← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 676 · 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. 1.20% of 30 =
  2. 2.20% of 680 =
  3. 3.10% of 440 =
  4. 4.25% of 290 =
  5. 5.5% of 30 =
  6. 6.10% of 130 =
  7. 7.1% of 710 =
  8. 8.10% of 720 =
  9. 9.50% of 640 =
  10. 10.5% of 580 =
  11. 11.10% of 800 =
  12. 12.50% of 600 =
  13. 13.50% of 870 =
  14. 14.10% of 180 =
  15. 15.25% of 60 =
  16. 16.20% of 210 =
  17. 17.10% of 30 =
  18. 18.10% of 500 =
  19. 19.1% of 190 =
  20. 20.20% of 680 =
  21. 21.10% of 380 =
  22. 22.10% of 680 =
  23. 23.5% of 350 =
  24. 24.5% of 110 =
  25. 25.25% of 600 =
  26. 26.25% of 870 =
  27. 27.25% of 560 =
  28. 28.25% of 250 =
  29. 29.15% of 900 =
  30. 30.1% of 180 =
  31. 31.5% of 320 =
  32. 32.5% of 280 =
  33. 33.5% of 200 =
  34. 34.5% of 70 =
  35. 35.10% of 320 =
  36. 36.1% of 360 =
  37. 37.1% of 330 =
  38. 38.10% of 790 =
  39. 39.5% of 400 =
  40. 40.15% of 380 =

Answer key

  1. 6
  2. 136
  3. 44
  4. 72.5
  5. 1.5
  6. 13
  7. 7.1
  8. 72
  9. 320
  10. 29
  11. 80
  12. 300
  13. 435
  14. 18
  15. 15
  16. 42
  17. 3
  18. 50
  19. 1.9
  20. 136
  21. 38
  22. 68
  23. 17.5
  24. 5.5
  25. 150
  26. 217.5
  27. 140
  28. 62.5
  29. 135
  30. 1.8
  31. 16
  32. 14
  33. 10
  34. 3.5
  35. 32
  36. 3.6
  37. 3.3
  38. 79
  39. 20
  40. 57

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