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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 577 · 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.Which is the greatest: 0.7, 0.613, 0.061, 0.78? (a) 0.7 (b) 0.613 (c) 0.061 (d) 0.78
  2. 2.3.54 + 7.8 = ? (a) 11.24 (b) 11.44 (c) 11.34 (d) 4.32
  3. 3.What is the value of the digit 8 in 81.374? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  4. 4.Which is the greatest: 0.55, 0.421, 0.047, 0.5? (a) 0.55 (b) 0.421 (c) 0.047 (d) 0.5
  5. 5.Which is the greatest: 0.519, 0.65, 0.077, 0.6? (a) 0.519 (b) 0.65 (c) 0.077 (d) 0.6
  6. 6.What is the value of the digit 5 in 94.576? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  7. 7.What is the value of the digit 4 in 89.574? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  8. 8.What is the value of the digit 9 in 56.198? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  9. 9.Which is the greatest: 0.098, 0.494, 0.57, 0.5? (a) 0.098 (b) 0.494 (c) 0.57 (d) 0.5
  10. 10.What is the value of the digit 5 in 89.145? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  11. 11.What is the value of the digit 7 in 41.735? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  12. 12.5.67 + 8.2 = ? (a) 6.49 (b) 13.77 (c) 13.87 (d) 13.97
  13. 13.Which is the smallest: 0.034, 0.487, 0.5, 0.52? (a) 0.034 (b) 0.487 (c) 0.5 (d) 0.52
  14. 14.5.98 + 7.7 = ? (a) 13.58 (b) 6.75 (c) 13.68 (d) 13.78
  15. 15.What is the value of the digit 5 in 48.751? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  16. 16.Which is the smallest: 0.7, 0.78, 0.098, 0.682? (a) 0.7 (b) 0.78 (c) 0.098 (d) 0.682
  17. 17.3.95 + 1.3 = ? (a) 5.35 (b) 4.08 (c) 5.25 (d) 5.15
  18. 18.Which is the greatest: 0.123, 0.26, 0.2, 0.065? (a) 0.123 (b) 0.26 (c) 0.2 (d) 0.065
  19. 19.Which is the greatest: 0.3, 0.214, 0.052, 0.39? (a) 0.3 (b) 0.214 (c) 0.052 (d) 0.39
  20. 20.What is the value of the digit 1 in 79.412? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  21. 21.What is the value of the digit 2 in 26.957? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  22. 22.5.81 + 2.9 = ? (a) 6.1 (b) 8.81 (c) 8.71 (d) 8.61
  23. 23.What is the value of the digit 2 in 27.853? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  24. 24.What is the value of the digit 5 in 19.652? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  25. 25.4.43 + 4.4 = ? (a) 8.73 (b) 8.83 (c) 8.93 (d) 4.87
  26. 26.5.38 + 8.7 = ? (a) 14.18 (b) 6.25 (c) 13.98 (d) 14.08
  27. 27.Which is the smallest: 0.632, 0.048, 0.74, 0.7? (a) 0.632 (b) 0.048 (c) 0.74 (d) 0.7
  28. 28.Which is the smallest: 0.052, 0.89, 0.793, 0.8? (a) 0.052 (b) 0.89 (c) 0.793 (d) 0.8
  29. 29.Which is the smallest: 0.49, 0.4, 0.063, 0.376? (a) 0.49 (b) 0.4 (c) 0.063 (d) 0.376
  30. 30.1.06 + 8.2 = ? (a) 1.88 (b) 9.36 (c) 9.26 (d) 9.16
  31. 31.5.01 + 1.3 = ? (a) 6.31 (b) 6.21 (c) 6.41 (d) 5.14
  32. 32.Which is the greatest: 0.8, 0.85, 0.064, 0.783? (a) 0.8 (b) 0.85 (c) 0.064 (d) 0.783
  33. 33.Which is the greatest: 0.5, 0.023, 0.53, 0.487? (a) 0.5 (b) 0.023 (c) 0.53 (d) 0.487
  34. 34.2.27 + 9.1 = ? (a) 3.18 (b) 11.27 (c) 11.47 (d) 11.37
  35. 35.Which is the smallest: 0.012, 0.61, 0.575, 0.6? (a) 0.012 (b) 0.61 (c) 0.575 (d) 0.6
  36. 36.What is the value of the digit 8 in 19.487? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  37. 37.4.19 + 3.9 = ? (a) 4.58 (b) 8.19 (c) 7.99 (d) 8.09
  38. 38.2.43 + 4.5 = ? (a) 7.03 (b) 2.88 (c) 6.93 (d) 6.83
  39. 39.What is the value of the digit 2 in 12.543? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  40. 40.Which is the smallest: 0.46, 0.4, 0.079, 0.313? (a) 0.46 (b) 0.4 (c) 0.079 (d) 0.313

Answer key

  1. 0.78
  2. 11.34
  3. 80
  4. 0.55
  5. 0.65
  6. 0.5
  7. 0.004
  8. 0.09
  9. 0.57
  10. 0.005
  11. 0.7
  12. 13.87
  13. 0.034
  14. 13.68
  15. 0.05
  16. 0.098
  17. 5.25
  18. 0.26
  19. 0.39
  20. 0.01
  21. 20
  22. 8.71
  23. 20
  24. 0.05
  25. 8.83
  26. 14.08
  27. 0.048
  28. 0.052
  29. 0.063
  30. 9.26
  31. 6.31
  32. 0.85
  33. 0.53
  34. 11.37
  35. 0.012
  36. 0.08
  37. 8.09
  38. 6.93
  39. 2
  40. 0.079

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