← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 461 · 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. 1.20% of 750 =
  2. 2.25% of 170 =
  3. 3.1% of 540 =
  4. 4.5% of 470 =
  5. 5.5% of 620 =
  6. 6.20% of 420 =
  7. 7.50% of 120 =
  8. 8.20% of 380 =
  9. 9.50% of 810 =
  10. 10.50% of 440 =
  11. 11.10% of 270 =
  12. 12.25% of 800 =
  13. 13.25% of 520 =
  14. 14.10% of 900 =
  15. 15.1% of 590 =
  16. 16.50% of 210 =
  17. 17.15% of 500 =
  18. 18.50% of 640 =
  19. 19.5% of 680 =
  20. 20.20% of 620 =
  21. 21.50% of 180 =
  22. 22.10% of 540 =
  23. 23.10% of 620 =
  24. 24.5% of 610 =
  25. 25.10% of 40 =
  26. 26.1% of 70 =
  27. 27.10% of 80 =
  28. 28.20% of 90 =
  29. 29.1% of 80 =
  30. 30.5% of 350 =
  31. 31.50% of 20 =
  32. 32.1% of 20 =
  33. 33.15% of 470 =
  34. 34.5% of 640 =
  35. 35.50% of 270 =
  36. 36.10% of 620 =
  37. 37.25% of 130 =
  38. 38.5% of 530 =
  39. 39.1% of 470 =
  40. 40.25% of 720 =

Answer key

  1. 150
  2. 42.5
  3. 5.4
  4. 23.5
  5. 31
  6. 84
  7. 60
  8. 76
  9. 405
  10. 220
  11. 27
  12. 200
  13. 130
  14. 90
  15. 5.9
  16. 105
  17. 75
  18. 320
  19. 34
  20. 124
  21. 90
  22. 54
  23. 62
  24. 30.5
  25. 4
  26. 0.7
  27. 8
  28. 18
  29. 0.8
  30. 17.5
  31. 10
  32. 0.2
  33. 70.5
  34. 32
  35. 135
  36. 62
  37. 32.5
  38. 26.5
  39. 4.7
  40. 180

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