← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 706 · 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 20 =
  2. 2.15% of 150 =
  3. 3.15% of 540 =
  4. 4.20% of 160 =
  5. 5.15% of 440 =
  6. 6.25% of 250 =
  7. 7.25% of 590 =
  8. 8.25% of 240 =
  9. 9.25% of 720 =
  10. 10.25% of 60 =
  11. 11.25% of 690 =
  12. 12.20% of 30 =
  13. 13.25% of 640 =
  14. 14.15% of 270 =
  15. 15.1% of 840 =
  16. 16.5% of 140 =
  17. 17.1% of 770 =
  18. 18.25% of 60 =
  19. 19.10% of 580 =
  20. 20.50% of 480 =
  21. 21.5% of 50 =
  22. 22.1% of 410 =
  23. 23.5% of 390 =
  24. 24.1% of 230 =
  25. 25.5% of 480 =
  26. 26.10% of 510 =
  27. 27.10% of 730 =
  28. 28.1% of 710 =
  29. 29.20% of 770 =
  30. 30.50% of 60 =
  31. 31.10% of 540 =
  32. 32.1% of 100 =
  33. 33.20% of 810 =
  34. 34.50% of 210 =
  35. 35.5% of 380 =
  36. 36.5% of 460 =
  37. 37.5% of 290 =
  38. 38.10% of 460 =
  39. 39.50% of 450 =
  40. 40.5% of 340 =

Answer key

  1. 2
  2. 22.5
  3. 81
  4. 32
  5. 66
  6. 62.5
  7. 147.5
  8. 60
  9. 180
  10. 15
  11. 172.5
  12. 6
  13. 160
  14. 40.5
  15. 8.4
  16. 7
  17. 7.7
  18. 15
  19. 58
  20. 240
  21. 2.5
  22. 4.1
  23. 19.5
  24. 2.3
  25. 24
  26. 51
  27. 73
  28. 7.1
  29. 154
  30. 30
  31. 54
  32. 1
  33. 162
  34. 105
  35. 19
  36. 23
  37. 14.5
  38. 46
  39. 225
  40. 17

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