← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 21 · 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 740 =
  2. 2.25% of 120 =
  3. 3.50% of 670 =
  4. 4.20% of 320 =
  5. 5.10% of 600 =
  6. 6.50% of 170 =
  7. 7.1% of 190 =
  8. 8.20% of 510 =
  9. 9.25% of 200 =
  10. 10.10% of 540 =
  11. 11.50% of 180 =
  12. 12.50% of 250 =
  13. 13.5% of 850 =
  14. 14.20% of 340 =
  15. 15.20% of 680 =
  16. 16.10% of 490 =
  17. 17.15% of 30 =
  18. 18.20% of 460 =
  19. 19.1% of 400 =
  20. 20.20% of 140 =
  21. 21.20% of 610 =
  22. 22.25% of 570 =
  23. 23.25% of 600 =
  24. 24.5% of 180 =
  25. 25.10% of 330 =
  26. 26.20% of 170 =
  27. 27.25% of 740 =
  28. 28.20% of 770 =
  29. 29.20% of 610 =
  30. 30.50% of 270 =
  31. 31.10% of 890 =
  32. 32.20% of 480 =
  33. 33.20% of 660 =
  34. 34.15% of 150 =
  35. 35.5% of 340 =
  36. 36.10% of 860 =
  37. 37.10% of 400 =
  38. 38.15% of 160 =
  39. 39.1% of 540 =
  40. 40.20% of 300 =

Answer key

  1. 37
  2. 30
  3. 335
  4. 64
  5. 60
  6. 85
  7. 1.9
  8. 102
  9. 50
  10. 54
  11. 90
  12. 125
  13. 42.5
  14. 68
  15. 136
  16. 49
  17. 4.5
  18. 92
  19. 4
  20. 28
  21. 122
  22. 142.5
  23. 150
  24. 9
  25. 33
  26. 34
  27. 185
  28. 154
  29. 122
  30. 135
  31. 89
  32. 96
  33. 132
  34. 22.5
  35. 17
  36. 86
  37. 40
  38. 24
  39. 5.4
  40. 60

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