← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 313 · 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 180 =
  2. 2.25% of 390 =
  3. 3.50% of 760 =
  4. 4.25% of 90 =
  5. 5.1% of 470 =
  6. 6.20% of 580 =
  7. 7.50% of 30 =
  8. 8.25% of 340 =
  9. 9.5% of 360 =
  10. 10.50% of 690 =
  11. 11.15% of 610 =
  12. 12.20% of 370 =
  13. 13.10% of 30 =
  14. 14.5% of 510 =
  15. 15.25% of 600 =
  16. 16.5% of 640 =
  17. 17.50% of 810 =
  18. 18.50% of 180 =
  19. 19.25% of 350 =
  20. 20.10% of 370 =
  21. 21.10% of 150 =
  22. 22.5% of 480 =
  23. 23.15% of 710 =
  24. 24.15% of 440 =
  25. 25.25% of 670 =
  26. 26.1% of 450 =
  27. 27.5% of 510 =
  28. 28.10% of 240 =
  29. 29.15% of 710 =
  30. 30.15% of 40 =
  31. 31.5% of 640 =
  32. 32.10% of 510 =
  33. 33.1% of 460 =
  34. 34.5% of 810 =
  35. 35.5% of 160 =
  36. 36.20% of 270 =
  37. 37.10% of 700 =
  38. 38.5% of 880 =
  39. 39.15% of 260 =
  40. 40.10% of 370 =

Answer key

  1. 45
  2. 97.5
  3. 380
  4. 22.5
  5. 4.7
  6. 116
  7. 15
  8. 85
  9. 18
  10. 345
  11. 91.5
  12. 74
  13. 3
  14. 25.5
  15. 150
  16. 32
  17. 405
  18. 90
  19. 87.5
  20. 37
  21. 15
  22. 24
  23. 106.5
  24. 66
  25. 167.5
  26. 4.5
  27. 25.5
  28. 24
  29. 106.5
  30. 6
  31. 32
  32. 51
  33. 4.6
  34. 40.5
  35. 8
  36. 54
  37. 70
  38. 44
  39. 39
  40. 37

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