← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 168 · 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 440 =
  2. 2.1% of 590 =
  3. 3.5% of 900 =
  4. 4.10% of 490 =
  5. 5.10% of 340 =
  6. 6.5% of 600 =
  7. 7.15% of 210 =
  8. 8.50% of 530 =
  9. 9.20% of 810 =
  10. 10.5% of 490 =
  11. 11.5% of 660 =
  12. 12.15% of 410 =
  13. 13.20% of 650 =
  14. 14.10% of 340 =
  15. 15.25% of 260 =
  16. 16.20% of 250 =
  17. 17.1% of 220 =
  18. 18.1% of 860 =
  19. 19.15% of 850 =
  20. 20.25% of 450 =
  21. 21.1% of 120 =
  22. 22.25% of 760 =
  23. 23.15% of 260 =
  24. 24.20% of 190 =
  25. 25.50% of 390 =
  26. 26.1% of 740 =
  27. 27.25% of 150 =
  28. 28.1% of 380 =
  29. 29.10% of 720 =
  30. 30.15% of 280 =
  31. 31.1% of 830 =
  32. 32.5% of 260 =
  33. 33.5% of 700 =
  34. 34.5% of 350 =
  35. 35.10% of 100 =
  36. 36.25% of 680 =
  37. 37.15% of 230 =
  38. 38.25% of 280 =
  39. 39.20% of 320 =
  40. 40.1% of 840 =

Answer key

  1. 88
  2. 5.9
  3. 45
  4. 49
  5. 34
  6. 30
  7. 31.5
  8. 265
  9. 162
  10. 24.5
  11. 33
  12. 61.5
  13. 130
  14. 34
  15. 65
  16. 50
  17. 2.2
  18. 8.6
  19. 127.5
  20. 112.5
  21. 1.2
  22. 190
  23. 39
  24. 38
  25. 195
  26. 7.4
  27. 37.5
  28. 3.8
  29. 72
  30. 42
  31. 8.3
  32. 13
  33. 35
  34. 17.5
  35. 10
  36. 170
  37. 34.5
  38. 70
  39. 64
  40. 8.4

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