← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 22 · 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. 1.10% of 460 =
  2. 2.20% of 580 =
  3. 3.50% of 750 =
  4. 4.25% of 210 =
  5. 5.10% of 220 =
  6. 6.10% of 860 =
  7. 7.50% of 580 =
  8. 8.15% of 630 =
  9. 9.15% of 720 =
  10. 10.20% of 890 =
  11. 11.25% of 20 =
  12. 12.20% of 480 =
  13. 13.10% of 180 =
  14. 14.5% of 820 =
  15. 15.15% of 470 =
  16. 16.25% of 360 =
  17. 17.20% of 230 =
  18. 18.1% of 480 =
  19. 19.20% of 60 =
  20. 20.10% of 460 =
  21. 21.5% of 720 =
  22. 22.15% of 80 =
  23. 23.20% of 300 =
  24. 24.25% of 50 =
  25. 25.20% of 500 =
  26. 26.50% of 320 =
  27. 27.5% of 140 =
  28. 28.25% of 40 =
  29. 29.20% of 370 =
  30. 30.5% of 40 =
  31. 31.1% of 610 =
  32. 32.20% of 700 =
  33. 33.10% of 230 =
  34. 34.50% of 470 =
  35. 35.5% of 610 =
  36. 36.5% of 120 =
  37. 37.10% of 390 =
  38. 38.25% of 120 =
  39. 39.50% of 60 =
  40. 40.50% of 330 =

Answer key

  1. 46
  2. 116
  3. 375
  4. 52.5
  5. 22
  6. 86
  7. 290
  8. 94.5
  9. 108
  10. 178
  11. 5
  12. 96
  13. 18
  14. 41
  15. 70.5
  16. 90
  17. 46
  18. 4.8
  19. 12
  20. 46
  21. 36
  22. 12
  23. 60
  24. 12.5
  25. 100
  26. 160
  27. 7
  28. 10
  29. 74
  30. 2
  31. 6.1
  32. 140
  33. 23
  34. 235
  35. 30.5
  36. 6
  37. 39
  38. 30
  39. 30
  40. 165

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