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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 466 · 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 46.283? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  2. 2.7.39 + 1.5 = ? (a) 7.54 (b) 8.99 (c) 8.89 (d) 8.79
  3. 3.2.17 + 9.6 = ? (a) 11.67 (b) 3.13 (c) 11.87 (d) 11.77
  4. 4.What is the value of the digit 1 in 15.647? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  5. 5.Which is the smallest: 0.068, 0.62, 0.545, 0.6? (a) 0.068 (b) 0.62 (c) 0.545 (d) 0.6
  6. 6.Which is the smallest: 0.23, 0.159, 0.019, 0.2? (a) 0.23 (b) 0.159 (c) 0.019 (d) 0.2
  7. 7.7.83 + 2.5 = ? (a) 10.43 (b) 10.33 (c) 10.23 (d) 8.08
  8. 8.5.91 + 2.3 = ? (a) 8.11 (b) 8.31 (c) 8.21 (d) 6.14
  9. 9.9.91 + 2.3 = ? (a) 12.21 (b) 12.31 (c) 10.14 (d) 12.11
  10. 10.2.62 + 6.1 = ? (a) 3.23 (b) 8.82 (c) 8.62 (d) 8.72
  11. 11.What is the value of the digit 1 in 12.756? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  12. 12.Which is the greatest: 0.632, 0.74, 0.7, 0.074? (a) 0.632 (b) 0.74 (c) 0.7 (d) 0.074
  13. 13.What is the value of the digit 9 in 84.297? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  14. 14.7.82 + 9.3 = ? (a) 8.75 (b) 17.02 (c) 17.12 (d) 17.22
  15. 15.4.74 + 9.9 = ? (a) 5.73 (b) 14.64 (c) 14.74 (d) 14.54
  16. 16.What is the value of the digit 6 in 69.374? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  17. 17.What is the value of the digit 8 in 61.827? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  18. 18.What is the value of the digit 6 in 82.639? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  19. 19.Which is the smallest: 0.32, 0.019, 0.271, 0.3? (a) 0.32 (b) 0.019 (c) 0.271 (d) 0.3
  20. 20.2.32 + 3.3 = ? (a) 5.62 (b) 5.52 (c) 5.72 (d) 2.65
  21. 21.Which is the greatest: 0.028, 0.179, 0.2, 0.22? (a) 0.028 (b) 0.179 (c) 0.2 (d) 0.22
  22. 22.Which is the greatest: 0.69, 0.012, 0.569, 0.6? (a) 0.69 (b) 0.012 (c) 0.569 (d) 0.6
  23. 23.Which is the greatest: 0.038, 0.31, 0.278, 0.3? (a) 0.038 (b) 0.31 (c) 0.278 (d) 0.3
  24. 24.What is the value of the digit 4 in 84.691? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  25. 25.Which is the smallest: 0.56, 0.5, 0.446, 0.026? (a) 0.56 (b) 0.5 (c) 0.446 (d) 0.026
  26. 26.7.95 + 5.7 = ? (a) 13.75 (b) 8.52 (c) 13.55 (d) 13.65
  27. 27.5.12 + 6.5 = ? (a) 11.62 (b) 11.72 (c) 11.52 (d) 5.77
  28. 28.What is the value of the digit 3 in 32.458? (a) 0.03 (b) 3 (c) 30 (d) 0.3
  29. 29.What is the value of the digit 2 in 21.358? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  30. 30.Which is the greatest: 0.33, 0.038, 0.299, 0.3? (a) 0.33 (b) 0.038 (c) 0.299 (d) 0.3
  31. 31.Which is the smallest: 0.054, 0.589, 0.61, 0.6? (a) 0.054 (b) 0.589 (c) 0.61 (d) 0.6
  32. 32.5.56 + 5.7 = ? (a) 11.16 (b) 6.13 (c) 11.36 (d) 11.26
  33. 33.2.03 + 2.5 = ? (a) 4.43 (b) 2.28 (c) 4.53 (d) 4.63
  34. 34.2.63 + 1.8 = ? (a) 2.81 (b) 4.43 (c) 4.53 (d) 4.33
  35. 35.1.84 + 6.3 = ? (a) 2.47 (b) 8.04 (c) 8.24 (d) 8.14
  36. 36.What is the value of the digit 1 in 63.189? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  37. 37.Which is the smallest: 0.044, 0.44, 0.4, 0.384? (a) 0.044 (b) 0.44 (c) 0.4 (d) 0.384
  38. 38.Which is the greatest: 0.7, 0.091, 0.73, 0.692? (a) 0.7 (b) 0.091 (c) 0.73 (d) 0.692
  39. 39.Which is the greatest: 0.239, 0.044, 0.37, 0.3? (a) 0.239 (b) 0.044 (c) 0.37 (d) 0.3
  40. 40.4.71 + 8.1 = ? (a) 12.91 (b) 12.71 (c) 5.52 (d) 12.81

Answer key

  1. 40
  2. 8.89
  3. 11.77
  4. 10
  5. 0.068
  6. 0.019
  7. 10.33
  8. 8.21
  9. 12.21
  10. 8.72
  11. 10
  12. 0.74
  13. 0.09
  14. 17.12
  15. 14.64
  16. 60
  17. 0.8
  18. 0.6
  19. 0.019
  20. 5.62
  21. 0.22
  22. 0.69
  23. 0.31
  24. 4
  25. 0.026
  26. 13.65
  27. 11.62
  28. 30
  29. 20
  30. 0.33
  31. 0.054
  32. 11.26
  33. 4.53
  34. 4.43
  35. 8.14
  36. 0.1
  37. 0.044
  38. 0.73
  39. 0.37
  40. 12.81

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