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Percentage Shortcuts Worksheet – 10%, 25%, 50%

Percentage lesson 5: 10%, 25% and 50% shortcuts · Set 35 · 40 questions
TalentJR

How to work it out (Halves and tenths): 10%: divide by 10. 1%: divide by 100. 50%: halve. 25%: halve, then halve again. 75% = 50% + 25%. 5%: half of 10%. 20%: double 10%.

NameDateTime takenScore ___ / 40
  1. 1.10% of 420 =
  2. 2.20% of 90 =
  3. 3.10% of 570 =
  4. 4.1% of 700 =
  5. 5.10% of 70 =
  6. 6.75% of 208 =
  7. 7.75% of 240 =
  8. 8.10% of 810 =
  9. 9.25% of 360 =
  10. 10.50% of 486 =
  11. 11.25% of 120 =
  12. 12.10% of 180 =
  13. 13.50% of 404 =
  14. 14.75% of 108 =
  15. 15.1% of 2600 =
  16. 16.20% of 225 =
  17. 17.1% of 2800 =
  18. 18.20% of 35 =
  19. 19.50% of 106 =
  20. 20.10% of 490 =
  21. 21.10% of 690 =
  22. 22.5% of 240 =
  23. 23.25% of 336 =
  24. 24.5% of 160 =
  25. 25.50% of 74 =
  26. 26.50% of 48 =
  27. 27.10% of 260 =
  28. 28.1% of 2200 =
  29. 29.25% of 188 =
  30. 30.25% of 172 =
  31. 31.50% of 384 =
  32. 32.75% of 168 =
  33. 33.5% of 440 =
  34. 34.75% of 104 =
  35. 35.50% of 448 =
  36. 36.10% of 40 =
  37. 37.1% of 800 =
  38. 38.75% of 32 =
  39. 39.20% of 355 =
  40. 40.5% of 60 =

Answer key

  1. 42
  2. 18
  3. 57
  4. 7
  5. 7
  6. 156
  7. 180
  8. 81
  9. 90
  10. 243
  11. 30
  12. 18
  13. 202
  14. 81
  15. 26
  16. 45
  17. 28
  18. 7
  19. 53
  20. 49
  21. 69
  22. 12
  23. 84
  24. 8
  25. 37
  26. 24
  27. 26
  28. 22
  29. 47
  30. 43
  31. 192
  32. 126
  33. 22
  34. 78
  35. 224
  36. 4
  37. 8
  38. 24
  39. 71
  40. 3

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