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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 285 · 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, 0.72, 0.082, 0.644? (a) 0.7 (b) 0.72 (c) 0.082 (d) 0.644
  2. 2.Which is the greatest: 0.021, 0.583, 0.6, 0.68? (a) 0.021 (b) 0.583 (c) 0.6 (d) 0.68
  3. 3.Which is the smallest: 0.264, 0.3, 0.35, 0.054? (a) 0.264 (b) 0.3 (c) 0.35 (d) 0.054
  4. 4.2.55 + 4.7 = ? (a) 7.35 (b) 7.25 (c) 7.15 (d) 3.02
  5. 5.Which is the smallest: 0.29, 0.017, 0.2, 0.129? (a) 0.29 (b) 0.017 (c) 0.2 (d) 0.129
  6. 6.1.41 + 2.1 = ? (a) 3.51 (b) 3.41 (c) 1.62 (d) 3.61
  7. 7.What is the value of the digit 9 in 14.793? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  8. 8.Which is the smallest: 0.443, 0.54, 0.072, 0.5? (a) 0.443 (b) 0.54 (c) 0.072 (d) 0.5
  9. 9.4.69 + 3.1 = ? (a) 7.69 (b) 5 (c) 7.89 (d) 7.79
  10. 10.What is the value of the digit 1 in 51.268? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  11. 11.What is the value of the digit 9 in 13.469? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  12. 12.What is the value of the digit 5 in 52.374? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  13. 13.What is the value of the digit 9 in 89.237? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  14. 14.9.85 + 8.6 = ? (a) 10.71 (b) 18.55 (c) 18.35 (d) 18.45
  15. 15.What is the value of the digit 5 in 31.524? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  16. 16.Which is the smallest: 0.655, 0.7, 0.78, 0.099? (a) 0.655 (b) 0.7 (c) 0.78 (d) 0.099
  17. 17.What is the value of the digit 4 in 74.152? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  18. 18.What is the value of the digit 5 in 98.754? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  19. 19.9.71 + 9.2 = ? (a) 18.81 (b) 10.63 (c) 18.91 (d) 19.01
  20. 20.Which is the smallest: 0.087, 0.6, 0.63, 0.546? (a) 0.087 (b) 0.6 (c) 0.63 (d) 0.546
  21. 21.6.56 + 4.8 = ? (a) 11.36 (b) 11.46 (c) 11.26 (d) 7.04
  22. 22.What is the value of the digit 4 in 49.215? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  23. 23.Which is the greatest: 0.43, 0.4, 0.361, 0.041? (a) 0.43 (b) 0.4 (c) 0.361 (d) 0.041
  24. 24.7.23 + 5.2 = ? (a) 12.53 (b) 12.33 (c) 7.75 (d) 12.43
  25. 25.8.41 + 4.9 = ? (a) 8.9 (b) 13.21 (c) 13.31 (d) 13.41
  26. 26.What is the value of the digit 1 in 81.453? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  27. 27.Which is the smallest: 0.344, 0.46, 0.084, 0.4? (a) 0.344 (b) 0.46 (c) 0.084 (d) 0.4
  28. 28.8.55 + 4.4 = ? (a) 8.99 (b) 12.85 (c) 12.95 (d) 13.05
  29. 29.3.01 + 4.5 = ? (a) 7.61 (b) 7.51 (c) 3.46 (d) 7.41
  30. 30.2.69 + 3.8 = ? (a) 3.07 (b) 6.39 (c) 6.49 (d) 6.59
  31. 31.Which is the smallest: 0.8, 0.719, 0.81, 0.061? (a) 0.8 (b) 0.719 (c) 0.81 (d) 0.061
  32. 32.8.11 + 6.9 = ? (a) 14.91 (b) 15.01 (c) 8.8 (d) 15.11
  33. 33.8.87 + 1.4 = ? (a) 10.37 (b) 10.27 (c) 10.17 (d) 9.01
  34. 34.Which is the greatest: 0.48, 0.353, 0.061, 0.4? (a) 0.48 (b) 0.353 (c) 0.061 (d) 0.4
  35. 35.What is the value of the digit 8 in 61.382? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  36. 36.Which is the greatest: 0.219, 0.35, 0.079, 0.3? (a) 0.219 (b) 0.35 (c) 0.079 (d) 0.3
  37. 37.What is the value of the digit 1 in 34.516? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  38. 38.Which is the smallest: 0.513, 0.65, 0.075, 0.6? (a) 0.513 (b) 0.65 (c) 0.075 (d) 0.6
  39. 39.5.91 + 4.9 = ? (a) 10.81 (b) 10.91 (c) 6.4 (d) 10.71
  40. 40.8.57 + 1.2 = ? (a) 9.87 (b) 8.69 (c) 9.67 (d) 9.77

Answer key

  1. 0.72
  2. 0.68
  3. 0.054
  4. 7.25
  5. 0.017
  6. 3.51
  7. 0.09
  8. 0.072
  9. 7.79
  10. 1
  11. 0.009
  12. 50
  13. 9
  14. 18.45
  15. 0.5
  16. 0.099
  17. 4
  18. 0.05
  19. 18.91
  20. 0.087
  21. 11.36
  22. 40
  23. 0.43
  24. 12.43
  25. 13.31
  26. 1
  27. 0.084
  28. 12.95
  29. 7.51
  30. 6.49
  31. 0.061
  32. 15.01
  33. 10.27
  34. 0.48
  35. 0.08
  36. 0.35
  37. 0.01
  38. 0.075
  39. 10.81
  40. 9.77

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