← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 956 · 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 350 =
  2. 2.25% of 890 =
  3. 3.10% of 720 =
  4. 4.1% of 650 =
  5. 5.1% of 60 =
  6. 6.1% of 140 =
  7. 7.5% of 610 =
  8. 8.50% of 540 =
  9. 9.20% of 190 =
  10. 10.10% of 70 =
  11. 11.10% of 520 =
  12. 12.20% of 130 =
  13. 13.5% of 740 =
  14. 14.15% of 540 =
  15. 15.10% of 510 =
  16. 16.1% of 610 =
  17. 17.5% of 490 =
  18. 18.5% of 20 =
  19. 19.10% of 230 =
  20. 20.10% of 160 =
  21. 21.1% of 190 =
  22. 22.15% of 130 =
  23. 23.5% of 340 =
  24. 24.10% of 380 =
  25. 25.15% of 290 =
  26. 26.1% of 630 =
  27. 27.50% of 190 =
  28. 28.15% of 760 =
  29. 29.20% of 170 =
  30. 30.5% of 360 =
  31. 31.10% of 220 =
  32. 32.20% of 320 =
  33. 33.10% of 270 =
  34. 34.10% of 470 =
  35. 35.5% of 160 =
  36. 36.1% of 50 =
  37. 37.15% of 680 =
  38. 38.20% of 240 =
  39. 39.15% of 650 =
  40. 40.10% of 500 =

Answer key

  1. 70
  2. 222.5
  3. 72
  4. 6.5
  5. 0.6
  6. 1.4
  7. 30.5
  8. 270
  9. 38
  10. 7
  11. 52
  12. 26
  13. 37
  14. 81
  15. 51
  16. 6.1
  17. 24.5
  18. 1
  19. 23
  20. 16
  21. 1.9
  22. 19.5
  23. 17
  24. 38
  25. 43.5
  26. 6.3
  27. 95
  28. 114
  29. 34
  30. 18
  31. 22
  32. 64
  33. 27
  34. 47
  35. 8
  36. 0.5
  37. 102
  38. 48
  39. 97.5
  40. 50

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