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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 755 · 40 questions
TalentJR

How to solve it (Same number of places): Add zeros at the end so every decimal has the same number of places (0.5 = 0.500). Compare or add them like whole numbers, keeping the decimal points in a line. Place value after the point: tenths (0.1), hundredths (0.01), thousandths (0.001).

NameDateTime takenScore ___ / 40
  1. 1.Which is the greatest: 0.242, 0.3, 0.062, 0.37? (a) 0.242 (b) 0.3 (c) 0.062 (d) 0.37
  2. 2.What is the value of the digit 8 in 28.594? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  3. 3.4.25 + 1.3 = ? (a) 5.65 (b) 5.45 (c) 5.55 (d) 4.38
  4. 4.What is the value of the digit 5 in 52.973? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  5. 5.What is the value of the digit 5 in 34.591? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  6. 6.Which is the smallest: 0.013, 0.65, 0.542, 0.6? (a) 0.013 (b) 0.65 (c) 0.542 (d) 0.6
  7. 7.6.21 + 4.8 = ? (a) 11.11 (b) 6.69 (c) 11.01 (d) 10.91
  8. 8.What is the value of the digit 2 in 15.249? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  9. 9.5.38 + 4.5 = ? (a) 5.83 (b) 9.88 (c) 9.98 (d) 9.78
  10. 10.What is the value of the digit 2 in 84.529? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  11. 11.7.38 + 4.5 = ? (a) 7.83 (b) 11.98 (c) 11.78 (d) 11.88
  12. 12.6.94 + 8.1 = ? (a) 15.04 (b) 14.94 (c) 15.14 (d) 7.75
  13. 13.What is the value of the digit 3 in 74.931? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  14. 14.Which is the greatest: 0.45, 0.4, 0.032, 0.368? (a) 0.45 (b) 0.4 (c) 0.032 (d) 0.368
  15. 15.Which is the smallest: 0.8, 0.83, 0.731, 0.058? (a) 0.8 (b) 0.83 (c) 0.731 (d) 0.058
  16. 16.Which is the greatest: 0.23, 0.2, 0.135, 0.031? (a) 0.23 (b) 0.2 (c) 0.135 (d) 0.031
  17. 17.8.67 + 9.4 = ? (a) 9.61 (b) 18.17 (c) 17.97 (d) 18.07
  18. 18.Which is the greatest: 0.3, 0.052, 0.267, 0.39? (a) 0.3 (b) 0.052 (c) 0.267 (d) 0.39
  19. 19.Which is the greatest: 0.82, 0.8, 0.799, 0.019? (a) 0.82 (b) 0.8 (c) 0.799 (d) 0.019
  20. 20.8.69 + 6.1 = ? (a) 9.3 (b) 14.89 (c) 14.69 (d) 14.79
  21. 21.Which is the greatest: 0.075, 0.559, 0.6, 0.65? (a) 0.075 (b) 0.559 (c) 0.6 (d) 0.65
  22. 22.Which is the greatest: 0.683, 0.016, 0.7, 0.78? (a) 0.683 (b) 0.016 (c) 0.7 (d) 0.78
  23. 23.3.76 + 2.9 = ? (a) 4.05 (b) 6.66 (c) 6.76 (d) 6.56
  24. 24.What is the value of the digit 9 in 23.596? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  25. 25.What is the value of the digit 2 in 64.182? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  26. 26.Which is the greatest: 0.37, 0.087, 0.251, 0.3? (a) 0.37 (b) 0.087 (c) 0.251 (d) 0.3
  27. 27.What is the value of the digit 4 in 94.783? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  28. 28.What is the value of the digit 8 in 87.415? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  29. 29.What is the value of the digit 6 in 31.672? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  30. 30.7.59 + 9.7 = ? (a) 17.19 (b) 8.56 (c) 17.39 (d) 17.29
  31. 31.What is the value of the digit 1 in 43.681? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  32. 32.Which is the greatest: 0.2, 0.031, 0.166, 0.29? (a) 0.2 (b) 0.031 (c) 0.166 (d) 0.29
  33. 33.8.55 + 9.1 = ? (a) 9.46 (b) 17.65 (c) 17.75 (d) 17.55
  34. 34.What is the value of the digit 3 in 43.651? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  35. 35.5.79 + 1.4 = ? (a) 7.29 (b) 7.19 (c) 7.09 (d) 5.93
  36. 36.Which is the greatest: 0.66, 0.592, 0.6, 0.028? (a) 0.66 (b) 0.592 (c) 0.6 (d) 0.028
  37. 37.What is the value of the digit 7 in 63.724? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  38. 38.5.92 + 7.2 = ? (a) 13.12 (b) 13.22 (c) 13.02 (d) 6.64
  39. 39.6.33 + 5.5 = ? (a) 6.88 (b) 11.73 (c) 11.93 (d) 11.83
  40. 40.Which is the smallest: 0.129, 0.23, 0.062, 0.2? (a) 0.129 (b) 0.23 (c) 0.062 (d) 0.2

Answer key

  1. 0.37
  2. 8
  3. 5.55
  4. 50
  5. 0.5
  6. 0.013
  7. 11.01
  8. 0.2
  9. 9.88
  10. 0.02
  11. 11.88
  12. 15.04
  13. 0.03
  14. 0.45
  15. 0.058
  16. 0.23
  17. 18.07
  18. 0.39
  19. 0.82
  20. 14.79
  21. 0.65
  22. 0.78
  23. 6.66
  24. 0.09
  25. 0.002
  26. 0.37
  27. 4
  28. 80
  29. 0.6
  30. 17.29
  31. 0.001
  32. 0.29
  33. 17.65
  34. 3
  35. 7.19
  36. 0.66
  37. 0.7
  38. 13.12
  39. 11.83
  40. 0.062

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