← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 845 · 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. 1.1% of 80 =
  2. 2.25% of 420 =
  3. 3.10% of 130 =
  4. 4.5% of 680 =
  5. 5.5% of 610 =
  6. 6.10% of 610 =
  7. 7.50% of 420 =
  8. 8.5% of 50 =
  9. 9.10% of 30 =
  10. 10.50% of 210 =
  11. 11.5% of 490 =
  12. 12.15% of 770 =
  13. 13.10% of 720 =
  14. 14.20% of 450 =
  15. 15.20% of 290 =
  16. 16.20% of 720 =
  17. 17.10% of 70 =
  18. 18.10% of 240 =
  19. 19.50% of 770 =
  20. 20.20% of 230 =
  21. 21.1% of 780 =
  22. 22.5% of 90 =
  23. 23.20% of 160 =
  24. 24.25% of 150 =
  25. 25.5% of 580 =
  26. 26.25% of 240 =
  27. 27.5% of 400 =
  28. 28.5% of 470 =
  29. 29.1% of 650 =
  30. 30.1% of 760 =
  31. 31.10% of 780 =
  32. 32.5% of 540 =
  33. 33.25% of 310 =
  34. 34.50% of 400 =
  35. 35.20% of 770 =
  36. 36.10% of 450 =
  37. 37.50% of 560 =
  38. 38.10% of 520 =
  39. 39.20% of 740 =
  40. 40.10% of 580 =

Answer key

  1. 0.8
  2. 105
  3. 13
  4. 34
  5. 30.5
  6. 61
  7. 210
  8. 2.5
  9. 3
  10. 105
  11. 24.5
  12. 115.5
  13. 72
  14. 90
  15. 58
  16. 144
  17. 7
  18. 24
  19. 385
  20. 46
  21. 7.8
  22. 4.5
  23. 32
  24. 37.5
  25. 29
  26. 60
  27. 20
  28. 23.5
  29. 6.5
  30. 7.6
  31. 78
  32. 27
  33. 77.5
  34. 200
  35. 154
  36. 45
  37. 280
  38. 52
  39. 148
  40. 58

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