20 =
  28. 28.20% of 70 =
  29. 29.15% of 70 =
  30. 30.10% of 800 =
  31. 31.25% of 420 =
  32. 32.1% of 320 =
  33. 33.1% of 20 =
  34. 34.20% of 90 =
  35. 35.25% of 620 =
  36. 36.1% of 460 =
  37. 37.20% of 810 =
  38. 38.25% of 770 =
  39. 39.50% of 110 =
  40. 40.5% of 410 =

Answer key

  1. 13
  2. 2
  3. 7.2
  4. 37.5
  5. 52
  6. 270
  7. 157.5
  8. 100
  9. 10.5
  10. 42.5
  11. 88
  12. 60
  13. 52
  14. 1.4
  15. 128
  16. 385
  17. 250
  18. 91.5
  19. 94
  20. 25
  21. 90
  22. 8
  23. 24
  24. 8.3
  25. 38
  26. 8.1
  27. 4
  28. 14
  29. 10.5
  30. 80
  31. 105
  32. 3.2
  33. 0.2
  34. 18
  35. 155
  36. 4.6
  37. 162
  38. 192.5
  39. 55
  40. 20.5

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