← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 25 · 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. 1.15% of 60 =
  2. 2.25% of 260 =
  3. 3.20% of 500 =
  4. 4.50% of 470 =
  5. 5.15% of 390 =
  6. 6.20% of 130 =
  7. 7.25% of 500 =
  8. 8.10% of 830 =
  9. 9.10% of 660 =
  10. 10.1% of 380 =
  11. 11.5% of 270 =
  12. 12.20% of 50 =
  13. 13.15% of 900 =
  14. 14.10% of 540 =
  15. 15.10% of 900 =
  16. 16.5% of 60 =
  17. 17.10% of 640 =
  18. 18.25% of 190 =
  19. 19.25% of 880 =
  20. 20.5% of 270 =
  21. 21.25% of 510 =
  22. 22.20% of 860 =
  23. 23.1% of 200 =
  24. 24.10% of 360 =
  25. 25.50% of 350 =
  26. 26.10% of 170 =
  27. 27.25% of 180 =
  28. 28.10% of 830 =
  29. 29.20% of 320 =
  30. 30.5% of 90 =
  31. 31.5% of 200 =
  32. 32.5% of 250 =
  33. 33.15% of 680 =
  34. 34.20% of 700 =
  35. 35.20% of 830 =
  36. 36.20% of 150 =
  37. 37.10% of 30 =
  38. 38.5% of 100 =
  39. 39.20% of 840 =
  40. 40.10% of 880 =

Answer key

  1. 9
  2. 65
  3. 100
  4. 235
  5. 58.5
  6. 26
  7. 125
  8. 83
  9. 66
  10. 3.8
  11. 13.5
  12. 10
  13. 135
  14. 54
  15. 90
  16. 3
  17. 64
  18. 47.5
  19. 220
  20. 13.5
  21. 127.5
  22. 172
  23. 2
  24. 36
  25. 175
  26. 17
  27. 45
  28. 83
  29. 64
  30. 4.5
  31. 10
  32. 12.5
  33. 102
  34. 140
  35. 166
  36. 30
  37. 3
  38. 5
  39. 168
  40. 88

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