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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 254 · 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 3 in 53.168? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  2. 2.What is the value of the digit 1 in 71.542? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  3. 3.Which is the smallest: 0.2, 0.082, 0.182, 0.24? (a) 0.2 (b) 0.082 (c) 0.182 (d) 0.24
  4. 4.What is the value of the digit 8 in 97.628? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  5. 5.6.05 + 6.1 = ? (a) 12.25 (b) 12.15 (c) 6.66 (d) 12.05
  6. 6.What is the value of the digit 5 in 27.543? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  7. 7.Which is the smallest: 0.3, 0.32, 0.247, 0.063? (a) 0.3 (b) 0.32 (c) 0.247 (d) 0.063
  8. 8.What is the value of the digit 1 in 52.163? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  9. 9.Which is the greatest: 0.082, 0.8, 0.83, 0.779? (a) 0.082 (b) 0.8 (c) 0.83 (d) 0.779
  10. 10.4.21 + 9.5 = ? (a) 13.71 (b) 5.16 (c) 13.61 (d) 13.81
  11. 11.1.11 + 3.1 = ? (a) 1.42 (b) 4.11 (c) 4.31 (d) 4.21
  12. 12.Which is the greatest: 0.34, 0.263, 0.012, 0.3? (a) 0.34 (b) 0.263 (c) 0.012 (d) 0.3
  13. 13.6.61 + 2.6 = ? (a) 9.21 (b) 9.11 (c) 9.31 (d) 6.87
  14. 14.What is the value of the digit 6 in 69.185? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  15. 15.What is the value of the digit 8 in 69.842? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  16. 16.What is the value of the digit 8 in 98.541? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  17. 17.7.72 + 1.2 = ? (a) 8.82 (b) 9.02 (c) 7.84 (d) 8.92
  18. 18.What is the value of the digit 9 in 93.658? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  19. 19.1.51 + 2.9 = ? (a) 4.31 (b) 4.41 (c) 4.51 (d) 1.8
  20. 20.6.79 + 3.1 = ? (a) 9.79 (b) 9.89 (c) 7.1 (d) 9.99
  21. 21.Which is the greatest: 0.37, 0.289, 0.3, 0.057? (a) 0.37 (b) 0.289 (c) 0.3 (d) 0.057
  22. 22.5.47 + 4.8 = ? (a) 10.17 (b) 5.95 (c) 10.37 (d) 10.27
  23. 23.Which is the greatest: 0.41, 0.4, 0.373, 0.032? (a) 0.41 (b) 0.4 (c) 0.373 (d) 0.032
  24. 24.2.84 + 2.1 = ? (a) 4.94 (b) 5.04 (c) 3.05 (d) 4.84
  25. 25.7.71 + 6.7 = ? (a) 14.41 (b) 8.38 (c) 14.51 (d) 14.31
  26. 26.2.71 + 4.4 = ? (a) 7.01 (b) 7.21 (c) 7.11 (d) 3.15
  27. 27.7.41 + 6.9 = ? (a) 14.21 (b) 8.1 (c) 14.31 (d) 14.41
  28. 28.What is the value of the digit 5 in 69.523? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  29. 29.1.69 + 3.1 = ? (a) 4.79 (b) 2 (c) 4.89 (d) 4.69
  30. 30.9.91 + 5.1 = ? (a) 14.91 (b) 15.01 (c) 15.11 (d) 10.42
  31. 31.Which is the greatest: 0.056, 0.75, 0.7, 0.656? (a) 0.056 (b) 0.75 (c) 0.7 (d) 0.656
  32. 32.Which is the smallest: 0.6, 0.68, 0.584, 0.087? (a) 0.6 (b) 0.68 (c) 0.584 (d) 0.087
  33. 33.What is the value of the digit 8 in 48.637? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  34. 34.8.37 + 1.5 = ? (a) 8.52 (b) 9.77 (c) 9.97 (d) 9.87
  35. 35.Which is the smallest: 0.26, 0.068, 0.138, 0.2? (a) 0.26 (b) 0.068 (c) 0.138 (d) 0.2
  36. 36.What is the value of the digit 4 in 68.514? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  37. 37.Which is the smallest: 0.2, 0.095, 0.142, 0.22? (a) 0.2 (b) 0.095 (c) 0.142 (d) 0.22
  38. 38.7.68 + 5.4 = ? (a) 8.22 (b) 12.98 (c) 13.18 (d) 13.08
  39. 39.What is the value of the digit 2 in 18.249? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  40. 40.Which is the smallest: 0.448, 0.016, 0.52, 0.5? (a) 0.448 (b) 0.016 (c) 0.52 (d) 0.5

Answer key

  1. 3
  2. 1
  3. 0.082
  4. 0.008
  5. 12.15
  6. 0.5
  7. 0.063
  8. 0.1
  9. 0.83
  10. 13.71
  11. 4.21
  12. 0.34
  13. 9.21
  14. 60
  15. 0.8
  16. 8
  17. 8.92
  18. 90
  19. 4.41
  20. 9.89
  21. 0.37
  22. 10.27
  23. 0.41
  24. 4.94
  25. 14.41
  26. 7.11
  27. 14.31
  28. 0.5
  29. 4.79
  30. 15.01
  31. 0.75
  32. 0.087
  33. 8
  34. 9.87
  35. 0.068
  36. 0.004
  37. 0.095
  38. 13.08
  39. 0.2
  40. 0.016

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