← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 594 · 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 850 =
  2. 2.5% of 50 =
  3. 3.20% of 210 =
  4. 4.25% of 900 =
  5. 5.15% of 570 =
  6. 6.5% of 680 =
  7. 7.25% of 160 =
  8. 8.50% of 730 =
  9. 9.25% of 500 =
  10. 10.10% of 600 =
  11. 11.50% of 340 =
  12. 12.5% of 430 =
  13. 13.10% of 780 =
  14. 14.25% of 170 =
  15. 15.15% of 200 =
  16. 16.10% of 580 =
  17. 17.25% of 160 =
  18. 18.20% of 440 =
  19. 19.10% of 500 =
  20. 20.50% of 770 =
  21. 21.10% of 540 =
  22. 22.15% of 440 =
  23. 23.50% of 260 =
  24. 24.10% of 190 =
  25. 25.10% of 820 =
  26. 26.5% of 510 =
  27. 27.1% of 450 =
  28. 28.10% of 240 =
  29. 29.15% of 200 =
  30. 30.20% of 160 =
  31. 31.1% of 130 =
  32. 32.50% of 20 =
  33. 33.50% of 280 =
  34. 34.5% of 110 =
  35. 35.15% of 530 =
  36. 36.20% of 280 =
  37. 37.1% of 30 =
  38. 38.10% of 640 =
  39. 39.5% of 420 =
  40. 40.1% of 650 =

Answer key

  1. 42.5
  2. 2.5
  3. 42
  4. 225
  5. 85.5
  6. 34
  7. 40
  8. 365
  9. 125
  10. 60
  11. 170
  12. 21.5
  13. 78
  14. 42.5
  15. 30
  16. 58
  17. 40
  18. 88
  19. 50
  20. 385
  21. 54
  22. 66
  23. 130
  24. 19
  25. 82
  26. 25.5
  27. 4.5
  28. 24
  29. 30
  30. 32
  31. 1.3
  32. 10
  33. 140
  34. 5.5
  35. 79.5
  36. 56
  37. 0.3
  38. 64
  39. 21
  40. 6.5

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