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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 645 · 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 1 in 61.924? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  2. 2.6.62 + 3.6 = ? (a) 6.98 (b) 10.12 (c) 10.22 (d) 10.32
  3. 3.Which is the smallest: 0.054, 0.473, 0.52, 0.5? (a) 0.054 (b) 0.473 (c) 0.52 (d) 0.5
  4. 4.What is the value of the digit 7 in 45.167? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  5. 5.What is the value of the digit 4 in 21.347? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  6. 6.Which is the greatest: 0.6, 0.522, 0.016, 0.67? (a) 0.6 (b) 0.522 (c) 0.016 (d) 0.67
  7. 7.2.57 + 2.5 = ? (a) 5.07 (b) 4.97 (c) 2.82 (d) 5.17
  8. 8.What is the value of the digit 4 in 29.456? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  9. 9.What is the value of the digit 1 in 75.461? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  10. 10.4.08 + 9.1 = ? (a) 13.08 (b) 13.28 (c) 4.99 (d) 13.18
  11. 11.8.85 + 3.5 = ? (a) 9.2 (b) 12.25 (c) 12.45 (d) 12.35
  12. 12.4.44 + 2.6 = ? (a) 4.7 (b) 6.94 (c) 7.04 (d) 7.14
  13. 13.Which is the smallest: 0.032, 0.741, 0.83, 0.8? (a) 0.032 (b) 0.741 (c) 0.83 (d) 0.8
  14. 14.What is the value of the digit 7 in 94.712? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  15. 15.Which is the greatest: 0.162, 0.23, 0.024, 0.2? (a) 0.162 (b) 0.23 (c) 0.024 (d) 0.2
  16. 16.Which is the smallest: 0.71, 0.643, 0.7, 0.081? (a) 0.71 (b) 0.643 (c) 0.7 (d) 0.081
  17. 17.5.84 + 8.3 = ? (a) 14.04 (b) 14.24 (c) 14.14 (d) 6.67
  18. 18.Which is the greatest: 0.87, 0.8, 0.792, 0.077? (a) 0.87 (b) 0.8 (c) 0.792 (d) 0.077
  19. 19.8.91 + 4.6 = ? (a) 13.41 (b) 13.61 (c) 9.37 (d) 13.51
  20. 20.Which is the greatest: 0.238, 0.33, 0.3, 0.072? (a) 0.238 (b) 0.33 (c) 0.3 (d) 0.072
  21. 21.Which is the greatest: 0.056, 0.41, 0.4, 0.332? (a) 0.056 (b) 0.41 (c) 0.4 (d) 0.332
  22. 22.6.49 + 1.6 = ? (a) 6.65 (b) 8.09 (c) 8.19 (d) 7.99
  23. 23.1.36 + 8.3 = ? (a) 2.19 (b) 9.66 (c) 9.56 (d) 9.76
  24. 24.Which is the smallest: 0.671, 0.71, 0.7, 0.094? (a) 0.671 (b) 0.71 (c) 0.7 (d) 0.094
  25. 25.1.18 + 3.7 = ? (a) 4.78 (b) 4.88 (c) 1.55 (d) 4.98
  26. 26.Which is the smallest: 0.265, 0.34, 0.3, 0.087? (a) 0.265 (b) 0.34 (c) 0.3 (d) 0.087
  27. 27.Which is the greatest: 0.069, 0.576, 0.6, 0.65? (a) 0.069 (b) 0.576 (c) 0.6 (d) 0.65
  28. 28.Which is the greatest: 0.299, 0.073, 0.38, 0.3? (a) 0.299 (b) 0.073 (c) 0.38 (d) 0.3
  29. 29.3.11 + 4.5 = ? (a) 7.71 (b) 7.51 (c) 7.61 (d) 3.56
  30. 30.5.01 + 2.2 = ? (a) 7.11 (b) 7.31 (c) 7.21 (d) 5.23
  31. 31.Which is the smallest: 0.422, 0.031, 0.5, 0.58? (a) 0.422 (b) 0.031 (c) 0.5 (d) 0.58
  32. 32.What is the value of the digit 3 in 58.329? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  33. 33.What is the value of the digit 1 in 16.953? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  34. 34.Which is the greatest: 0.76, 0.059, 0.633, 0.7? (a) 0.76 (b) 0.059 (c) 0.633 (d) 0.7
  35. 35.What is the value of the digit 5 in 92.754? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  36. 36.What is the value of the digit 4 in 48.271? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  37. 37.Which is the greatest: 0.241, 0.088, 0.37, 0.3? (a) 0.241 (b) 0.088 (c) 0.37 (d) 0.3
  38. 38.What is the value of the digit 8 in 89.526? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  39. 39.1.13 + 4.1 = ? (a) 5.13 (b) 5.23 (c) 1.54 (d) 5.33
  40. 40.What is the value of the digit 8 in 57.894? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8

Answer key

  1. 1
  2. 10.22
  3. 0.054
  4. 0.007
  5. 0.04
  6. 0.67
  7. 5.07
  8. 0.4
  9. 0.001
  10. 13.18
  11. 12.35
  12. 7.04
  13. 0.032
  14. 0.7
  15. 0.23
  16. 0.081
  17. 14.14
  18. 0.87
  19. 13.51
  20. 0.33
  21. 0.41
  22. 8.09
  23. 9.66
  24. 0.094
  25. 4.88
  26. 0.087
  27. 0.65
  28. 0.38
  29. 7.61
  30. 7.21
  31. 0.031
  32. 0.3
  33. 10
  34. 0.76
  35. 0.05
  36. 40
  37. 0.37
  38. 80
  39. 5.23
  40. 0.8

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