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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 986 · 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. 2.50% of 210 =
  3. 3.20% of 530 =
  4. 4.5% of 740 =
  5. 5.20% of 700 =
  6. 6.10% of 600 =
  7. 7.5% of 300 =
  8. 8.10% of 370 =
  9. 9.5% of 20 =
  10. 10.25% of 200 =
  11. 11.25% of 400 =
  12. 12.25% of 890 =
  13. 13.50% of 250 =
  14. 14.1% of 370 =
  15. 15.25% of 440 =
  16. 16.25% of 840 =
  17. 17.25% of 430 =
  18. 18.1% of 760 =
  19. 19.20% of 150 =
  20. 20.20% of 410 =
  21. 21.20% of 700 =
  22. 22.25% of 40 =
  23. 23.5% of 280 =
  24. 24.15% of 480 =
  25. 25.15% of 580 =
  26. 26.1% of 630 =
  27. 27.5% of 440 =
  28. 28.50% of 500 =
  29. 29.20% of 580 =
  30. 30.15% of 710 =
  31. 31.25% of 200 =
  32. 32.20% of 740 =
  33. 33.50% of 100 =
  34. 34.20% of 610 =
  35. 35.25% of 460 =
  36. 36.1% of 250 =
  37. 37.20% of 570 =
  38. 38.20% of 230 =
  39. 39.20% of 250 =
  40. 40.1% of 800 =

Answer key

  1. 13
  2. 105
  3. 106
  4. 37
  5. 140
  6. 60
  7. 15
  8. 37
  9. 1
  10. 50
  11. 100
  12. 222.5
  13. 125
  14. 3.7
  15. 110
  16. 210
  17. 107.5
  18. 7.6
  19. 30
  20. 82
  21. 140
  22. 10
  23. 14
  24. 72
  25. 87
  26. 6.3
  27. 22
  28. 250
  29. 116
  30. 106.5
  31. 50
  32. 148
  33. 50
  34. 122
  35. 115
  36. 2.5
  37. 114
  38. 46
  39. 50
  40. 8

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