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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 56 · 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.Which is the smallest: 0.037, 0.25, 0.126, 0.2? (a) 0.037 (b) 0.25 (c) 0.126 (d) 0.2
  2. 2.Which is the smallest: 0.251, 0.35, 0.021, 0.3? (a) 0.251 (b) 0.35 (c) 0.021 (d) 0.3
  3. 3.What is the value of the digit 4 in 45.781? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  4. 4.What is the value of the digit 5 in 18.795? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  5. 5.7.56 + 1.2 = ? (a) 8.66 (b) 7.68 (c) 8.76 (d) 8.86
  6. 6.7.77 + 4.2 = ? (a) 12.07 (b) 11.87 (c) 8.19 (d) 11.97
  7. 7.What is the value of the digit 9 in 71.298? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  8. 8.Which is the smallest: 0.59, 0.5, 0.412, 0.048? (a) 0.59 (b) 0.5 (c) 0.412 (d) 0.048
  9. 9.Which is the smallest: 0.064, 0.34, 0.3, 0.266? (a) 0.064 (b) 0.34 (c) 0.3 (d) 0.266
  10. 10.9.78 + 1.4 = ? (a) 11.28 (b) 11.08 (c) 11.18 (d) 9.92
  11. 11.What is the value of the digit 9 in 79.285? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  12. 12.9.73 + 8.5 = ? (a) 18.13 (b) 18.23 (c) 18.33 (d) 10.58
  13. 13.What is the value of the digit 2 in 34.526? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  14. 14.Which is the smallest: 0.23, 0.061, 0.2, 0.167? (a) 0.23 (b) 0.061 (c) 0.2 (d) 0.167
  15. 15.What is the value of the digit 8 in 86.543? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  16. 16.Which is the smallest: 0.348, 0.43, 0.4, 0.077? (a) 0.348 (b) 0.43 (c) 0.4 (d) 0.077
  17. 17.Which is the greatest: 0.3, 0.35, 0.252, 0.023? (a) 0.3 (b) 0.35 (c) 0.252 (d) 0.023
  18. 18.Which is the greatest: 0.584, 0.68, 0.6, 0.014? (a) 0.584 (b) 0.68 (c) 0.6 (d) 0.014
  19. 19.1.99 + 9.2 = ? (a) 11.09 (b) 2.91 (c) 11.19 (d) 11.29
  20. 20.Which is the greatest: 0.086, 0.84, 0.8, 0.736? (a) 0.086 (b) 0.84 (c) 0.8 (d) 0.736
  21. 21.What is the value of the digit 4 in 49.752? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  22. 22.Which is the smallest: 0.099, 0.7, 0.634, 0.77? (a) 0.099 (b) 0.7 (c) 0.634 (d) 0.77
  23. 23.What is the value of the digit 4 in 64.357? (a) 40 (b) 4 (c) 0.4 (d) 0.04
  24. 24.Which is the greatest: 0.625, 0.026, 0.72, 0.7? (a) 0.625 (b) 0.026 (c) 0.72 (d) 0.7
  25. 25.2.76 + 9.7 = ? (a) 3.73 (b) 12.36 (c) 12.56 (d) 12.46
  26. 26.What is the value of the digit 2 in 49.271? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  27. 27.Which is the greatest: 0.258, 0.021, 0.31, 0.3? (a) 0.258 (b) 0.021 (c) 0.31 (d) 0.3
  28. 28.Which is the smallest: 0.81, 0.097, 0.8, 0.711? (a) 0.81 (b) 0.097 (c) 0.8 (d) 0.711
  29. 29.Which is the smallest: 0.159, 0.2, 0.093, 0.23? (a) 0.159 (b) 0.2 (c) 0.093 (d) 0.23
  30. 30.What is the value of the digit 2 in 23.471? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  31. 31.1.09 + 7.6 = ? (a) 8.79 (b) 8.59 (c) 8.69 (d) 1.85
  32. 32.What is the value of the digit 2 in 81.462? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  33. 33.Which is the greatest: 0.515, 0.6, 0.026, 0.63? (a) 0.515 (b) 0.6 (c) 0.026 (d) 0.63
  34. 34.9.83 + 2.6 = ? (a) 12.53 (b) 10.09 (c) 12.33 (d) 12.43
  35. 35.What is the value of the digit 1 in 28.716? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  36. 36.8.25 + 1.4 = ? (a) 9.65 (b) 9.75 (c) 8.39 (d) 9.55
  37. 37.What is the value of the digit 3 in 17.396? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  38. 38.5.45 + 6.2 = ? (a) 11.75 (b) 11.65 (c) 6.07 (d) 11.55
  39. 39.3.27 + 1.3 = ? (a) 4.47 (b) 3.4 (c) 4.57 (d) 4.67
  40. 40.9.61 + 3.4 = ? (a) 12.91 (b) 9.95 (c) 13.01 (d) 13.11

Answer key

  1. 0.037
  2. 0.021
  3. 40
  4. 0.005
  5. 8.76
  6. 11.97
  7. 0.09
  8. 0.048
  9. 0.064
  10. 11.18
  11. 9
  12. 18.23
  13. 0.02
  14. 0.061
  15. 80
  16. 0.077
  17. 0.35
  18. 0.68
  19. 11.19
  20. 0.84
  21. 40
  22. 0.099
  23. 4
  24. 0.72
  25. 12.46
  26. 0.2
  27. 0.31
  28. 0.097
  29. 0.093
  30. 20
  31. 8.69
  32. 0.002
  33. 0.63
  34. 12.43
  35. 0.01
  36. 9.65
  37. 0.3
  38. 11.65
  39. 4.57
  40. 13.01

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