← Percentages in seconds lesson New set →

Percentage Worksheet – Mental Maths

Speed calculation lesson 12: Percentages in seconds · Set 958 · 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. 1.50% of 350 =
  2. 2.15% of 20 =
  3. 3.25% of 520 =
  4. 4.20% of 30 =
  5. 5.5% of 880 =
  6. 6.20% of 880 =
  7. 7.10% of 380 =
  8. 8.5% of 230 =
  9. 9.15% of 340 =
  10. 10.50% of 570 =
  11. 11.20% of 550 =
  12. 12.10% of 390 =
  13. 13.5% of 210 =
  14. 14.5% of 840 =
  15. 15.25% of 250 =
  16. 16.20% of 280 =
  17. 17.50% of 490 =
  18. 18.10% of 640 =
  19. 19.25% of 150 =
  20. 20.10% of 650 =
  21. 21.1% of 500 =
  22. 22.15% of 900 =
  23. 23.25% of 580 =
  24. 24.10% of 180 =
  25. 25.50% of 90 =
  26. 26.50% of 260 =
  27. 27.1% of 750 =
  28. 28.50% of 660 =
  29. 29.10% of 550 =
  30. 30.25% of 170 =
  31. 31.15% of 60 =
  32. 32.10% of 710 =
  33. 33.20% of 360 =
  34. 34.15% of 450 =
  35. 35.1% of 310 =
  36. 36.15% of 380 =
  37. 37.25% of 660 =
  38. 38.1% of 820 =
  39. 39.10% of 270 =
  40. 40.15% of 350 =

Answer key

  1. 175
  2. 3
  3. 130
  4. 6
  5. 44
  6. 176
  7. 38
  8. 11.5
  9. 51
  10. 285
  11. 110
  12. 39
  13. 10.5
  14. 42
  15. 62.5
  16. 56
  17. 245
  18. 64
  19. 37.5
  20. 65
  21. 5
  22. 135
  23. 145
  24. 18
  25. 45
  26. 130
  27. 7.5
  28. 330
  29. 55
  30. 42.5
  31. 9
  32. 71
  33. 72
  34. 67.5
  35. 3.1
  36. 57
  37. 165
  38. 8.2
  39. 27
  40. 52.5

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