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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 114 · 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 smallest: 0.367, 0.028, 0.46, 0.4? (a) 0.367 (b) 0.028 (c) 0.46 (d) 0.4
  2. 2.What is the value of the digit 9 in 52.691? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  3. 3.8.25 + 9.2 = ? (a) 9.17 (b) 17.55 (c) 17.35 (d) 17.45
  4. 4.5.56 + 4.5 = ? (a) 6.01 (b) 9.96 (c) 10.06 (d) 10.16
  5. 5.What is the value of the digit 2 in 41.295? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  6. 6.What is the value of the digit 6 in 65.794? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  7. 7.Which is the greatest: 0.44, 0.4, 0.368, 0.041? (a) 0.44 (b) 0.4 (c) 0.368 (d) 0.041
  8. 8.6.82 + 1.6 = ? (a) 8.52 (b) 6.98 (c) 8.42 (d) 8.32
  9. 9.What is the value of the digit 8 in 49.862? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  10. 10.What is the value of the digit 1 in 31.625? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  11. 11.5.97 + 6.5 = ? (a) 12.57 (b) 6.62 (c) 12.37 (d) 12.47
  12. 12.2.15 + 6.9 = ? (a) 8.95 (b) 9.15 (c) 2.84 (d) 9.05
  13. 13.Which is the smallest: 0.81, 0.8, 0.789, 0.089? (a) 0.81 (b) 0.8 (c) 0.789 (d) 0.089
  14. 14.Which is the smallest: 0.7, 0.627, 0.085, 0.75? (a) 0.7 (b) 0.627 (c) 0.085 (d) 0.75
  15. 15.Which is the smallest: 0.6, 0.67, 0.563, 0.029? (a) 0.6 (b) 0.67 (c) 0.563 (d) 0.029
  16. 16.1.19 + 6.6 = ? (a) 7.69 (b) 7.79 (c) 1.85 (d) 7.89
  17. 17.8.47 + 1.4 = ? (a) 9.87 (b) 9.97 (c) 8.61 (d) 9.77
  18. 18.5.24 + 5.1 = ? (a) 10.24 (b) 5.75 (c) 10.34 (d) 10.44
  19. 19.Which is the smallest: 0.234, 0.32, 0.3, 0.061? (a) 0.234 (b) 0.32 (c) 0.3 (d) 0.061
  20. 20.2.22 + 7.7 = ? (a) 10.02 (b) 9.92 (c) 9.82 (d) 2.99
  21. 21.Which is the greatest: 0.788, 0.032, 0.8, 0.88? (a) 0.788 (b) 0.032 (c) 0.8 (d) 0.88
  22. 22.Which is the smallest: 0.67, 0.566, 0.078, 0.6? (a) 0.67 (b) 0.566 (c) 0.078 (d) 0.6
  23. 23.9.98 + 1.9 = ? (a) 11.88 (b) 11.78 (c) 11.98 (d) 10.17
  24. 24.Which is the smallest: 0.7, 0.654, 0.79, 0.085? (a) 0.7 (b) 0.654 (c) 0.79 (d) 0.085
  25. 25.4.51 + 7.8 = ? (a) 12.31 (b) 12.21 (c) 5.29 (d) 12.41
  26. 26.1.61 + 2.4 = ? (a) 4.11 (b) 4.01 (c) 3.91 (d) 1.85
  27. 27.5.22 + 5.7 = ? (a) 10.92 (b) 11.02 (c) 10.82 (d) 5.79
  28. 28.What is the value of the digit 4 in 46.315? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  29. 29.What is the value of the digit 5 in 78.591? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  30. 30.Which is the greatest: 0.133, 0.073, 0.2, 0.26? (a) 0.133 (b) 0.073 (c) 0.2 (d) 0.26
  31. 31.3.53 + 2.5 = ? (a) 3.78 (b) 6.13 (c) 6.03 (d) 5.93
  32. 32.Which is the smallest: 0.7, 0.638, 0.027, 0.72? (a) 0.7 (b) 0.638 (c) 0.027 (d) 0.72
  33. 33.8.27 + 2.1 = ? (a) 10.37 (b) 10.27 (c) 10.47 (d) 8.48
  34. 34.4.54 + 7.5 = ? (a) 11.94 (b) 12.04 (c) 5.29 (d) 12.14
  35. 35.5.82 + 4.6 = ? (a) 6.28 (b) 10.52 (c) 10.42 (d) 10.32
  36. 36.4.38 + 7.8 = ? (a) 12.28 (b) 12.18 (c) 5.16 (d) 12.08
  37. 37.Which is the greatest: 0.049, 0.8, 0.83, 0.763? (a) 0.049 (b) 0.8 (c) 0.83 (d) 0.763
  38. 38.Which is the smallest: 0.3, 0.088, 0.35, 0.245? (a) 0.3 (b) 0.088 (c) 0.35 (d) 0.245
  39. 39.8.32 + 5.5 = ? (a) 13.72 (b) 13.82 (c) 8.87 (d) 13.92
  40. 40.7.54 + 4.1 = ? (a) 7.95 (b) 11.74 (c) 11.64 (d) 11.54

Answer key

  1. 0.028
  2. 0.09
  3. 17.45
  4. 10.06
  5. 0.2
  6. 60
  7. 0.44
  8. 8.42
  9. 0.8
  10. 1
  11. 12.47
  12. 9.05
  13. 0.089
  14. 0.085
  15. 0.029
  16. 7.79
  17. 9.87
  18. 10.34
  19. 0.061
  20. 9.92
  21. 0.88
  22. 0.078
  23. 11.88
  24. 0.085
  25. 12.31
  26. 4.01
  27. 10.92
  28. 40
  29. 0.5
  30. 0.26
  31. 6.03
  32. 0.027
  33. 10.37
  34. 12.04
  35. 10.42
  36. 12.18
  37. 0.83
  38. 0.088
  39. 13.82
  40. 11.64

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