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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 617 · 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 8 in 87.214? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  2. 2.Which is the smallest: 0.663, 0.073, 0.75, 0.7? (a) 0.663 (b) 0.073 (c) 0.75 (d) 0.7
  3. 3.What is the value of the digit 3 in 43.917? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  4. 4.3.84 + 7.9 = ? (a) 11.74 (b) 11.64 (c) 4.63 (d) 11.84
  5. 5.Which is the greatest: 0.6, 0.569, 0.64, 0.052? (a) 0.6 (b) 0.569 (c) 0.64 (d) 0.052
  6. 6.Which is the smallest: 0.7, 0.682, 0.028, 0.72? (a) 0.7 (b) 0.682 (c) 0.028 (d) 0.72
  7. 7.What is the value of the digit 6 in 64.793? (a) 0.06 (b) 0.6 (c) 6 (d) 60
  8. 8.3.61 + 5.4 = ? (a) 8.91 (b) 9.11 (c) 9.01 (d) 4.15
  9. 9.Which is the smallest: 0.8, 0.048, 0.764, 0.88? (a) 0.8 (b) 0.048 (c) 0.764 (d) 0.88
  10. 10.What is the value of the digit 5 in 57.214? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  11. 11.8.38 + 6.5 = ? (a) 9.03 (b) 14.98 (c) 14.78 (d) 14.88
  12. 12.What is the value of the digit 5 in 95.781? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  13. 13.Which is the smallest: 0.64, 0.551, 0.6, 0.017? (a) 0.64 (b) 0.551 (c) 0.6 (d) 0.017
  14. 14.Which is the smallest: 0.23, 0.172, 0.2, 0.015? (a) 0.23 (b) 0.172 (c) 0.2 (d) 0.015
  15. 15.What is the value of the digit 2 in 21.958? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  16. 16.2.48 + 6.1 = ? (a) 8.58 (b) 3.09 (c) 8.48 (d) 8.68
  17. 17.What is the value of the digit 6 in 76.413? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  18. 18.Which is the greatest: 0.727, 0.042, 0.8, 0.85? (a) 0.727 (b) 0.042 (c) 0.8 (d) 0.85
  19. 19.What is the value of the digit 4 in 47.586? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  20. 20.Which is the greatest: 0.226, 0.36, 0.084, 0.3? (a) 0.226 (b) 0.36 (c) 0.084 (d) 0.3
  21. 21.What is the value of the digit 1 in 15.847? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  22. 22.Which is the greatest: 0.4, 0.338, 0.45, 0.085? (a) 0.4 (b) 0.338 (c) 0.45 (d) 0.085
  23. 23.9.88 + 5.7 = ? (a) 15.68 (b) 10.45 (c) 15.48 (d) 15.58
  24. 24.5.32 + 7.4 = ? (a) 6.06 (b) 12.72 (c) 12.62 (d) 12.82
  25. 25.Which is the smallest: 0.68, 0.021, 0.6, 0.562? (a) 0.68 (b) 0.021 (c) 0.6 (d) 0.562
  26. 26.What is the value of the digit 1 in 96.152? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  27. 27.Which is the smallest: 0.263, 0.3, 0.061, 0.33? (a) 0.263 (b) 0.3 (c) 0.061 (d) 0.33
  28. 28.What is the value of the digit 6 in 79.618? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  29. 29.3.83 + 5.8 = ? (a) 9.63 (b) 9.73 (c) 4.41 (d) 9.53
  30. 30.What is the value of the digit 1 in 14.628? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  31. 31.Which is the greatest: 0.685, 0.77, 0.7, 0.055? (a) 0.685 (b) 0.77 (c) 0.7 (d) 0.055
  32. 32.7.65 + 5.9 = ? (a) 13.45 (b) 13.55 (c) 13.65 (d) 8.24
  33. 33.What is the value of the digit 8 in 18.795? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  34. 34.Which is the smallest: 0.36, 0.3, 0.277, 0.019? (a) 0.36 (b) 0.3 (c) 0.277 (d) 0.019
  35. 35.Which is the greatest: 0.2, 0.088, 0.21, 0.174? (a) 0.2 (b) 0.088 (c) 0.21 (d) 0.174
  36. 36.6.56 + 9.2 = ? (a) 15.66 (b) 15.86 (c) 15.76 (d) 7.48
  37. 37.Which is the greatest: 0.036, 0.777, 0.86, 0.8? (a) 0.036 (b) 0.777 (c) 0.86 (d) 0.8
  38. 38.2.09 + 5.1 = ? (a) 7.19 (b) 2.6 (c) 7.29 (d) 7.09
  39. 39.What is the value of the digit 7 in 87.296? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  40. 40.What is the value of the digit 3 in 61.532? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3

Answer key

  1. 80
  2. 0.073
  3. 3
  4. 11.74
  5. 0.64
  6. 0.028
  7. 60
  8. 9.01
  9. 0.048
  10. 50
  11. 14.88
  12. 5
  13. 0.017
  14. 0.015
  15. 20
  16. 8.58
  17. 6
  18. 0.85
  19. 40
  20. 0.36
  21. 10
  22. 0.45
  23. 15.58
  24. 12.72
  25. 0.021
  26. 0.1
  27. 0.061
  28. 0.6
  29. 9.63
  30. 10
  31. 0.77
  32. 13.55
  33. 8
  34. 0.019
  35. 0.21
  36. 15.76
  37. 0.86
  38. 7.19
  39. 7
  40. 0.03

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