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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 158 · 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 59.328? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  2. 2.8.06 + 8.5 = ? (a) 8.91 (b) 16.66 (c) 16.46 (d) 16.56
  3. 3.Which is the smallest: 0.83, 0.8, 0.056, 0.779? (a) 0.83 (b) 0.8 (c) 0.056 (d) 0.779
  4. 4.Which is the greatest: 0.415, 0.5, 0.59, 0.061? (a) 0.415 (b) 0.5 (c) 0.59 (d) 0.061
  5. 5.What is the value of the digit 9 in 75.946? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  6. 6.6.23 + 8.5 = ? (a) 14.83 (b) 7.08 (c) 14.63 (d) 14.73
  7. 7.What is the value of the digit 5 in 75.921? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  8. 8.1.46 + 1.2 = ? (a) 2.76 (b) 2.56 (c) 1.58 (d) 2.66
  9. 9.9.51 + 5.8 = ? (a) 15.41 (b) 15.21 (c) 15.31 (d) 10.09
  10. 10.What is the value of the digit 3 in 31.689? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  11. 11.What is the value of the digit 8 in 92.781? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  12. 12.What is the value of the digit 8 in 26.837? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  13. 13.Which is the smallest: 0.095, 0.62, 0.6, 0.556? (a) 0.095 (b) 0.62 (c) 0.6 (d) 0.556
  14. 14.What is the value of the digit 2 in 26.148? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  15. 15.What is the value of the digit 5 in 52.367? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  16. 16.5.59 + 9.1 = ? (a) 6.5 (b) 14.69 (c) 14.79 (d) 14.59
  17. 17.What is the value of the digit 4 in 14.237? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  18. 18.Which is the greatest: 0.2, 0.073, 0.29, 0.136? (a) 0.2 (b) 0.073 (c) 0.29 (d) 0.136
  19. 19.Which is the greatest: 0.256, 0.33, 0.3, 0.036? (a) 0.256 (b) 0.33 (c) 0.3 (d) 0.036
  20. 20.1.21 + 5.4 = ? (a) 6.61 (b) 6.51 (c) 6.71 (d) 1.75
  21. 21.3.07 + 5.7 = ? (a) 8.67 (b) 3.64 (c) 8.77 (d) 8.87
  22. 22.Which is the smallest: 0.024, 0.28, 0.2, 0.185? (a) 0.024 (b) 0.28 (c) 0.2 (d) 0.185
  23. 23.What is the value of the digit 2 in 21.738? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  24. 24.2.08 + 2.4 = ? (a) 4.38 (b) 4.48 (c) 2.32 (d) 4.58
  25. 25.4.31 + 3.4 = ? (a) 7.71 (b) 4.65 (c) 7.61 (d) 7.81
  26. 26.4.42 + 7.2 = ? (a) 11.72 (b) 11.52 (c) 11.62 (d) 5.14
  27. 27.7.89 + 8.7 = ? (a) 16.59 (b) 8.76 (c) 16.69 (d) 16.49
  28. 28.Which is the smallest: 0.5, 0.043, 0.53, 0.447? (a) 0.5 (b) 0.043 (c) 0.53 (d) 0.447
  29. 29.Which is the smallest: 0.2, 0.014, 0.24, 0.114? (a) 0.2 (b) 0.014 (c) 0.24 (d) 0.114
  30. 30.What is the value of the digit 7 in 51.738? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  31. 31.5.01 + 2.8 = ? (a) 7.71 (b) 5.29 (c) 7.91 (d) 7.81
  32. 32.5.57 + 3.3 = ? (a) 8.77 (b) 8.87 (c) 8.97 (d) 5.9
  33. 33.2.84 + 5.1 = ? (a) 3.35 (b) 7.94 (c) 7.84 (d) 8.04
  34. 34.What is the value of the digit 6 in 83.624? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  35. 35.Which is the greatest: 0.89, 0.799, 0.019, 0.8? (a) 0.89 (b) 0.799 (c) 0.019 (d) 0.8
  36. 36.What is the value of the digit 1 in 34.271? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  37. 37.What is the value of the digit 4 in 73.541? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  38. 38.3.46 + 8.1 = ? (a) 11.56 (b) 11.66 (c) 11.46 (d) 4.27
  39. 39.1.55 + 9.6 = ? (a) 11.15 (b) 11.25 (c) 11.05 (d) 2.51
  40. 40.What is the value of the digit 3 in 83.467? (a) 0.03 (b) 30 (c) 0.3 (d) 3

Answer key

  1. 0.02
  2. 16.56
  3. 0.056
  4. 0.59
  5. 0.9
  6. 14.73
  7. 5
  8. 2.66
  9. 15.31
  10. 30
  11. 0.08
  12. 0.8
  13. 0.095
  14. 20
  15. 50
  16. 14.69
  17. 4
  18. 0.29
  19. 0.33
  20. 6.61
  21. 8.77
  22. 0.024
  23. 20
  24. 4.48
  25. 7.71
  26. 11.62
  27. 16.59
  28. 0.043
  29. 0.014
  30. 0.7
  31. 7.81
  32. 8.87
  33. 7.94
  34. 0.6
  35. 0.89
  36. 0.001
  37. 0.04
  38. 11.56
  39. 11.15
  40. 3

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