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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 270 · 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 7 in 53.762? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  2. 2.What is the value of the digit 3 in 36.248? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  3. 3.Which is the greatest: 0.81, 0.045, 0.8, 0.716? (a) 0.81 (b) 0.045 (c) 0.8 (d) 0.716
  4. 4.Which is the greatest: 0.075, 0.764, 0.8, 0.89? (a) 0.075 (b) 0.764 (c) 0.8 (d) 0.89
  5. 5.8.35 + 8.1 = ? (a) 9.16 (b) 16.45 (c) 16.35 (d) 16.55
  6. 6.5.35 + 4.7 = ? (a) 5.82 (b) 9.95 (c) 10.15 (d) 10.05
  7. 7.Which is the greatest: 0.8, 0.031, 0.746, 0.85? (a) 0.8 (b) 0.031 (c) 0.746 (d) 0.85
  8. 8.What is the value of the digit 9 in 96.238? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  9. 9.Which is the smallest: 0.57, 0.099, 0.5, 0.497? (a) 0.57 (b) 0.099 (c) 0.5 (d) 0.497
  10. 10.Which is the smallest: 0.026, 0.116, 0.2, 0.21? (a) 0.026 (b) 0.116 (c) 0.2 (d) 0.21
  11. 11.6.51 + 6.9 = ? (a) 13.31 (b) 13.51 (c) 13.41 (d) 7.2
  12. 12.5.66 + 3.1 = ? (a) 8.86 (b) 5.97 (c) 8.76 (d) 8.66
  13. 13.Which is the greatest: 0.73, 0.637, 0.038, 0.7? (a) 0.73 (b) 0.637 (c) 0.038 (d) 0.7
  14. 14.1.23 + 2.7 = ? (a) 3.83 (b) 1.5 (c) 4.03 (d) 3.93
  15. 15.3.74 + 6.1 = ? (a) 9.84 (b) 4.35 (c) 9.94 (d) 9.74
  16. 16.What is the value of the digit 4 in 41.973? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  17. 17.What is the value of the digit 3 in 13.476? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  18. 18.4.71 + 3.7 = ? (a) 5.08 (b) 8.51 (c) 8.41 (d) 8.31
  19. 19.5.67 + 3.1 = ? (a) 5.98 (b) 8.67 (c) 8.77 (d) 8.87
  20. 20.What is the value of the digit 6 in 26.198? (a) 0.6 (b) 0.06 (c) 60 (d) 6
  21. 21.What is the value of the digit 1 in 21.738? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  22. 22.What is the value of the digit 6 in 63.152? (a) 60 (b) 0.6 (c) 6 (d) 0.06
  23. 23.What is the value of the digit 4 in 38.542? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  24. 24.4.07 + 9.8 = ? (a) 13.77 (b) 13.97 (c) 13.87 (d) 5.05
  25. 25.1.51 + 8.7 = ? (a) 2.38 (b) 10.31 (c) 10.21 (d) 10.11
  26. 26.What is the value of the digit 3 in 29.431? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  27. 27.8.26 + 9.6 = ? (a) 9.22 (b) 17.86 (c) 17.96 (d) 17.76
  28. 28.What is the value of the digit 2 in 63.214? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  29. 29.8.49 + 2.1 = ? (a) 10.59 (b) 10.69 (c) 8.7 (d) 10.49
  30. 30.9.67 + 4.1 = ? (a) 13.87 (b) 10.08 (c) 13.77 (d) 13.67
  31. 31.Which is the smallest: 0.046, 0.523, 0.64, 0.6? (a) 0.046 (b) 0.523 (c) 0.64 (d) 0.6
  32. 32.Which is the smallest: 0.7, 0.691, 0.77, 0.069? (a) 0.7 (b) 0.691 (c) 0.77 (d) 0.069
  33. 33.What is the value of the digit 1 in 73.149? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  34. 34.3.02 + 2.1 = ? (a) 5.12 (b) 5.02 (c) 5.22 (d) 3.23
  35. 35.What is the value of the digit 3 in 38.249? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  36. 36.Which is the greatest: 0.079, 0.8, 0.794, 0.83? (a) 0.079 (b) 0.8 (c) 0.794 (d) 0.83
  37. 37.Which is the smallest: 0.7, 0.73, 0.032, 0.644? (a) 0.7 (b) 0.73 (c) 0.032 (d) 0.644
  38. 38.What is the value of the digit 3 in 39.814? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  39. 39.9.39 + 9.5 = ? (a) 18.79 (b) 18.99 (c) 18.89 (d) 10.34
  40. 40.What is the value of the digit 4 in 58.461? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4

Answer key

  1. 0.7
  2. 30
  3. 0.81
  4. 0.89
  5. 16.45
  6. 10.05
  7. 0.85
  8. 90
  9. 0.099
  10. 0.026
  11. 13.41
  12. 8.76
  13. 0.73
  14. 3.93
  15. 9.84
  16. 40
  17. 3
  18. 8.41
  19. 8.77
  20. 6
  21. 1
  22. 60
  23. 0.04
  24. 13.87
  25. 10.21
  26. 0.03
  27. 17.86
  28. 0.2
  29. 10.59
  30. 13.77
  31. 0.046
  32. 0.069
  33. 0.1
  34. 5.12
  35. 30
  36. 0.83
  37. 0.032
  38. 30
  39. 18.89
  40. 0.4

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