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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 50 · 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 4 in 45.986? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  2. 2.Which is the greatest: 0.092, 0.2, 0.26, 0.117? (a) 0.092 (b) 0.2 (c) 0.26 (d) 0.117
  3. 3.What is the value of the digit 8 in 43.258? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  4. 4.7.62 + 2.8 = ? (a) 10.52 (b) 7.9 (c) 10.32 (d) 10.42
  5. 5.4.85 + 7.8 = ? (a) 12.75 (b) 12.55 (c) 5.63 (d) 12.65
  6. 6.9.17 + 2.9 = ? (a) 11.97 (b) 12.07 (c) 12.17 (d) 9.46
  7. 7.What is the value of the digit 6 in 31.764? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  8. 8.Which is the greatest: 0.4, 0.49, 0.318, 0.084? (a) 0.4 (b) 0.49 (c) 0.318 (d) 0.084
  9. 9.What is the value of the digit 7 in 72.416? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  10. 10.What is the value of the digit 3 in 37.852? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  11. 11.What is the value of the digit 3 in 95.132? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  12. 12.6.31 + 9.2 = ? (a) 15.61 (b) 15.41 (c) 15.51 (d) 7.23
  13. 13.Which is the smallest: 0.092, 0.384, 0.4, 0.45? (a) 0.092 (b) 0.384 (c) 0.4 (d) 0.45
  14. 14.3.23 + 2.1 = ? (a) 5.33 (b) 3.44 (c) 5.43 (d) 5.23
  15. 15.Which is the greatest: 0.022, 0.496, 0.5, 0.55? (a) 0.022 (b) 0.496 (c) 0.5 (d) 0.55
  16. 16.Which is the smallest: 0.81, 0.031, 0.8, 0.751? (a) 0.81 (b) 0.031 (c) 0.8 (d) 0.751
  17. 17.What is the value of the digit 7 in 71.638? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  18. 18.8.44 + 1.3 = ? (a) 9.64 (b) 9.84 (c) 9.74 (d) 8.57
  19. 19.7.01 + 3.2 = ? (a) 10.31 (b) 10.11 (c) 10.21 (d) 7.33
  20. 20.1.68 + 8.8 = ? (a) 10.38 (b) 10.48 (c) 10.58 (d) 2.56
  21. 21.3.18 + 5.1 = ? (a) 8.38 (b) 3.69 (c) 8.18 (d) 8.28
  22. 22.Which is the greatest: 0.094, 0.6, 0.69, 0.578? (a) 0.094 (b) 0.6 (c) 0.69 (d) 0.578
  23. 23.What is the value of the digit 4 in 37.486? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  24. 24.3.05 + 3.8 = ? (a) 6.95 (b) 6.75 (c) 6.85 (d) 3.43
  25. 25.What is the value of the digit 2 in 73.812? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  26. 26.What is the value of the digit 2 in 67.182? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  27. 27.What is the value of the digit 4 in 34.768? (a) 4 (b) 0.04 (c) 40 (d) 0.4
  28. 28.What is the value of the digit 8 in 32.894? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  29. 29.6.17 + 7.8 = ? (a) 14.07 (b) 13.97 (c) 6.95 (d) 13.87
  30. 30.What is the value of the digit 1 in 41.635? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  31. 31.8.99 + 7.4 = ? (a) 16.49 (b) 9.73 (c) 16.39 (d) 16.29
  32. 32.1.62 + 7.3 = ? (a) 2.35 (b) 8.92 (c) 9.02 (d) 8.82
  33. 33.1.14 + 6.6 = ? (a) 7.64 (b) 7.84 (c) 7.74 (d) 1.8
  34. 34.Which is the greatest: 0.2, 0.179, 0.22, 0.041? (a) 0.2 (b) 0.179 (c) 0.22 (d) 0.041
  35. 35.Which is the greatest: 0.4, 0.48, 0.011, 0.314? (a) 0.4 (b) 0.48 (c) 0.011 (d) 0.314
  36. 36.What is the value of the digit 4 in 49.536? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  37. 37.2.49 + 7.7 = ? (a) 10.19 (b) 3.26 (c) 10.09 (d) 10.29
  38. 38.Which is the smallest: 0.027, 0.29, 0.2, 0.153? (a) 0.027 (b) 0.29 (c) 0.2 (d) 0.153
  39. 39.8.24 + 8.9 = ? (a) 17.24 (b) 17.14 (c) 9.13 (d) 17.04
  40. 40.Which is the greatest: 0.038, 0.589, 0.6, 0.68? (a) 0.038 (b) 0.589 (c) 0.6 (d) 0.68

Answer key

  1. 40
  2. 0.26
  3. 0.008
  4. 10.42
  5. 12.65
  6. 12.07
  7. 0.06
  8. 0.49
  9. 70
  10. 30
  11. 0.03
  12. 15.51
  13. 0.092
  14. 5.33
  15. 0.55
  16. 0.031
  17. 70
  18. 9.74
  19. 10.21
  20. 10.48
  21. 8.28
  22. 0.69
  23. 0.4
  24. 6.85
  25. 0.002
  26. 0.002
  27. 4
  28. 0.8
  29. 13.97
  30. 1
  31. 16.39
  32. 8.92
  33. 7.74
  34. 0.22
  35. 0.48
  36. 40
  37. 10.19
  38. 0.027
  39. 17.14
  40. 0.68

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