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What Percent Is a of b Worksheet

Percentage lesson 7: What percent is one number of another? · Set 210 · 40 questions
TalentJR

How to work it out (Part over whole): Find the whole (the number after “of”) and the part. Percent = part ÷ whole × 100. Multiply the part by 100 first, then divide by the whole: 18 × 100 = 1800, and 1800 ÷ 72 = 25, so 25%.

NameDateTime takenScore ___ / 40
  1. 1.What percent of 40 is 16?
  2. 2.2 is what percent of 20?
  3. 3.30 is what percent of 120?
  4. 4.?% of 400 = 148
  5. 5.64 is what percent of 80?
  6. 6.What percent of 120 is 90?
  7. 7.?% of 500 = 30
  8. 8.What percent of 20 is 5?
  9. 9.?% of 400 = 168
  10. 10.What percent of 80 is 40?
  11. 11.?% of 60 = 36
  12. 12.?% of 400 = 40
  13. 13.What percent of 40 is 18?
  14. 14.What percent of 25 is 2?
  15. 15.268 is what percent of 400?
  16. 16.What percent of 250 is 205?
  17. 17.What percent of 20 is 2?
  18. 18.What percent of 150 is 138?
  19. 19.36 is what percent of 120?
  20. 20.What percent of 150 is 63?
  21. 21.What percent of 80 is 36?
  22. 22.?% of 40 = 14
  23. 23.?% of 25 = 13
  24. 24.What percent of 120 is 78?
  25. 25.170 is what percent of 250?
  26. 26.264 is what percent of 400?
  27. 27.6 is what percent of 120?
  28. 28.What percent of 400 is 20?
  29. 29.What percent of 150 is 141?
  30. 30.10 is what percent of 20?
  31. 31.What percent of 80 is 12?
  32. 32.What percent of 80 is 60?
  33. 33.What percent of 40 is 36?
  34. 34.465 is what percent of 500?
  35. 35.144 is what percent of 200?
  36. 36.116 is what percent of 400?
  37. 37.?% of 300 = 282
  38. 38.296 is what percent of 400?
  39. 39.?% of 150 = 111
  40. 40.What percent of 60 is 39?

Answer key

  1. 40
  2. 10
  3. 25
  4. 37
  5. 80
  6. 75
  7. 6
  8. 25
  9. 42
  10. 50
  11. 60
  12. 10
  13. 45
  14. 8
  15. 67
  16. 82
  17. 10
  18. 92
  19. 30
  20. 42
  21. 45
  22. 35
  23. 52
  24. 65
  25. 68
  26. 66
  27. 5
  28. 5
  29. 94
  30. 50
  31. 15
  32. 75
  33. 90
  34. 93
  35. 72
  36. 29
  37. 94
  38. 74
  39. 74
  40. 65

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