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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 729 · 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: 0.799, 0.8, 0.87, 0.027? (a) 0.799 (b) 0.8 (c) 0.87 (d) 0.027
  2. 2.Which is the smallest: 0.233, 0.33, 0.048, 0.3? (a) 0.233 (b) 0.33 (c) 0.048 (d) 0.3
  3. 3.6.31 + 8.6 = ? (a) 15.01 (b) 7.17 (c) 14.81 (d) 14.91
  4. 4.What is the value of the digit 7 in 42.765? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  5. 5.8.67 + 6.5 = ? (a) 15.17 (b) 15.07 (c) 9.32 (d) 15.27
  6. 6.Which is the greatest: 0.048, 0.63, 0.543, 0.6? (a) 0.048 (b) 0.63 (c) 0.543 (d) 0.6
  7. 7.1.32 + 8.1 = ? (a) 9.32 (b) 9.42 (c) 9.52 (d) 2.13
  8. 8.What is the value of the digit 7 in 62.547? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  9. 9.1.64 + 2.2 = ? (a) 1.86 (b) 3.74 (c) 3.94 (d) 3.84
  10. 10.What is the value of the digit 7 in 24.718? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  11. 11.What is the value of the digit 1 in 51.837? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  12. 12.2.53 + 4.2 = ? (a) 2.95 (b) 6.83 (c) 6.63 (d) 6.73
  13. 13.Which is the greatest: 0.7, 0.73, 0.029, 0.611? (a) 0.7 (b) 0.73 (c) 0.029 (d) 0.611
  14. 14.Which is the smallest: 0.013, 0.295, 0.38, 0.3? (a) 0.013 (b) 0.295 (c) 0.38 (d) 0.3
  15. 15.What is the value of the digit 6 in 57.364? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  16. 16.1.82 + 6.6 = ? (a) 8.32 (b) 8.42 (c) 2.48 (d) 8.52
  17. 17.9.96 + 5.6 = ? (a) 10.52 (b) 15.46 (c) 15.66 (d) 15.56
  18. 18.3.08 + 3.1 = ? (a) 3.39 (b) 6.28 (c) 6.08 (d) 6.18
  19. 19.6.65 + 8.1 = ? (a) 7.46 (b) 14.65 (c) 14.85 (d) 14.75
  20. 20.What is the value of the digit 7 in 18.769? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  21. 21.9.88 + 8.7 = ? (a) 18.68 (b) 10.75 (c) 18.58 (d) 18.48
  22. 22.Which is the greatest: 0.251, 0.37, 0.081, 0.3? (a) 0.251 (b) 0.37 (c) 0.081 (d) 0.3
  23. 23.8.91 + 6.4 = ? (a) 15.31 (b) 15.41 (c) 15.21 (d) 9.55
  24. 24.3.76 + 6.1 = ? (a) 4.37 (b) 9.96 (c) 9.76 (d) 9.86
  25. 25.What is the value of the digit 9 in 35.869? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  26. 26.6.08 + 4.4 = ? (a) 10.58 (b) 10.48 (c) 6.52 (d) 10.38
  27. 27.What is the value of the digit 3 in 18.392? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  28. 28.What is the value of the digit 1 in 82.159? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  29. 29.What is the value of the digit 8 in 68.914? (a) 8 (b) 0.8 (c) 80 (d) 0.08
  30. 30.What is the value of the digit 7 in 97.152? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  31. 31.Which is the smallest: 0.2, 0.169, 0.057, 0.26? (a) 0.2 (b) 0.169 (c) 0.057 (d) 0.26
  32. 32.What is the value of the digit 6 in 64.321? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  33. 33.5.99 + 2.1 = ? (a) 6.2 (b) 8.19 (c) 7.99 (d) 8.09
  34. 34.What is the value of the digit 4 in 48.716? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  35. 35.Which is the greatest: 0.419, 0.52, 0.056, 0.5? (a) 0.419 (b) 0.52 (c) 0.056 (d) 0.5
  36. 36.1.61 + 6.6 = ? (a) 8.11 (b) 2.27 (c) 8.31 (d) 8.21
  37. 37.7.33 + 8.7 = ? (a) 8.2 (b) 16.13 (c) 16.03 (d) 15.93
  38. 38.Which is the smallest: 0.534, 0.6, 0.056, 0.61? (a) 0.534 (b) 0.6 (c) 0.056 (d) 0.61
  39. 39.What is the value of the digit 4 in 14.568? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  40. 40.6.89 + 4.1 = ? (a) 7.3 (b) 10.99 (c) 11.09 (d) 10.89

Answer key

  1. 0.027
  2. 0.048
  3. 14.91
  4. 0.7
  5. 15.17
  6. 0.63
  7. 9.42
  8. 0.007
  9. 3.84
  10. 0.7
  11. 1
  12. 6.73
  13. 0.73
  14. 0.013
  15. 0.06
  16. 8.42
  17. 15.56
  18. 6.18
  19. 14.75
  20. 0.7
  21. 18.58
  22. 0.37
  23. 15.31
  24. 9.86
  25. 0.009
  26. 10.48
  27. 0.3
  28. 0.1
  29. 8
  30. 7
  31. 0.057
  32. 60
  33. 8.09
  34. 40
  35. 0.52
  36. 8.21
  37. 16.03
  38. 0.056
  39. 4
  40. 10.99

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