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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 195 · 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. 1.3.87 + 6.6 = ? (a) 10.37 (b) 10.47 (c) 10.57 (d) 4.53
  2. 2.What is the value of the digit 3 in 24.936? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  3. 3.What is the value of the digit 3 in 31.542? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  4. 4.What is the value of the digit 9 in 24.619? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  5. 5.What is the value of the digit 4 in 48.793? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  6. 6.What is the value of the digit 3 in 27.813? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  7. 7.What is the value of the digit 4 in 17.948? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  8. 8.6.12 + 7.8 = ? (a) 13.92 (b) 14.02 (c) 6.9 (d) 13.82
  9. 9.Which is the smallest: 0.472, 0.5, 0.57, 0.016? (a) 0.472 (b) 0.5 (c) 0.57 (d) 0.016
  10. 10.What is the value of the digit 8 in 38.492? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  11. 11.5.94 + 4.8 = ? (a) 10.84 (b) 10.64 (c) 10.74 (d) 6.42
  12. 12.What is the value of the digit 4 in 93.467? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  13. 13.What is the value of the digit 7 in 76.293? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  14. 14.What is the value of the digit 4 in 59.847? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  15. 15.What is the value of the digit 5 in 15.246? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  16. 16.What is the value of the digit 2 in 51.246? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  17. 17.5.83 + 7.6 = ? (a) 13.43 (b) 13.53 (c) 6.59 (d) 13.33
  18. 18.5.07 + 7.8 = ? (a) 12.87 (b) 12.77 (c) 12.97 (d) 5.85
  19. 19.Which is the smallest: 0.064, 0.355, 0.46, 0.4? (a) 0.064 (b) 0.355 (c) 0.46 (d) 0.4
  20. 20.8.91 + 4.7 = ? (a) 9.38 (b) 13.51 (c) 13.71 (d) 13.61
  21. 21.7.51 + 2.2 = ? (a) 9.71 (b) 9.61 (c) 9.81 (d) 7.73
  22. 22.9.32 + 8.1 = ? (a) 10.13 (b) 17.42 (c) 17.52 (d) 17.32
  23. 23.Which is the smallest: 0.657, 0.7, 0.051, 0.72? (a) 0.657 (b) 0.7 (c) 0.051 (d) 0.72
  24. 24.4.86 + 2.3 = ? (a) 7.06 (b) 7.26 (c) 7.16 (d) 5.09
  25. 25.Which is the greatest: 0.85, 0.773, 0.011, 0.8? (a) 0.85 (b) 0.773 (c) 0.011 (d) 0.8
  26. 26.7.56 + 2.7 = ? (a) 10.16 (b) 7.83 (c) 10.26 (d) 10.36
  27. 27.What is the value of the digit 1 in 38.461? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  28. 28.Which is the greatest: 0.45, 0.4, 0.087, 0.323? (a) 0.45 (b) 0.4 (c) 0.087 (d) 0.323
  29. 29.Which is the smallest: 0.045, 0.742, 0.8, 0.83? (a) 0.045 (b) 0.742 (c) 0.8 (d) 0.83
  30. 30.1.11 + 1.7 = ? (a) 2.71 (b) 1.28 (c) 2.81 (d) 2.91
  31. 31.What is the value of the digit 9 in 21.698? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  32. 32.7.37 + 2.3 = ? (a) 7.6 (b) 9.57 (c) 9.67 (d) 9.77
  33. 33.What is the value of the digit 3 in 23.687? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  34. 34.Which is the greatest: 0.065, 0.31, 0.224, 0.3? (a) 0.065 (b) 0.31 (c) 0.224 (d) 0.3
  35. 35.9.09 + 4.4 = ? (a) 13.39 (b) 13.59 (c) 13.49 (d) 9.53
  36. 36.Which is the smallest: 0.33, 0.3, 0.082, 0.261? (a) 0.33 (b) 0.3 (c) 0.082 (d) 0.261
  37. 37.Which is the greatest: 0.64, 0.048, 0.6, 0.516? (a) 0.64 (b) 0.048 (c) 0.6 (d) 0.516
  38. 38.What is the value of the digit 5 in 54.162? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  39. 39.6.78 + 7.9 = ? (a) 14.58 (b) 7.57 (c) 14.68 (d) 14.78
  40. 40.Which is the smallest: 0.051, 0.317, 0.48, 0.4? (a) 0.051 (b) 0.317 (c) 0.48 (d) 0.4

Answer key

  1. 10.47
  2. 0.03
  3. 30
  4. 0.009
  5. 40
  6. 0.003
  7. 0.04
  8. 13.92
  9. 0.016
  10. 8
  11. 10.74
  12. 0.4
  13. 70
  14. 0.04
  15. 5
  16. 0.2
  17. 13.43
  18. 12.87
  19. 0.064
  20. 13.61
  21. 9.71
  22. 17.42
  23. 0.051
  24. 7.16
  25. 0.85
  26. 10.26
  27. 0.001
  28. 0.45
  29. 0.045
  30. 2.81
  31. 0.09
  32. 9.67
  33. 3
  34. 0.31
  35. 13.49
  36. 0.082
  37. 0.64
  38. 50
  39. 14.68
  40. 0.051

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