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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 494 · 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 130 =
  2. 2.5% of 360 =
  3. 3.1% of 220 =
  4. 4.20% of 470 =
  5. 5.25% of 480 =
  6. 6.1% of 130 =
  7. 7.20% of 300 =
  8. 8.20% of 730 =
  9. 9.50% of 550 =
  10. 10.5% of 870 =
  11. 11.1% of 200 =
  12. 12.20% of 640 =
  13. 13.10% of 500 =
  14. 14.20% of 530 =
  15. 15.25% of 760 =
  16. 16.20% of 400 =
  17. 17.50% of 750 =
  18. 18.25% of 330 =
  19. 19.15% of 170 =
  20. 20.20% of 320 =
  21. 21.5% of 190 =
  22. 22.5% of 810 =
  23. 23.25% of 220 =
  24. 24.50% of 740 =
  25. 25.25% of 340 =
  26. 26.50% of 550 =
  27. 27.25% of 150 =
  28. 28.50% of 880 =
  29. 29.20% of 360 =
  30. 30.50% of 870 =
  31. 31.25% of 740 =
  32. 32.15% of 440 =
  33. 33.50% of 210 =
  34. 34.5% of 100 =
  35. 35.25% of 780 =
  36. 36.20% of 390 =
  37. 37.50% of 420 =
  38. 38.1% of 440 =
  39. 39.10% of 80 =
  40. 40.50% of 320 =

Answer key

  1. 6.5
  2. 18
  3. 2.2
  4. 94
  5. 120
  6. 1.3
  7. 60
  8. 146
  9. 275
  10. 43.5
  11. 2
  12. 128
  13. 50
  14. 106
  15. 190
  16. 80
  17. 375
  18. 82.5
  19. 25.5
  20. 64
  21. 9.5
  22. 40.5
  23. 55
  24. 370
  25. 85
  26. 275
  27. 37.5
  28. 440
  29. 72
  30. 435
  31. 185
  32. 66
  33. 105
  34. 5
  35. 195
  36. 78
  37. 210
  38. 4.4
  39. 8
  40. 160

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