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Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 476 · 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 880 =
  2. 2.25% of 750 =
  3. 3.10% of 830 =
  4. 4.25% of 890 =
  5. 5.20% of 660 =
  6. 6.20% of 800 =
  7. 7.10% of 230 =
  8. 8.25% of 260 =
  9. 9.1% of 310 =
  10. 10.5% of 40 =
  11. 11.15% of 570 =
  12. 12.25% of 470 =
  13. 13.20% of 200 =
  14. 14.20% of 240 =
  15. 15.10% of 520 =
  16. 16.20% of 860 =
  17. 17.50% of 800 =
  18. 18.5% of 860 =
  19. 19.50% of 400 =
  20. 20.20% of 250 =
  21. 21.10% of 690 =
  22. 22.20% of 650 =
  23. 23.1% of 840 =
  24. 24.20% of 350 =
  25. 25.25% of 650 =
  26. 26.25% of 240 =
  27. 27.50% of 370 =
  28. 28.25% of 170 =
  29. 29.1% of 200 =
  30. 30.10% of 590 =
  31. 31.5% of 300 =
  32. 32.5% of 470 =
  33. 33.10% of 490 =
  34. 34.5% of 70 =
  35. 35.10% of 190 =
  36. 36.5% of 880 =
  37. 37.50% of 520 =
  38. 38.50% of 240 =
  39. 39.20% of 730 =
  40. 40.25% of 600 =

Answer key

  1. 88
  2. 187.5
  3. 83
  4. 222.5
  5. 132
  6. 160
  7. 23
  8. 65
  9. 3.1
  10. 2
  11. 85.5
  12. 117.5
  13. 40
  14. 48
  15. 52
  16. 172
  17. 400
  18. 43
  19. 200
  20. 50
  21. 69
  22. 130
  23. 8.4
  24. 70
  25. 162.5
  26. 60
  27. 185
  28. 42.5
  29. 2
  30. 59
  31. 15
  32. 23.5
  33. 49
  34. 3.5
  35. 19
  36. 44
  37. 260
  38. 120
  39. 146
  40. 150

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