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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 303 · 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 880 =
  2. 2.1% of 510 =
  3. 3.10% of 510 =
  4. 4.50% of 60 =
  5. 5.10% of 120 =
  6. 6.1% of 830 =
  7. 7.20% of 160 =
  8. 8.5% of 310 =
  9. 9.5% of 520 =
  10. 10.5% of 530 =
  11. 11.5% of 810 =
  12. 12.50% of 760 =
  13. 13.20% of 110 =
  14. 14.10% of 510 =
  15. 15.25% of 120 =
  16. 16.5% of 100 =
  17. 17.10% of 390 =
  18. 18.50% of 160 =
  19. 19.20% of 680 =
  20. 20.5% of 160 =
  21. 21.15% of 100 =
  22. 22.50% of 480 =
  23. 23.25% of 280 =
  24. 24.50% of 150 =
  25. 25.20% of 330 =
  26. 26.25% of 270 =
  27. 27.5% of 800 =
  28. 28.1% of 140 =
  29. 29.5% of 40 =
  30. 30.25% of 600 =
  31. 31.5% of 310 =
  32. 32.5% of 290 =
  33. 33.10% of 480 =
  34. 34.1% of 240 =
  35. 35.5% of 400 =
  36. 36.25% of 550 =
  37. 37.25% of 400 =
  38. 38.20% of 480 =
  39. 39.20% of 760 =
  40. 40.50% of 890 =

Answer key

  1. 44
  2. 5.1
  3. 51
  4. 30
  5. 12
  6. 8.3
  7. 32
  8. 15.5
  9. 26
  10. 26.5
  11. 40.5
  12. 380
  13. 22
  14. 51
  15. 30
  16. 5
  17. 39
  18. 80
  19. 136
  20. 8
  21. 15
  22. 240
  23. 70
  24. 75
  25. 66
  26. 67.5
  27. 40
  28. 1.4
  29. 2
  30. 150
  31. 15.5
  32. 14.5
  33. 48
  34. 2.4
  35. 20
  36. 137.5
  37. 100
  38. 96
  39. 152
  40. 445

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