← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 596 · 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. 1.25% of 120 =
  2. 2.50% of 260 =
  3. 3.20% of 630 =
  4. 4.50% of 100 =
  5. 5.5% of 70 =
  6. 6.1% of 520 =
  7. 7.25% of 260 =
  8. 8.5% of 900 =
  9. 9.5% of 700 =
  10. 10.25% of 800 =
  11. 11.10% of 140 =
  12. 12.50% of 410 =
  13. 13.5% of 100 =
  14. 14.20% of 360 =
  15. 15.1% of 560 =
  16. 16.1% of 340 =
  17. 17.5% of 490 =
  18. 18.20% of 20 =
  19. 19.5% of 810 =
  20. 20.15% of 200 =
  21. 21.15% of 690 =
  22. 22.10% of 140 =
  23. 23.1% of 380 =
  24. 24.1% of 250 =
  25. 25.20% of 590 =
  26. 26.1% of 640 =
  27. 27.50% of 310 =
  28. 28.50% of 310 =
  29. 29.25% of 600 =
  30. 30.15% of 880 =
  31. 31.1% of 750 =
  32. 32.5% of 810 =
  33. 33.5% of 160 =
  34. 34.1% of 610 =
  35. 35.50% of 250 =
  36. 36.25% of 100 =
  37. 37.25% of 800 =
  38. 38.5% of 470 =
  39. 39.5% of 90 =
  40. 40.5% of 870 =

Answer key

  1. 30
  2. 130
  3. 126
  4. 50
  5. 3.5
  6. 5.2
  7. 65
  8. 45
  9. 35
  10. 200
  11. 14
  12. 205
  13. 5
  14. 72
  15. 5.6
  16. 3.4
  17. 24.5
  18. 4
  19. 40.5
  20. 30
  21. 103.5
  22. 14
  23. 3.8
  24. 2.5
  25. 118
  26. 6.4
  27. 155
  28. 155
  29. 150
  30. 132
  31. 7.5
  32. 40.5
  33. 8
  34. 6.1
  35. 125
  36. 25
  37. 200
  38. 23.5
  39. 4.5
  40. 43.5

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