← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 864 · 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 760 =
  2. 2.5% of 440 =
  3. 3.20% of 430 =
  4. 4.25% of 530 =
  5. 5.1% of 90 =
  6. 6.15% of 160 =
  7. 7.15% of 740 =
  8. 8.15% of 770 =
  9. 9.20% of 170 =
  10. 10.10% of 820 =
  11. 11.1% of 340 =
  12. 12.10% of 160 =
  13. 13.15% of 760 =
  14. 14.5% of 250 =
  15. 15.20% of 140 =
  16. 16.1% of 190 =
  17. 17.1% of 720 =
  18. 18.10% of 360 =
  19. 19.15% of 140 =
  20. 20.1% of 750 =
  21. 21.20% of 540 =
  22. 22.10% of 260 =
  23. 23.1% of 800 =
  24. 24.1% of 260 =
  25. 25.25% of 60 =
  26. 26.15% of 290 =
  27. 27.5% of 640 =
  28. 28.5% of 740 =
  29. 29.20% of 190 =
  30. 30.25% of 90 =
  31. 31.15% of 890 =
  32. 32.5% of 190 =
  33. 33.25% of 500 =
  34. 34.20% of 580 =
  35. 35.50% of 610 =
  36. 36.50% of 500 =
  37. 37.20% of 860 =
  38. 38.1% of 760 =
  39. 39.5% of 760 =
  40. 40.50% of 490 =

Answer key

  1. 38
  2. 22
  3. 86
  4. 132.5
  5. 0.9
  6. 24
  7. 111
  8. 115.5
  9. 34
  10. 82
  11. 3.4
  12. 16
  13. 114
  14. 12.5
  15. 28
  16. 1.9
  17. 7.2
  18. 36
  19. 21
  20. 7.5
  21. 108
  22. 26
  23. 8
  24. 2.6
  25. 15
  26. 43.5
  27. 32
  28. 37
  29. 38
  30. 22.5
  31. 133.5
  32. 9.5
  33. 125
  34. 116
  35. 305
  36. 250
  37. 172
  38. 7.6
  39. 38
  40. 245

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