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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 503 · 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 7 in 27.158? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  2. 2.What is the value of the digit 1 in 15.429? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  3. 3.What is the value of the digit 8 in 32.798? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  4. 4.3.19 + 9.1 = ? (a) 12.19 (b) 4.1 (c) 12.29 (d) 12.39
  5. 5.What is the value of the digit 9 in 41.592? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  6. 6.3.86 + 5.1 = ? (a) 8.96 (b) 4.37 (c) 9.06 (d) 8.86
  7. 7.Which is the greatest: 0.031, 0.254, 0.31, 0.3? (a) 0.031 (b) 0.254 (c) 0.31 (d) 0.3
  8. 8.3.16 + 4.2 = ? (a) 7.26 (b) 7.46 (c) 7.36 (d) 3.58
  9. 9.Which is the smallest: 0.52, 0.438, 0.077, 0.5? (a) 0.52 (b) 0.438 (c) 0.077 (d) 0.5
  10. 10.2.13 + 7.2 = ? (a) 2.85 (b) 9.43 (c) 9.33 (d) 9.23
  11. 11.5.82 + 2.5 = ? (a) 6.07 (b) 8.42 (c) 8.22 (d) 8.32
  12. 12.Which is the smallest: 0.731, 0.095, 0.8, 0.89? (a) 0.731 (b) 0.095 (c) 0.8 (d) 0.89
  13. 13.Which is the smallest: 0.5, 0.59, 0.085, 0.425? (a) 0.5 (b) 0.59 (c) 0.085 (d) 0.425
  14. 14.What is the value of the digit 4 in 94.176? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  15. 15.1.72 + 8.2 = ? (a) 2.54 (b) 9.82 (c) 9.92 (d) 10.02
  16. 16.2.36 + 6.1 = ? (a) 2.97 (b) 8.56 (c) 8.36 (d) 8.46
  17. 17.What is the value of the digit 6 in 27.638? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  18. 18.What is the value of the digit 9 in 57.294? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  19. 19.Which is the greatest: 0.065, 0.22, 0.2, 0.115? (a) 0.065 (b) 0.22 (c) 0.2 (d) 0.115
  20. 20.What is the value of the digit 1 in 81.762? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  21. 21.7.28 + 1.3 = ? (a) 8.58 (b) 8.48 (c) 7.41 (d) 8.68
  22. 22.What is the value of the digit 2 in 71.325? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  23. 23.Which is the smallest: 0.049, 0.3, 0.221, 0.32? (a) 0.049 (b) 0.3 (c) 0.221 (d) 0.32
  24. 24.Which is the smallest: 0.6, 0.513, 0.057, 0.65? (a) 0.6 (b) 0.513 (c) 0.057 (d) 0.65
  25. 25.Which is the greatest: 0.727, 0.024, 0.8, 0.84? (a) 0.727 (b) 0.024 (c) 0.8 (d) 0.84
  26. 26.5.81 + 2.9 = ? (a) 8.81 (b) 6.1 (c) 8.61 (d) 8.71
  27. 27.Which is the greatest: 0.81, 0.742, 0.022, 0.8? (a) 0.81 (b) 0.742 (c) 0.022 (d) 0.8
  28. 28.8.88 + 6.1 = ? (a) 9.49 (b) 15.08 (c) 14.88 (d) 14.98
  29. 29.5.24 + 1.2 = ? (a) 5.36 (b) 6.34 (c) 6.44 (d) 6.54
  30. 30.8.75 + 1.7 = ? (a) 10.35 (b) 8.92 (c) 10.45 (d) 10.55
  31. 31.Which is the greatest: 0.7, 0.71, 0.013, 0.658? (a) 0.7 (b) 0.71 (c) 0.013 (d) 0.658
  32. 32.6.38 + 4.7 = ? (a) 6.85 (b) 11.18 (c) 11.08 (d) 10.98
  33. 33.1.53 + 6.1 = ? (a) 7.53 (b) 7.63 (c) 7.73 (d) 2.14
  34. 34.1.71 + 1.2 = ? (a) 2.81 (b) 3.01 (c) 2.91 (d) 1.83
  35. 35.Which is the greatest: 0.025, 0.31, 0.293, 0.3? (a) 0.025 (b) 0.31 (c) 0.293 (d) 0.3
  36. 36.7.95 + 7.1 = ? (a) 15.15 (b) 14.95 (c) 8.66 (d) 15.05
  37. 37.5.83 + 6.2 = ? (a) 12.13 (b) 11.93 (c) 6.45 (d) 12.03
  38. 38.What is the value of the digit 8 in 98.654? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  39. 39.7.42 + 8.9 = ? (a) 16.22 (b) 16.32 (c) 16.42 (d) 8.31
  40. 40.1.34 + 9.5 = ? (a) 10.94 (b) 10.74 (c) 2.29 (d) 10.84

Answer key

  1. 7
  2. 10
  3. 0.008
  4. 12.29
  5. 0.09
  6. 8.96
  7. 0.31
  8. 7.36
  9. 0.077
  10. 9.33
  11. 8.32
  12. 0.095
  13. 0.085
  14. 4
  15. 9.92
  16. 8.46
  17. 0.6
  18. 0.09
  19. 0.22
  20. 1
  21. 8.58
  22. 0.02
  23. 0.049
  24. 0.057
  25. 0.84
  26. 8.71
  27. 0.81
  28. 14.98
  29. 6.44
  30. 10.45
  31. 0.71
  32. 11.08
  33. 7.63
  34. 2.91
  35. 0.31
  36. 15.05
  37. 12.03
  38. 8
  39. 16.32
  40. 10.84

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