← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 879 · 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. 1.5% of 560 =
  2. 2.15% of 630 =
  3. 3.50% of 650 =
  4. 4.5% of 860 =
  5. 5.1% of 570 =
  6. 6.5% of 520 =
  7. 7.5% of 230 =
  8. 8.5% of 540 =
  9. 9.20% of 230 =
  10. 10.50% of 40 =
  11. 11.20% of 890 =
  12. 12.50% of 150 =
  13. 13.5% of 30 =
  14. 14.10% of 760 =
  15. 15.10% of 300 =
  16. 16.25% of 750 =
  17. 17.10% of 520 =
  18. 18.5% of 720 =
  19. 19.25% of 90 =
  20. 20.15% of 130 =
  21. 21.25% of 770 =
  22. 22.1% of 270 =
  23. 23.20% of 800 =
  24. 24.15% of 420 =
  25. 25.10% of 130 =
  26. 26.15% of 610 =
  27. 27.10% of 710 =
  28. 28.50% of 850 =
  29. 29.25% of 230 =
  30. 30.1% of 370 =
  31. 31.1% of 90 =
  32. 32.10% of 770 =
  33. 33.50% of 250 =
  34. 34.1% of 220 =
  35. 35.15% of 20 =
  36. 36.5% of 20 =
  37. 37.50% of 720 =
  38. 38.15% of 340 =
  39. 39.1% of 570 =
  40. 40.1% of 190 =

Answer key

  1. 28
  2. 94.5
  3. 325
  4. 43
  5. 5.7
  6. 26
  7. 11.5
  8. 27
  9. 46
  10. 20
  11. 178
  12. 75
  13. 1.5
  14. 76
  15. 30
  16. 187.5
  17. 52
  18. 36
  19. 22.5
  20. 19.5
  21. 192.5
  22. 2.7
  23. 160
  24. 63
  25. 13
  26. 91.5
  27. 71
  28. 425
  29. 57.5
  30. 3.7
  31. 0.9
  32. 77
  33. 125
  34. 2.2
  35. 3
  36. 1
  37. 360
  38. 51
  39. 5.7
  40. 1.9

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