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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 873 · 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: 0.073, 0.67, 0.562, 0.6? (a) 0.073 (b) 0.67 (c) 0.562 (d) 0.6
  2. 2.1.32 + 6.1 = ? (a) 1.93 (b) 7.52 (c) 7.32 (d) 7.42
  3. 3.Which is the smallest: 0.3, 0.229, 0.012, 0.34? (a) 0.3 (b) 0.229 (c) 0.012 (d) 0.34
  4. 4.Which is the greatest: 0.73, 0.629, 0.7, 0.042? (a) 0.73 (b) 0.629 (c) 0.7 (d) 0.042
  5. 5.What is the value of the digit 5 in 48.125? (a) 5 (b) 0.005 (c) 0.05 (d) 0.5
  6. 6.Which is the greatest: 0.721, 0.053, 0.81, 0.8? (a) 0.721 (b) 0.053 (c) 0.81 (d) 0.8
  7. 7.Which is the greatest: 0.4, 0.047, 0.46, 0.349? (a) 0.4 (b) 0.047 (c) 0.46 (d) 0.349
  8. 8.8.05 + 8.7 = ? (a) 8.92 (b) 16.65 (c) 16.85 (d) 16.75
  9. 9.Which is the smallest: 0.2, 0.024, 0.131, 0.28? (a) 0.2 (b) 0.024 (c) 0.131 (d) 0.28
  10. 10.What is the value of the digit 1 in 79.614? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  11. 11.2.49 + 8.5 = ? (a) 10.89 (b) 10.99 (c) 11.09 (d) 3.34
  12. 12.3.88 + 5.6 = ? (a) 9.38 (b) 4.44 (c) 9.48 (d) 9.58
  13. 13.2.38 + 8.8 = ? (a) 3.26 (b) 11.08 (c) 11.28 (d) 11.18
  14. 14.Which is the smallest: 0.073, 0.5, 0.51, 0.412? (a) 0.073 (b) 0.5 (c) 0.51 (d) 0.412
  15. 15.Which is the smallest: 0.757, 0.096, 0.8, 0.87? (a) 0.757 (b) 0.096 (c) 0.8 (d) 0.87
  16. 16.6.11 + 3.1 = ? (a) 9.11 (b) 9.31 (c) 6.42 (d) 9.21
  17. 17.What is the value of the digit 9 in 39.517? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  18. 18.What is the value of the digit 8 in 67.842? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  19. 19.2.09 + 5.7 = ? (a) 7.69 (b) 7.89 (c) 7.79 (d) 2.66
  20. 20.8.31 + 4.5 = ? (a) 12.71 (b) 8.76 (c) 12.91 (d) 12.81
  21. 21.Which is the greatest: 0.042, 0.52, 0.423, 0.5? (a) 0.042 (b) 0.52 (c) 0.423 (d) 0.5
  22. 22.2.44 + 8.6 = ? (a) 3.3 (b) 11.14 (c) 11.04 (d) 10.94
  23. 23.1.17 + 5.1 = ? (a) 6.37 (b) 6.17 (c) 1.68 (d) 6.27
  24. 24.Which is the greatest: 0.082, 0.596, 0.68, 0.6? (a) 0.082 (b) 0.596 (c) 0.68 (d) 0.6
  25. 25.What is the value of the digit 9 in 98.624? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  26. 26.What is the value of the digit 4 in 52.341? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  27. 27.What is the value of the digit 3 in 17.362? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  28. 28.2.38 + 7.4 = ? (a) 9.78 (b) 9.68 (c) 9.88 (d) 3.12
  29. 29.6.07 + 9.2 = ? (a) 15.37 (b) 15.27 (c) 15.17 (d) 6.99
  30. 30.What is the value of the digit 2 in 68.239? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  31. 31.What is the value of the digit 1 in 63.941? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  32. 32.Which is the smallest: 0.789, 0.015, 0.8, 0.81? (a) 0.789 (b) 0.015 (c) 0.8 (d) 0.81
  33. 33.3.29 + 4.6 = ? (a) 7.89 (b) 3.75 (c) 7.99 (d) 7.79
  34. 34.Which is the smallest: 0.2, 0.22, 0.162, 0.087? (a) 0.2 (b) 0.22 (c) 0.162 (d) 0.087
  35. 35.Which is the greatest: 0.767, 0.8, 0.067, 0.81? (a) 0.767 (b) 0.8 (c) 0.067 (d) 0.81
  36. 36.3.62 + 5.3 = ? (a) 8.92 (b) 8.82 (c) 9.02 (d) 4.15
  37. 37.What is the value of the digit 1 in 48.915? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  38. 38.What is the value of the digit 7 in 51.743? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  39. 39.Which is the smallest: 0.024, 0.3, 0.36, 0.279? (a) 0.024 (b) 0.3 (c) 0.36 (d) 0.279
  40. 40.What is the value of the digit 9 in 98.136? (a) 90 (b) 0.09 (c) 9 (d) 0.9

Answer key

  1. 0.67
  2. 7.42
  3. 0.012
  4. 0.73
  5. 0.005
  6. 0.81
  7. 0.46
  8. 16.75
  9. 0.024
  10. 0.01
  11. 10.99
  12. 9.48
  13. 11.18
  14. 0.073
  15. 0.096
  16. 9.21
  17. 9
  18. 0.8
  19. 7.79
  20. 12.81
  21. 0.52
  22. 11.04
  23. 6.27
  24. 0.68
  25. 90
  26. 0.04
  27. 0.3
  28. 9.78
  29. 15.27
  30. 0.2
  31. 0.001
  32. 0.015
  33. 7.89
  34. 0.087
  35. 0.81
  36. 8.92
  37. 0.01
  38. 0.7
  39. 0.024
  40. 90

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