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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 181 · 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.What is the value of the digit 2 in 13.528? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  2. 2.Which is the greatest: 0.72, 0.7, 0.618, 0.077? (a) 0.72 (b) 0.7 (c) 0.618 (d) 0.077
  3. 3.Which is the smallest: 0.037, 0.228, 0.3, 0.37? (a) 0.037 (b) 0.228 (c) 0.3 (d) 0.37
  4. 4.6.67 + 1.1 = ? (a) 6.78 (b) 7.67 (c) 7.87 (d) 7.77
  5. 5.3.48 + 9.9 = ? (a) 13.38 (b) 4.47 (c) 13.28 (d) 13.48
  6. 6.1.92 + 4.6 = ? (a) 6.62 (b) 2.38 (c) 6.52 (d) 6.42
  7. 7.9.68 + 8.8 = ? (a) 18.48 (b) 18.38 (c) 18.58 (d) 10.56
  8. 8.2.34 + 2.3 = ? (a) 4.64 (b) 2.57 (c) 4.54 (d) 4.74
  9. 9.What is the value of the digit 4 in 34.729? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  10. 10.1.22 + 8.3 = ? (a) 2.05 (b) 9.62 (c) 9.52 (d) 9.42
  11. 11.3.53 + 6.1 = ? (a) 4.14 (b) 9.73 (c) 9.53 (d) 9.63
  12. 12.What is the value of the digit 5 in 14.528? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  13. 13.Which is the greatest: 0.88, 0.8, 0.041, 0.794? (a) 0.88 (b) 0.8 (c) 0.041 (d) 0.794
  14. 14.2.98 + 9.5 = ? (a) 12.48 (b) 12.58 (c) 12.38 (d) 3.93
  15. 15.What is the value of the digit 5 in 58.914? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  16. 16.8.32 + 8.4 = ? (a) 16.62 (b) 9.16 (c) 16.82 (d) 16.72
  17. 17.4.14 + 5.5 = ? (a) 9.54 (b) 9.74 (c) 9.64 (d) 4.69
  18. 18.What is the value of the digit 4 in 49.687? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  19. 19.Which is the greatest: 0.6, 0.517, 0.63, 0.018? (a) 0.6 (b) 0.517 (c) 0.63 (d) 0.018
  20. 20.5.33 + 6.7 = ? (a) 12.13 (b) 12.03 (c) 11.93 (d) 6
  21. 21.3.21 + 7.1 = ? (a) 10.31 (b) 3.92 (c) 10.21 (d) 10.41
  22. 22.6.52 + 9.9 = ? (a) 16.32 (b) 16.42 (c) 7.51 (d) 16.52
  23. 23.Which is the greatest: 0.089, 0.89, 0.788, 0.8? (a) 0.089 (b) 0.89 (c) 0.788 (d) 0.8
  24. 24.Which is the greatest: 0.192, 0.26, 0.2, 0.034? (a) 0.192 (b) 0.26 (c) 0.2 (d) 0.034
  25. 25.What is the value of the digit 8 in 28.517? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  26. 26.1.69 + 2.9 = ? (a) 4.59 (b) 4.69 (c) 4.49 (d) 1.98
  27. 27.5.24 + 3.6 = ? (a) 5.6 (b) 8.94 (c) 8.74 (d) 8.84
  28. 28.1.94 + 4.9 = ? (a) 6.74 (b) 6.84 (c) 6.94 (d) 2.43
  29. 29.7.81 + 3.3 = ? (a) 8.14 (b) 11.21 (c) 11.11 (d) 11.01
  30. 30.What is the value of the digit 3 in 53.472? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  31. 31.Which is the smallest: 0.66, 0.6, 0.583, 0.016? (a) 0.66 (b) 0.6 (c) 0.583 (d) 0.016
  32. 32.5.22 + 5.8 = ? (a) 11.12 (b) 10.92 (c) 5.8 (d) 11.02
  33. 33.2.91 + 1.8 = ? (a) 4.81 (b) 4.71 (c) 4.61 (d) 3.09
  34. 34.3.41 + 2.1 = ? (a) 3.62 (b) 5.51 (c) 5.41 (d) 5.61
  35. 35.8.02 + 9.7 = ? (a) 17.62 (b) 8.99 (c) 17.72 (d) 17.82
  36. 36.Which is the greatest: 0.8, 0.759, 0.046, 0.87? (a) 0.8 (b) 0.759 (c) 0.046 (d) 0.87
  37. 37.Which is the greatest: 0.031, 0.645, 0.75, 0.7? (a) 0.031 (b) 0.645 (c) 0.75 (d) 0.7
  38. 38.Which is the greatest: 0.58, 0.5, 0.078, 0.414? (a) 0.58 (b) 0.5 (c) 0.078 (d) 0.414
  39. 39.Which is the greatest: 0.061, 0.31, 0.3, 0.263? (a) 0.061 (b) 0.31 (c) 0.3 (d) 0.263
  40. 40.7.32 + 3.1 = ? (a) 10.52 (b) 10.42 (c) 7.63 (d) 10.32

Answer key

  1. 0.02
  2. 0.72
  3. 0.037
  4. 7.77
  5. 13.38
  6. 6.52
  7. 18.48
  8. 4.64
  9. 4
  10. 9.52
  11. 9.63
  12. 0.5
  13. 0.88
  14. 12.48
  15. 50
  16. 16.72
  17. 9.64
  18. 40
  19. 0.63
  20. 12.03
  21. 10.31
  22. 16.42
  23. 0.89
  24. 0.26
  25. 8
  26. 4.59
  27. 8.84
  28. 6.84
  29. 11.11
  30. 3
  31. 0.016
  32. 11.02
  33. 4.71
  34. 5.51
  35. 17.72
  36. 0.87
  37. 0.75
  38. 0.58
  39. 0.31
  40. 10.42

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