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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 516 · 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 5 in 21.953? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  2. 2.2.21 + 7.9 = ? (a) 10.21 (b) 3 (c) 10.01 (d) 10.11
  3. 3.Which is the smallest: 0.032, 0.532, 0.68, 0.6? (a) 0.032 (b) 0.532 (c) 0.68 (d) 0.6
  4. 4.4.79 + 5.6 = ? (a) 10.49 (b) 10.29 (c) 5.35 (d) 10.39
  5. 5.Which is the greatest: 0.131, 0.2, 0.24, 0.075? (a) 0.131 (b) 0.2 (c) 0.24 (d) 0.075
  6. 6.What is the value of the digit 8 in 51.862? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  7. 7.What is the value of the digit 8 in 96.283? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  8. 8.3.69 + 7.7 = ? (a) 11.39 (b) 11.29 (c) 11.49 (d) 4.46
  9. 9.Which is the greatest: 0.2, 0.018, 0.22, 0.181? (a) 0.2 (b) 0.018 (c) 0.22 (d) 0.181
  10. 10.4.55 + 1.6 = ? (a) 6.25 (b) 6.15 (c) 6.05 (d) 4.71
  11. 11.Which is the smallest: 0.62, 0.6, 0.547, 0.068? (a) 0.62 (b) 0.6 (c) 0.547 (d) 0.068
  12. 12.6.17 + 2.3 = ? (a) 8.37 (b) 8.57 (c) 8.47 (d) 6.4
  13. 13.1.97 + 3.6 = ? (a) 2.33 (b) 5.67 (c) 5.47 (d) 5.57
  14. 14.3.52 + 4.1 = ? (a) 7.72 (b) 7.62 (c) 7.52 (d) 3.93
  15. 15.6.21 + 2.5 = ? (a) 6.46 (b) 8.71 (c) 8.81 (d) 8.61
  16. 16.Which is the smallest: 0.021, 0.22, 0.2, 0.182? (a) 0.021 (b) 0.22 (c) 0.2 (d) 0.182
  17. 17.Which is the greatest: 0.728, 0.81, 0.8, 0.076? (a) 0.728 (b) 0.81 (c) 0.8 (d) 0.076
  18. 18.What is the value of the digit 6 in 62.139? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  19. 19.Which is the smallest: 0.4, 0.381, 0.43, 0.066? (a) 0.4 (b) 0.381 (c) 0.43 (d) 0.066
  20. 20.Which is the greatest: 0.2, 0.166, 0.011, 0.23? (a) 0.2 (b) 0.166 (c) 0.011 (d) 0.23
  21. 21.Which is the smallest: 0.492, 0.037, 0.56, 0.5? (a) 0.492 (b) 0.037 (c) 0.56 (d) 0.5
  22. 22.What is the value of the digit 4 in 81.324? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  23. 23.Which is the smallest: 0.016, 0.36, 0.221, 0.3? (a) 0.016 (b) 0.36 (c) 0.221 (d) 0.3
  24. 24.Which is the greatest: 0.23, 0.2, 0.142, 0.037? (a) 0.23 (b) 0.2 (c) 0.142 (d) 0.037
  25. 25.Which is the smallest: 0.2, 0.048, 0.26, 0.155? (a) 0.2 (b) 0.048 (c) 0.26 (d) 0.155
  26. 26.6.91 + 8.1 = ? (a) 15.11 (b) 15.01 (c) 14.91 (d) 7.72
  27. 27.What is the value of the digit 8 in 36.851? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  28. 28.Which is the smallest: 0.241, 0.3, 0.026, 0.37? (a) 0.241 (b) 0.3 (c) 0.026 (d) 0.37
  29. 29.Which is the greatest: 0.6, 0.081, 0.61, 0.537? (a) 0.6 (b) 0.081 (c) 0.61 (d) 0.537
  30. 30.9.62 + 9.5 = ? (a) 19.12 (b) 10.57 (c) 19.02 (d) 19.22
  31. 31.Which is the smallest: 0.422, 0.54, 0.5, 0.056? (a) 0.422 (b) 0.54 (c) 0.5 (d) 0.056
  32. 32.Which is the greatest: 0.036, 0.6, 0.65, 0.571? (a) 0.036 (b) 0.6 (c) 0.65 (d) 0.571
  33. 33.Which is the greatest: 0.54, 0.092, 0.5, 0.479? (a) 0.54 (b) 0.092 (c) 0.5 (d) 0.479
  34. 34.4.28 + 5.8 = ? (a) 4.86 (b) 10.18 (c) 10.08 (d) 9.98
  35. 35.What is the value of the digit 1 in 18.752? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  36. 36.What is the value of the digit 2 in 74.823? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  37. 37.Which is the greatest: 0.159, 0.29, 0.021, 0.2? (a) 0.159 (b) 0.29 (c) 0.021 (d) 0.2
  38. 38.4.22 + 8.1 = ? (a) 12.42 (b) 5.03 (c) 12.22 (d) 12.32
  39. 39.What is the value of the digit 2 in 12.368? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  40. 40.What is the value of the digit 8 in 16.827? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08

Answer key

  1. 0.05
  2. 10.11
  3. 0.032
  4. 10.39
  5. 0.24
  6. 0.8
  7. 0.08
  8. 11.39
  9. 0.22
  10. 6.15
  11. 0.068
  12. 8.47
  13. 5.57
  14. 7.62
  15. 8.71
  16. 0.021
  17. 0.81
  18. 60
  19. 0.066
  20. 0.23
  21. 0.037
  22. 0.004
  23. 0.016
  24. 0.23
  25. 0.048
  26. 15.01
  27. 0.8
  28. 0.026
  29. 0.61
  30. 19.12
  31. 0.056
  32. 0.65
  33. 0.54
  34. 10.08
  35. 10
  36. 0.02
  37. 0.29
  38. 12.32
  39. 2
  40. 0.8

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