← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 530 · 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 850 =
  2. 2.20% of 810 =
  3. 3.10% of 400 =
  4. 4.15% of 350 =
  5. 5.20% of 140 =
  6. 6.5% of 720 =
  7. 7.5% of 540 =
  8. 8.25% of 150 =
  9. 9.20% of 200 =
  10. 10.5% of 860 =
  11. 11.20% of 630 =
  12. 12.10% of 90 =
  13. 13.25% of 850 =
  14. 14.50% of 520 =
  15. 15.20% of 110 =
  16. 16.5% of 320 =
  17. 17.20% of 170 =
  18. 18.20% of 590 =
  19. 19.5% of 660 =
  20. 20.5% of 780 =
  21. 21.20% of 320 =
  22. 22.1% of 60 =
  23. 23.50% of 360 =
  24. 24.15% of 190 =
  25. 25.25% of 400 =
  26. 26.15% of 60 =
  27. 27.10% of 190 =
  28. 28.15% of 70 =
  29. 29.10% of 790 =
  30. 30.1% of 390 =
  31. 31.20% of 860 =
  32. 32.5% of 610 =
  33. 33.20% of 30 =
  34. 34.1% of 320 =
  35. 35.5% of 760 =
  36. 36.25% of 200 =
  37. 37.50% of 80 =
  38. 38.10% of 90 =
  39. 39.25% of 320 =
  40. 40.10% of 220 =

Answer key

  1. 8.5
  2. 162
  3. 40
  4. 52.5
  5. 28
  6. 36
  7. 27
  8. 37.5
  9. 40
  10. 43
  11. 126
  12. 9
  13. 212.5
  14. 260
  15. 22
  16. 16
  17. 34
  18. 118
  19. 33
  20. 39
  21. 64
  22. 0.6
  23. 180
  24. 28.5
  25. 100
  26. 9
  27. 19
  28. 10.5
  29. 79
  30. 3.9
  31. 172
  32. 30.5
  33. 6
  34. 3.2
  35. 38
  36. 50
  37. 40
  38. 9
  39. 80
  40. 22

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