← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 29 · 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 460 =
  2. 2.5% of 560 =
  3. 3.50% of 460 =
  4. 4.1% of 380 =
  5. 5.10% of 400 =
  6. 6.15% of 280 =
  7. 7.20% of 160 =
  8. 8.25% of 760 =
  9. 9.1% of 830 =
  10. 10.25% of 610 =
  11. 11.25% of 90 =
  12. 12.50% of 60 =
  13. 13.15% of 70 =
  14. 14.50% of 590 =
  15. 15.5% of 760 =
  16. 16.20% of 240 =
  17. 17.50% of 560 =
  18. 18.25% of 710 =
  19. 19.10% of 220 =
  20. 20.25% of 520 =
  21. 21.10% of 90 =
  22. 22.20% of 670 =
  23. 23.50% of 550 =
  24. 24.5% of 560 =
  25. 25.15% of 50 =
  26. 26.1% of 50 =
  27. 27.10% of 310 =
  28. 28.15% of 840 =
  29. 29.15% of 390 =
  30. 30.1% of 320 =
  31. 31.1% of 580 =
  32. 32.15% of 740 =
  33. 33.15% of 880 =
  34. 34.10% of 440 =
  35. 35.50% of 530 =
  36. 36.15% of 60 =
  37. 37.50% of 600 =
  38. 38.50% of 320 =
  39. 39.15% of 400 =
  40. 40.15% of 630 =

Answer key

  1. 92
  2. 28
  3. 230
  4. 3.8
  5. 40
  6. 42
  7. 32
  8. 190
  9. 8.3
  10. 152.5
  11. 22.5
  12. 30
  13. 10.5
  14. 295
  15. 38
  16. 48
  17. 280
  18. 177.5
  19. 22
  20. 130
  21. 9
  22. 134
  23. 275
  24. 28
  25. 7.5
  26. 0.5
  27. 31
  28. 126
  29. 58.5
  30. 3.2
  31. 5.8
  32. 111
  33. 132
  34. 44
  35. 265
  36. 9
  37. 300
  38. 160
  39. 60
  40. 94.5

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