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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 340 · 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 9 in 32.694? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  2. 2.What is the value of the digit 7 in 29.617? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  3. 3.What is the value of the digit 9 in 35.249? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  4. 4.What is the value of the digit 4 in 61.435? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  5. 5.2.39 + 2.3 = ? (a) 4.59 (b) 4.79 (c) 4.69 (d) 2.62
  6. 6.What is the value of the digit 8 in 21.783? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  7. 7.What is the value of the digit 7 in 36.724? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  8. 8.Which is the smallest: 0.71, 0.663, 0.068, 0.7? (a) 0.71 (b) 0.663 (c) 0.068 (d) 0.7
  9. 9.What is the value of the digit 7 in 19.437? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  10. 10.What is the value of the digit 1 in 45.183? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  11. 11.What is the value of the digit 8 in 24.839? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  12. 12.Which is the greatest: 0.199, 0.26, 0.026, 0.2? (a) 0.199 (b) 0.26 (c) 0.026 (d) 0.2
  13. 13.What is the value of the digit 2 in 87.152? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  14. 14.1.58 + 2.4 = ? (a) 3.98 (b) 4.08 (c) 3.88 (d) 1.82
  15. 15.4.04 + 7.9 = ? (a) 12.04 (b) 11.84 (c) 11.94 (d) 4.83
  16. 16.9.91 + 6.2 = ? (a) 16.01 (b) 16.11 (c) 10.53 (d) 16.21
  17. 17.1.13 + 7.1 = ? (a) 1.84 (b) 8.33 (c) 8.13 (d) 8.23
  18. 18.What is the value of the digit 7 in 27.365? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  19. 19.3.28 + 5.1 = ? (a) 3.79 (b) 8.48 (c) 8.28 (d) 8.38
  20. 20.Which is the greatest: 0.47, 0.4, 0.035, 0.333? (a) 0.47 (b) 0.4 (c) 0.035 (d) 0.333
  21. 21.Which is the greatest: 0.34, 0.033, 0.3, 0.213? (a) 0.34 (b) 0.033 (c) 0.3 (d) 0.213
  22. 22.What is the value of the digit 7 in 27.385? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  23. 23.Which is the greatest: 0.031, 0.642, 0.72, 0.7? (a) 0.031 (b) 0.642 (c) 0.72 (d) 0.7
  24. 24.6.34 + 3.2 = ? (a) 9.44 (b) 6.66 (c) 9.54 (d) 9.64
  25. 25.Which is the greatest: 0.075, 0.33, 0.217, 0.3? (a) 0.075 (b) 0.33 (c) 0.217 (d) 0.3
  26. 26.What is the value of the digit 8 in 46.785? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  27. 27.1.64 + 2.3 = ? (a) 4.04 (b) 1.87 (c) 3.94 (d) 3.84
  28. 28.What is the value of the digit 7 in 24.678? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  29. 29.Which is the smallest: 0.69, 0.569, 0.097, 0.6? (a) 0.69 (b) 0.569 (c) 0.097 (d) 0.6
  30. 30.8.88 + 3.8 = ? (a) 12.58 (b) 12.78 (c) 9.26 (d) 12.68
  31. 31.What is the value of the digit 5 in 57.438? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  32. 32.What is the value of the digit 9 in 29.784? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  33. 33.What is the value of the digit 6 in 12.683? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  34. 34.2.52 + 1.1 = ? (a) 2.63 (b) 3.52 (c) 3.72 (d) 3.62
  35. 35.What is the value of the digit 9 in 25.679? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  36. 36.8.38 + 1.4 = ? (a) 9.88 (b) 9.78 (c) 8.52 (d) 9.68
  37. 37.What is the value of the digit 4 in 42.138? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  38. 38.Which is the greatest: 0.6, 0.572, 0.021, 0.63? (a) 0.6 (b) 0.572 (c) 0.021 (d) 0.63
  39. 39.3.08 + 5.5 = ? (a) 8.48 (b) 3.63 (c) 8.58 (d) 8.68
  40. 40.8.34 + 2.6 = ? (a) 10.84 (b) 10.94 (c) 8.6 (d) 11.04

Answer key

  1. 0.09
  2. 0.007
  3. 0.009
  4. 0.4
  5. 4.69
  6. 0.08
  7. 0.7
  8. 0.068
  9. 0.007
  10. 0.1
  11. 0.8
  12. 0.26
  13. 0.002
  14. 3.98
  15. 11.94
  16. 16.11
  17. 8.23
  18. 7
  19. 8.38
  20. 0.47
  21. 0.34
  22. 7
  23. 0.72
  24. 9.54
  25. 0.33
  26. 0.08
  27. 3.94
  28. 0.07
  29. 0.097
  30. 12.68
  31. 50
  32. 9
  33. 0.6
  34. 3.62
  35. 0.009
  36. 9.78
  37. 40
  38. 0.63
  39. 8.58
  40. 10.94

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