← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 167 · 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. 1.15% of 630 =
  2. 2.15% of 800 =
  3. 3.5% of 430 =
  4. 4.10% of 120 =
  5. 5.25% of 790 =
  6. 6.5% of 370 =
  7. 7.15% of 200 =
  8. 8.20% of 830 =
  9. 9.25% of 590 =
  10. 10.20% of 20 =
  11. 11.15% of 310 =
  12. 12.25% of 450 =
  13. 13.50% of 60 =
  14. 14.5% of 260 =
  15. 15.50% of 190 =
  16. 16.1% of 690 =
  17. 17.20% of 670 =
  18. 18.5% of 700 =
  19. 19.25% of 420 =
  20. 20.5% of 890 =
  21. 21.10% of 680 =
  22. 22.15% of 780 =
  23. 23.10% of 490 =
  24. 24.1% of 70 =
  25. 25.25% of 20 =
  26. 26.25% of 460 =
  27. 27.5% of 450 =
  28. 28.5% of 50 =
  29. 29.10% of 680 =
  30. 30.10% of 550 =
  31. 31.20% of 530 =
  32. 32.10% of 880 =
  33. 33.1% of 460 =
  34. 34.50% of 870 =
  35. 35.1% of 600 =
  36. 36.25% of 150 =
  37. 37.5% of 70 =
  38. 38.10% of 830 =
  39. 39.5% of 160 =
  40. 40.1% of 540 =

Answer key

  1. 94.5
  2. 120
  3. 21.5
  4. 12
  5. 197.5
  6. 18.5
  7. 30
  8. 166
  9. 147.5
  10. 4
  11. 46.5
  12. 112.5
  13. 30
  14. 13
  15. 95
  16. 6.9
  17. 134
  18. 35
  19. 105
  20. 44.5
  21. 68
  22. 117
  23. 49
  24. 0.7
  25. 5
  26. 115
  27. 22.5
  28. 2.5
  29. 68
  30. 55
  31. 106
  32. 88
  33. 4.6
  34. 435
  35. 6
  36. 37.5
  37. 3.5
  38. 83
  39. 8
  40. 5.4

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