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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 367 · 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. 1.4.18 + 3.2 = ? (a) 7.28 (b) 7.48 (c) 4.5 (d) 7.38
  2. 2.Which is the smallest: 0.76, 0.673, 0.025, 0.7? (a) 0.76 (b) 0.673 (c) 0.025 (d) 0.7
  3. 3.9.27 + 8.1 = ? (a) 17.47 (b) 17.27 (c) 17.37 (d) 10.08
  4. 4.4.22 + 5.1 = ? (a) 9.32 (b) 9.22 (c) 9.42 (d) 4.73
  5. 5.9.43 + 2.1 = ? (a) 11.43 (b) 11.53 (c) 9.64 (d) 11.63
  6. 6.Which is the smallest: 0.034, 0.3, 0.244, 0.36? (a) 0.034 (b) 0.3 (c) 0.244 (d) 0.36
  7. 7.What is the value of the digit 4 in 48.329? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  8. 8.Which is the greatest: 0.82, 0.014, 0.772, 0.8? (a) 0.82 (b) 0.014 (c) 0.772 (d) 0.8
  9. 9.What is the value of the digit 4 in 49.361? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  10. 10.9.61 + 6.8 = ? (a) 16.51 (b) 16.31 (c) 16.41 (d) 10.29
  11. 11.4.71 + 9.4 = ? (a) 5.65 (b) 14.21 (c) 14.11 (d) 14.01
  12. 12.9.25 + 9.6 = ? (a) 18.75 (b) 10.21 (c) 18.85 (d) 18.95
  13. 13.What is the value of the digit 8 in 86.213? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  14. 14.1.36 + 2.4 = ? (a) 1.6 (b) 3.76 (c) 3.86 (d) 3.66
  15. 15.Which is the smallest: 0.74, 0.099, 0.7, 0.611? (a) 0.74 (b) 0.099 (c) 0.7 (d) 0.611
  16. 16.Which is the greatest: 0.199, 0.037, 0.2, 0.27? (a) 0.199 (b) 0.037 (c) 0.2 (d) 0.27
  17. 17.What is the value of the digit 6 in 84.671? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  18. 18.What is the value of the digit 7 in 74.529? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  19. 19.Which is the greatest: 0.57, 0.011, 0.485, 0.5? (a) 0.57 (b) 0.011 (c) 0.485 (d) 0.5
  20. 20.Which is the smallest: 0.261, 0.3, 0.065, 0.32? (a) 0.261 (b) 0.3 (c) 0.065 (d) 0.32
  21. 21.What is the value of the digit 5 in 42.579? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  22. 22.What is the value of the digit 2 in 79.523? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  23. 23.1.61 + 4.2 = ? (a) 2.03 (b) 5.71 (c) 5.81 (d) 5.91
  24. 24.What is the value of the digit 4 in 38.475? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  25. 25.5.21 + 2.4 = ? (a) 7.71 (b) 7.51 (c) 5.45 (d) 7.61
  26. 26.Which is the greatest: 0.013, 0.115, 0.2, 0.25? (a) 0.013 (b) 0.115 (c) 0.2 (d) 0.25
  27. 27.What is the value of the digit 9 in 91.258? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  28. 28.Which is the greatest: 0.029, 0.41, 0.4, 0.376? (a) 0.029 (b) 0.41 (c) 0.4 (d) 0.376
  29. 29.2.74 + 8.4 = ? (a) 11.24 (b) 3.58 (c) 11.04 (d) 11.14
  30. 30.1.77 + 2.1 = ? (a) 3.97 (b) 1.98 (c) 3.77 (d) 3.87
  31. 31.4.09 + 1.1 = ? (a) 5.29 (b) 5.09 (c) 5.19 (d) 4.2
  32. 32.Which is the smallest: 0.71, 0.691, 0.036, 0.7? (a) 0.71 (b) 0.691 (c) 0.036 (d) 0.7
  33. 33.Which is the smallest: 0.73, 0.068, 0.7, 0.629? (a) 0.73 (b) 0.068 (c) 0.7 (d) 0.629
  34. 34.What is the value of the digit 8 in 17.238? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  35. 35.Which is the greatest: 0.74, 0.678, 0.051, 0.7? (a) 0.74 (b) 0.678 (c) 0.051 (d) 0.7
  36. 36.4.47 + 5.1 = ? (a) 9.57 (b) 9.67 (c) 4.98 (d) 9.47
  37. 37.Which is the smallest: 0.622, 0.72, 0.7, 0.098? (a) 0.622 (b) 0.72 (c) 0.7 (d) 0.098
  38. 38.What is the value of the digit 7 in 97.834? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  39. 39.Which is the greatest: 0.2, 0.069, 0.25, 0.167? (a) 0.2 (b) 0.069 (c) 0.25 (d) 0.167
  40. 40.What is the value of the digit 8 in 65.824? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08

Answer key

  1. 7.38
  2. 0.025
  3. 17.37
  4. 9.32
  5. 11.53
  6. 0.034
  7. 40
  8. 0.82
  9. 40
  10. 16.41
  11. 14.11
  12. 18.85
  13. 80
  14. 3.76
  15. 0.099
  16. 0.27
  17. 0.6
  18. 70
  19. 0.57
  20. 0.065
  21. 0.5
  22. 0.02
  23. 5.81
  24. 0.4
  25. 7.61
  26. 0.25
  27. 90
  28. 0.41
  29. 11.14
  30. 3.87
  31. 5.19
  32. 0.036
  33. 0.068
  34. 0.008
  35. 0.74
  36. 9.57
  37. 0.098
  38. 7
  39. 0.25
  40. 0.8

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