← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 288 · 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. 1.25% of 800 =
  2. 2.10% of 740 =
  3. 3.1% of 240 =
  4. 4.10% of 530 =
  5. 5.20% of 360 =
  6. 6.15% of 170 =
  7. 7.25% of 100 =
  8. 8.25% of 550 =
  9. 9.1% of 120 =
  10. 10.5% of 660 =
  11. 11.50% of 590 =
  12. 12.25% of 750 =
  13. 13.5% of 770 =
  14. 14.10% of 120 =
  15. 15.10% of 370 =
  16. 16.1% of 360 =
  17. 17.50% of 560 =
  18. 18.50% of 500 =
  19. 19.25% of 140 =
  20. 20.20% of 670 =
  21. 21.15% of 670 =
  22. 22.20% of 200 =
  23. 23.15% of 750 =
  24. 24.20% of 710 =
  25. 25.10% of 250 =
  26. 26.50% of 850 =
  27. 27.20% of 550 =
  28. 28.50% of 210 =
  29. 29.25% of 820 =
  30. 30.5% of 110 =
  31. 31.15% of 20 =
  32. 32.1% of 90 =
  33. 33.5% of 120 =
  34. 34.50% of 740 =
  35. 35.10% of 220 =
  36. 36.50% of 90 =
  37. 37.5% of 670 =
  38. 38.50% of 900 =
  39. 39.50% of 30 =
  40. 40.25% of 500 =

Answer key

  1. 200
  2. 74
  3. 2.4
  4. 53
  5. 72
  6. 25.5
  7. 25
  8. 137.5
  9. 1.2
  10. 33
  11. 295
  12. 187.5
  13. 38.5
  14. 12
  15. 37
  16. 3.6
  17. 280
  18. 250
  19. 35
  20. 134
  21. 100.5
  22. 40
  23. 112.5
  24. 142
  25. 25
  26. 425
  27. 110
  28. 105
  29. 205
  30. 5.5
  31. 3
  32. 0.9
  33. 6
  34. 370
  35. 22
  36. 45
  37. 33.5
  38. 450
  39. 15
  40. 125

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