← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 56 · 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 460 =
  2. 2.15% of 20 =
  3. 3.10% of 110 =
  4. 4.15% of 580 =
  5. 5.10% of 80 =
  6. 6.25% of 200 =
  7. 7.15% of 520 =
  8. 8.15% of 150 =
  9. 9.25% of 20 =
  10. 10.10% of 900 =
  11. 11.1% of 20 =
  12. 12.25% of 270 =
  13. 13.20% of 640 =
  14. 14.50% of 210 =
  15. 15.1% of 430 =
  16. 16.1% of 90 =
  17. 17.25% of 500 =
  18. 18.25% of 820 =
  19. 19.1% of 20 =
  20. 20.5% of 390 =
  21. 21.20% of 440 =
  22. 22.10% of 670 =
  23. 23.15% of 100 =
  24. 24.5% of 40 =
  25. 25.15% of 190 =
  26. 26.25% of 220 =
  27. 27.20% of 30 =
  28. 28.10% of 130 =
  29. 29.50% of 730 =
  30. 30.1% of 890 =
  31. 31.25% of 580 =
  32. 32.50% of 290 =
  33. 33.50% of 870 =
  34. 34.25% of 430 =
  35. 35.50% of 410 =
  36. 36.20% of 710 =
  37. 37.50% of 150 =
  38. 38.5% of 180 =
  39. 39.15% of 830 =
  40. 40.15% of 480 =

Answer key

  1. 23
  2. 3
  3. 11
  4. 87
  5. 8
  6. 50
  7. 78
  8. 22.5
  9. 5
  10. 90
  11. 0.2
  12. 67.5
  13. 128
  14. 105
  15. 4.3
  16. 0.9
  17. 125
  18. 205
  19. 0.2
  20. 19.5
  21. 88
  22. 67
  23. 15
  24. 2
  25. 28.5
  26. 55
  27. 6
  28. 13
  29. 365
  30. 8.9
  31. 145
  32. 145
  33. 435
  34. 107.5
  35. 205
  36. 142
  37. 75
  38. 9
  39. 124.5
  40. 72

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths