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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 279 · 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: 0.5, 0.58, 0.481, 0.017? (a) 0.5 (b) 0.58 (c) 0.481 (d) 0.017
  2. 2.Which is the greatest: 0.311, 0.41, 0.068, 0.4? (a) 0.311 (b) 0.41 (c) 0.068 (d) 0.4
  3. 3.Which is the greatest: 0.76, 0.043, 0.685, 0.7? (a) 0.76 (b) 0.043 (c) 0.685 (d) 0.7
  4. 4.1.11 + 7.8 = ? (a) 1.89 (b) 9.01 (c) 8.91 (d) 8.81
  5. 5.5.56 + 8.5 = ? (a) 13.96 (b) 14.06 (c) 14.16 (d) 6.41
  6. 6.Which is the greatest: 0.6, 0.581, 0.098, 0.69? (a) 0.6 (b) 0.581 (c) 0.098 (d) 0.69
  7. 7.What is the value of the digit 6 in 95.638? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  8. 8.What is the value of the digit 3 in 26.413? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  9. 9.What is the value of the digit 1 in 19.467? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  10. 10.1.96 + 3.1 = ? (a) 2.27 (b) 4.96 (c) 5.16 (d) 5.06
  11. 11.What is the value of the digit 9 in 74.391? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  12. 12.8.39 + 4.7 = ? (a) 13.19 (b) 13.09 (c) 12.99 (d) 8.86
  13. 13.7.13 + 7.2 = ? (a) 14.33 (b) 7.85 (c) 14.43 (d) 14.23
  14. 14.5.13 + 3.4 = ? (a) 8.43 (b) 8.63 (c) 8.53 (d) 5.47
  15. 15.Which is the smallest: 0.064, 0.655, 0.7, 0.74? (a) 0.064 (b) 0.655 (c) 0.7 (d) 0.74
  16. 16.1.97 + 3.4 = ? (a) 5.47 (b) 2.31 (c) 5.27 (d) 5.37
  17. 17.What is the value of the digit 2 in 26.891? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  18. 18.What is the value of the digit 2 in 14.326? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  19. 19.7.78 + 6.8 = ? (a) 8.46 (b) 14.58 (c) 14.48 (d) 14.68
  20. 20.Which is the greatest: 0.5, 0.411, 0.56, 0.036? (a) 0.5 (b) 0.411 (c) 0.56 (d) 0.036
  21. 21.1.11 + 7.5 = ? (a) 8.51 (b) 1.86 (c) 8.71 (d) 8.61
  22. 22.What is the value of the digit 8 in 49.583? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  23. 23.What is the value of the digit 7 in 27.361? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  24. 24.Which is the greatest: 0.348, 0.096, 0.43, 0.4? (a) 0.348 (b) 0.096 (c) 0.43 (d) 0.4
  25. 25.Which is the smallest: 0.091, 0.29, 0.155, 0.2? (a) 0.091 (b) 0.29 (c) 0.155 (d) 0.2
  26. 26.1.31 + 4.5 = ? (a) 5.71 (b) 5.81 (c) 1.76 (d) 5.91
  27. 27.5.46 + 6.8 = ? (a) 6.14 (b) 12.36 (c) 12.16 (d) 12.26
  28. 28.2.81 + 4.7 = ? (a) 7.41 (b) 7.51 (c) 7.61 (d) 3.28
  29. 29.What is the value of the digit 5 in 32.154? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  30. 30.Which is the greatest: 0.22, 0.2, 0.175, 0.036? (a) 0.22 (b) 0.2 (c) 0.175 (d) 0.036
  31. 31.Which is the greatest: 0.671, 0.054, 0.78, 0.7? (a) 0.671 (b) 0.054 (c) 0.78 (d) 0.7
  32. 32.What is the value of the digit 4 in 83.427? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  33. 33.8.41 + 3.1 = ? (a) 11.61 (b) 8.72 (c) 11.41 (d) 11.51
  34. 34.What is the value of the digit 4 in 74.321? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  35. 35.1.23 + 5.1 = ? (a) 6.23 (b) 1.74 (c) 6.43 (d) 6.33
  36. 36.9.41 + 7.3 = ? (a) 10.14 (b) 16.61 (c) 16.71 (d) 16.81
  37. 37.Which is the smallest: 0.2, 0.039, 0.21, 0.121? (a) 0.2 (b) 0.039 (c) 0.21 (d) 0.121
  38. 38.Which is the greatest: 0.055, 0.262, 0.3, 0.36? (a) 0.055 (b) 0.262 (c) 0.3 (d) 0.36
  39. 39.What is the value of the digit 2 in 16.425? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  40. 40.3.65 + 4.8 = ? (a) 8.35 (b) 4.13 (c) 8.45 (d) 8.55

Answer key

  1. 0.58
  2. 0.41
  3. 0.76
  4. 8.91
  5. 14.06
  6. 0.69
  7. 0.6
  8. 0.003
  9. 10
  10. 5.06
  11. 0.09
  12. 13.09
  13. 14.33
  14. 8.53
  15. 0.064
  16. 5.37
  17. 20
  18. 0.02
  19. 14.58
  20. 0.56
  21. 8.61
  22. 0.08
  23. 7
  24. 0.43
  25. 0.091
  26. 5.81
  27. 12.26
  28. 7.51
  29. 0.05
  30. 0.22
  31. 0.78
  32. 0.4
  33. 11.51
  34. 4
  35. 6.33
  36. 16.71
  37. 0.039
  38. 0.36
  39. 0.02
  40. 8.45

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