← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 935 · 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. 1.15% of 250 =
  2. 2.10% of 600 =
  3. 3.10% of 730 =
  4. 4.25% of 60 =
  5. 5.50% of 650 =
  6. 6.50% of 550 =
  7. 7.5% of 420 =
  8. 8.20% of 40 =
  9. 9.50% of 340 =
  10. 10.50% of 510 =
  11. 11.50% of 300 =
  12. 12.5% of 600 =
  13. 13.15% of 30 =
  14. 14.25% of 400 =
  15. 15.5% of 90 =
  16. 16.10% of 850 =
  17. 17.25% of 300 =
  18. 18.5% of 860 =
  19. 19.1% of 830 =
  20. 20.10% of 80 =
  21. 21.20% of 820 =
  22. 22.50% of 550 =
  23. 23.10% of 560 =
  24. 24.15% of 850 =
  25. 25.5% of 790 =
  26. 26.50% of 600 =
  27. 27.10% of 200 =
  28. 28.25% of 410 =
  29. 29.1% of 140 =
  30. 30.50% of 140 =
  31. 31.10% of 430 =
  32. 32.5% of 460 =
  33. 33.50% of 780 =
  34. 34.5% of 860 =
  35. 35.10% of 410 =
  36. 36.25% of 290 =
  37. 37.50% of 280 =
  38. 38.1% of 470 =
  39. 39.20% of 400 =
  40. 40.20% of 150 =

Answer key

  1. 37.5
  2. 60
  3. 73
  4. 15
  5. 325
  6. 275
  7. 21
  8. 8
  9. 170
  10. 255
  11. 150
  12. 30
  13. 4.5
  14. 100
  15. 4.5
  16. 85
  17. 75
  18. 43
  19. 8.3
  20. 8
  21. 164
  22. 275
  23. 56
  24. 127.5
  25. 39.5
  26. 300
  27. 20
  28. 102.5
  29. 1.4
  30. 70
  31. 43
  32. 23
  33. 390
  34. 43
  35. 41
  36. 72.5
  37. 140
  38. 4.7
  39. 80
  40. 30

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