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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 349 · 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 1 in 64.317? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  2. 2.7.04 + 7.3 = ? (a) 14.44 (b) 14.34 (c) 14.24 (d) 7.77
  3. 3.Which is the greatest: 0.54, 0.087, 0.5, 0.482? (a) 0.54 (b) 0.087 (c) 0.5 (d) 0.482
  4. 4.What is the value of the digit 4 in 56.184? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  5. 5.What is the value of the digit 1 in 37.915? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  6. 6.Which is the smallest: 0.038, 0.8, 0.757, 0.84? (a) 0.038 (b) 0.8 (c) 0.757 (d) 0.84
  7. 7.4.11 + 7.5 = ? (a) 4.86 (b) 11.51 (c) 11.71 (d) 11.61
  8. 8.Which is the smallest: 0.49, 0.4, 0.055, 0.336? (a) 0.49 (b) 0.4 (c) 0.055 (d) 0.336
  9. 9.9.24 + 4.9 = ? (a) 14.24 (b) 9.73 (c) 14.14 (d) 14.04
  10. 10.4.24 + 3.2 = ? (a) 7.54 (b) 7.44 (c) 4.56 (d) 7.34
  11. 11.What is the value of the digit 7 in 75.628? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  12. 12.2.07 + 7.8 = ? (a) 9.77 (b) 2.85 (c) 9.97 (d) 9.87
  13. 13.What is the value of the digit 5 in 38.915? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  14. 14.3.64 + 5.1 = ? (a) 4.15 (b) 8.64 (c) 8.84 (d) 8.74
  15. 15.Which is the greatest: 0.5, 0.056, 0.52, 0.487? (a) 0.5 (b) 0.056 (c) 0.52 (d) 0.487
  16. 16.What is the value of the digit 4 in 12.485? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  17. 17.Which is the greatest: 0.019, 0.417, 0.5, 0.53? (a) 0.019 (b) 0.417 (c) 0.5 (d) 0.53
  18. 18.4.81 + 2.9 = ? (a) 7.81 (b) 7.61 (c) 5.1 (d) 7.71
  19. 19.9.91 + 1.6 = ? (a) 11.61 (b) 11.41 (c) 10.07 (d) 11.51
  20. 20.What is the value of the digit 4 in 65.234? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  21. 21.4.08 + 9.1 = ? (a) 13.08 (b) 13.28 (c) 13.18 (d) 4.99
  22. 22.What is the value of the digit 8 in 85.913? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  23. 23.Which is the smallest: 0.43, 0.4, 0.076, 0.386? (a) 0.43 (b) 0.4 (c) 0.076 (d) 0.386
  24. 24.What is the value of the digit 4 in 73.428? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  25. 25.What is the value of the digit 1 in 27.154? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  26. 26.What is the value of the digit 8 in 18.345? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  27. 27.Which is the smallest: 0.26, 0.162, 0.2, 0.093? (a) 0.26 (b) 0.162 (c) 0.2 (d) 0.093
  28. 28.What is the value of the digit 3 in 84.632? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  29. 29.8.77 + 3.2 = ? (a) 11.87 (b) 11.97 (c) 12.07 (d) 9.09
  30. 30.What is the value of the digit 1 in 18.394? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  31. 31.Which is the smallest: 0.457, 0.087, 0.5, 0.54? (a) 0.457 (b) 0.087 (c) 0.5 (d) 0.54
  32. 32.1.78 + 8.3 = ? (a) 10.08 (b) 9.98 (c) 10.18 (d) 2.61
  33. 33.What is the value of the digit 5 in 27.951? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  34. 34.9.33 + 6.1 = ? (a) 15.53 (b) 15.43 (c) 15.33 (d) 9.94
  35. 35.Which is the smallest: 0.223, 0.3, 0.35, 0.074? (a) 0.223 (b) 0.3 (c) 0.35 (d) 0.074
  36. 36.9.62 + 5.8 = ? (a) 15.52 (b) 15.42 (c) 10.2 (d) 15.32
  37. 37.What is the value of the digit 5 in 43.825? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  38. 38.What is the value of the digit 3 in 16.438? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  39. 39.Which is the greatest: 0.6, 0.025, 0.62, 0.518? (a) 0.6 (b) 0.025 (c) 0.62 (d) 0.518
  40. 40.What is the value of the digit 3 in 26.349? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03

Answer key

  1. 0.01
  2. 14.34
  3. 0.54
  4. 0.004
  5. 0.01
  6. 0.038
  7. 11.61
  8. 0.055
  9. 14.14
  10. 7.44
  11. 70
  12. 9.87
  13. 0.005
  14. 8.74
  15. 0.52
  16. 0.4
  17. 0.53
  18. 7.71
  19. 11.51
  20. 0.004
  21. 13.18
  22. 80
  23. 0.076
  24. 0.4
  25. 0.1
  26. 8
  27. 0.093
  28. 0.03
  29. 11.97
  30. 10
  31. 0.087
  32. 10.08
  33. 0.05
  34. 15.43
  35. 0.074
  36. 15.42
  37. 0.005
  38. 0.03
  39. 0.62
  40. 0.3

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