← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 35 · 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. 1.10% of 130 =
  2. 2.5% of 540 =
  3. 3.20% of 590 =
  4. 4.50% of 550 =
  5. 5.5% of 710 =
  6. 6.25% of 500 =
  7. 7.15% of 170 =
  8. 8.15% of 190 =
  9. 9.20% of 410 =
  10. 10.50% of 480 =
  11. 11.20% of 500 =
  12. 12.5% of 320 =
  13. 13.25% of 190 =
  14. 14.5% of 790 =
  15. 15.5% of 250 =
  16. 16.10% of 700 =
  17. 17.5% of 180 =
  18. 18.5% of 20 =
  19. 19.50% of 490 =
  20. 20.1% of 550 =
  21. 21.10% of 110 =
  22. 22.5% of 90 =
  23. 23.50% of 30 =
  24. 24.5% of 790 =
  25. 25.5% of 240 =
  26. 26.1% of 490 =
  27. 27.15% of 520 =
  28. 28.20% of 390 =
  29. 29.50% of 360 =
  30. 30.25% of 260 =
  31. 31.50% of 140 =
  32. 32.25% of 190 =
  33. 33.1% of 170 =
  34. 34.1% of 50 =
  35. 35.25% of 770 =
  36. 36.20% of 540 =
  37. 37.1% of 100 =
  38. 38.50% of 280 =
  39. 39.1% of 550 =
  40. 40.20% of 800 =

Answer key

  1. 13
  2. 27
  3. 118
  4. 275
  5. 35.5
  6. 125
  7. 25.5
  8. 28.5
  9. 82
  10. 240
  11. 100
  12. 16
  13. 47.5
  14. 39.5
  15. 12.5
  16. 70
  17. 9
  18. 1
  19. 245
  20. 5.5
  21. 11
  22. 4.5
  23. 15
  24. 39.5
  25. 12
  26. 4.9
  27. 78
  28. 78
  29. 180
  30. 65
  31. 70
  32. 47.5
  33. 1.7
  34. 0.5
  35. 192.5
  36. 108
  37. 1
  38. 140
  39. 5.5
  40. 160

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