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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 464 · 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: 0.042, 0.119, 0.2, 0.22? (a) 0.042 (b) 0.119 (c) 0.2 (d) 0.22
  2. 2.What is the value of the digit 2 in 74.392? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  3. 3.What is the value of the digit 6 in 74.681? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  4. 4.Which is the greatest: 0.023, 0.269, 0.3, 0.35? (a) 0.023 (b) 0.269 (c) 0.3 (d) 0.35
  5. 5.5.28 + 3.1 = ? (a) 5.59 (b) 8.48 (c) 8.38 (d) 8.28
  6. 6.Which is the greatest: 0.016, 0.22, 0.2, 0.159? (a) 0.016 (b) 0.22 (c) 0.2 (d) 0.159
  7. 7.9.22 + 2.7 = ? (a) 11.82 (b) 11.92 (c) 12.02 (d) 9.49
  8. 8.Which is the greatest: 0.023, 0.81, 0.8, 0.776? (a) 0.023 (b) 0.81 (c) 0.8 (d) 0.776
  9. 9.What is the value of the digit 8 in 98.314? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  10. 10.Which is the greatest: 0.286, 0.043, 0.39, 0.3? (a) 0.286 (b) 0.043 (c) 0.39 (d) 0.3
  11. 11.Which is the smallest: 0.613, 0.087, 0.79, 0.7? (a) 0.613 (b) 0.087 (c) 0.79 (d) 0.7
  12. 12.4.18 + 6.2 = ? (a) 10.38 (b) 10.28 (c) 4.8 (d) 10.48
  13. 13.2.79 + 4.6 = ? (a) 7.49 (b) 7.29 (c) 7.39 (d) 3.25
  14. 14.Which is the smallest: 0.84, 0.023, 0.711, 0.8? (a) 0.84 (b) 0.023 (c) 0.711 (d) 0.8
  15. 15.Which is the greatest: 0.44, 0.321, 0.027, 0.4? (a) 0.44 (b) 0.321 (c) 0.027 (d) 0.4
  16. 16.1.34 + 2.1 = ? (a) 3.54 (b) 3.44 (c) 3.34 (d) 1.55
  17. 17.1.44 + 2.3 = ? (a) 3.64 (b) 3.74 (c) 3.84 (d) 1.67
  18. 18.Which is the greatest: 0.112, 0.23, 0.073, 0.2? (a) 0.112 (b) 0.23 (c) 0.073 (d) 0.2
  19. 19.9.29 + 3.4 = ? (a) 9.63 (b) 12.79 (c) 12.69 (d) 12.59
  20. 20.1.66 + 3.3 = ? (a) 4.96 (b) 4.86 (c) 1.99 (d) 5.06
  21. 21.Which is the greatest: 0.036, 0.6, 0.69, 0.565? (a) 0.036 (b) 0.6 (c) 0.69 (d) 0.565
  22. 22.Which is the smallest: 0.669, 0.77, 0.041, 0.7? (a) 0.669 (b) 0.77 (c) 0.041 (d) 0.7
  23. 23.What is the value of the digit 2 in 35.821? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  24. 24.9.33 + 1.9 = ? (a) 11.33 (b) 11.13 (c) 9.52 (d) 11.23
  25. 25.What is the value of the digit 5 in 57.329? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  26. 26.What is the value of the digit 2 in 15.872? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  27. 27.9.79 + 3.4 = ? (a) 13.09 (b) 10.13 (c) 13.29 (d) 13.19
  28. 28.Which is the smallest: 0.321, 0.4, 0.43, 0.078? (a) 0.321 (b) 0.4 (c) 0.43 (d) 0.078
  29. 29.What is the value of the digit 6 in 36.524? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  30. 30.What is the value of the digit 3 in 39.861? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  31. 31.3.71 + 4.1 = ? (a) 4.12 (b) 7.71 (c) 7.81 (d) 7.91
  32. 32.6.41 + 9.8 = ? (a) 16.11 (b) 16.21 (c) 16.31 (d) 7.39
  33. 33.What is the value of the digit 2 in 63.842? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  34. 34.6.26 + 7.5 = ? (a) 13.86 (b) 7.01 (c) 13.66 (d) 13.76
  35. 35.Which is the smallest: 0.329, 0.013, 0.4, 0.48? (a) 0.329 (b) 0.013 (c) 0.4 (d) 0.48
  36. 36.Which is the smallest: 0.751, 0.8, 0.83, 0.052? (a) 0.751 (b) 0.8 (c) 0.83 (d) 0.052
  37. 37.Which is the smallest: 0.85, 0.723, 0.073, 0.8? (a) 0.85 (b) 0.723 (c) 0.073 (d) 0.8
  38. 38.Which is the smallest: 0.327, 0.46, 0.4, 0.067? (a) 0.327 (b) 0.46 (c) 0.4 (d) 0.067
  39. 39.Which is the greatest: 0.216, 0.38, 0.3, 0.017? (a) 0.216 (b) 0.38 (c) 0.3 (d) 0.017
  40. 40.What is the value of the digit 3 in 62.931? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03

Answer key

  1. 0.22
  2. 0.002
  3. 0.6
  4. 0.35
  5. 8.38
  6. 0.22
  7. 11.92
  8. 0.81
  9. 8
  10. 0.39
  11. 0.087
  12. 10.38
  13. 7.39
  14. 0.023
  15. 0.44
  16. 3.44
  17. 3.74
  18. 0.23
  19. 12.69
  20. 4.96
  21. 0.69
  22. 0.041
  23. 0.02
  24. 11.23
  25. 50
  26. 0.002
  27. 13.19
  28. 0.078
  29. 6
  30. 30
  31. 7.81
  32. 16.21
  33. 0.002
  34. 13.76
  35. 0.013
  36. 0.052
  37. 0.073
  38. 0.067
  39. 0.38
  40. 0.03

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