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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 434 · 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. 1.50% of 530 =
  2. 2.1% of 270 =
  3. 3.50% of 140 =
  4. 4.25% of 700 =
  5. 5.20% of 740 =
  6. 6.1% of 660 =
  7. 7.5% of 750 =
  8. 8.5% of 40 =
  9. 9.1% of 230 =
  10. 10.10% of 220 =
  11. 11.10% of 840 =
  12. 12.50% of 490 =
  13. 13.15% of 740 =
  14. 14.10% of 410 =
  15. 15.5% of 480 =
  16. 16.15% of 690 =
  17. 17.5% of 390 =
  18. 18.15% of 480 =
  19. 19.20% of 790 =
  20. 20.10% of 320 =
  21. 21.50% of 450 =
  22. 22.1% of 350 =
  23. 23.5% of 210 =
  24. 24.15% of 270 =
  25. 25.50% of 610 =
  26. 26.10% of 140 =
  27. 27.5% of 290 =
  28. 28.20% of 870 =
  29. 29.10% of 60 =
  30. 30.1% of 220 =
  31. 31.10% of 450 =
  32. 32.15% of 60 =
  33. 33.1% of 60 =
  34. 34.10% of 280 =
  35. 35.20% of 900 =
  36. 36.5% of 830 =
  37. 37.20% of 730 =
  38. 38.5% of 870 =
  39. 39.50% of 490 =
  40. 40.15% of 280 =

Answer key

  1. 265
  2. 2.7
  3. 70
  4. 175
  5. 148
  6. 6.6
  7. 37.5
  8. 2
  9. 2.3
  10. 22
  11. 84
  12. 245
  13. 111
  14. 41
  15. 24
  16. 103.5
  17. 19.5
  18. 72
  19. 158
  20. 32
  21. 225
  22. 3.5
  23. 10.5
  24. 40.5
  25. 305
  26. 14
  27. 14.5
  28. 174
  29. 6
  30. 2.2
  31. 45
  32. 9
  33. 0.6
  34. 28
  35. 180
  36. 41.5
  37. 146
  38. 43.5
  39. 245
  40. 42

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