← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 785 · 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. 1.50% of 590 =
  2. 2.20% of 380 =
  3. 3.5% of 210 =
  4. 4.5% of 370 =
  5. 5.50% of 120 =
  6. 6.5% of 60 =
  7. 7.15% of 210 =
  8. 8.5% of 290 =
  9. 9.5% of 630 =
  10. 10.5% of 530 =
  11. 11.15% of 680 =
  12. 12.50% of 800 =
  13. 13.1% of 390 =
  14. 14.5% of 80 =
  15. 15.1% of 610 =
  16. 16.1% of 580 =
  17. 17.5% of 600 =
  18. 18.20% of 360 =
  19. 19.20% of 260 =
  20. 20.10% of 880 =
  21. 21.25% of 720 =
  22. 22.15% of 620 =
  23. 23.10% of 610 =
  24. 24.25% of 50 =
  25. 25.10% of 360 =
  26. 26.20% of 890 =
  27. 27.5% of 900 =
  28. 28.10% of 720 =
  29. 29.10% of 680 =
  30. 30.15% of 280 =
  31. 31.5% of 500 =
  32. 32.25% of 810 =
  33. 33.10% of 880 =
  34. 34.10% of 280 =
  35. 35.50% of 630 =
  36. 36.15% of 470 =
  37. 37.10% of 20 =
  38. 38.1% of 830 =
  39. 39.50% of 200 =
  40. 40.50% of 420 =

Answer key

  1. 295
  2. 76
  3. 10.5
  4. 18.5
  5. 60
  6. 3
  7. 31.5
  8. 14.5
  9. 31.5
  10. 26.5
  11. 102
  12. 400
  13. 3.9
  14. 4
  15. 6.1
  16. 5.8
  17. 30
  18. 72
  19. 52
  20. 88
  21. 180
  22. 93
  23. 61
  24. 12.5
  25. 36
  26. 178
  27. 45
  28. 72
  29. 68
  30. 42
  31. 25
  32. 202.5
  33. 88
  34. 28
  35. 315
  36. 70.5
  37. 2
  38. 8.3
  39. 100
  40. 210

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