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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 603 · 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 greatest: 0.264, 0.3, 0.044, 0.33? (a) 0.264 (b) 0.3 (c) 0.044 (d) 0.33
  2. 2.What is the value of the digit 2 in 65.289? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  3. 3.1.97 + 6.1 = ? (a) 2.58 (b) 7.97 (c) 8.17 (d) 8.07
  4. 4.2.52 + 2.9 = ? (a) 2.81 (b) 5.52 (c) 5.42 (d) 5.32
  5. 5.7.69 + 2.1 = ? (a) 7.9 (b) 9.79 (c) 9.69 (d) 9.89
  6. 6.What is the value of the digit 3 in 36.917? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  7. 7.1.93 + 8.5 = ? (a) 10.33 (b) 10.53 (c) 2.78 (d) 10.43
  8. 8.7.74 + 9.2 = ? (a) 8.66 (b) 17.04 (c) 16.84 (d) 16.94
  9. 9.9.87 + 2.6 = ? (a) 12.57 (b) 12.37 (c) 12.47 (d) 10.13
  10. 10.What is the value of the digit 2 in 43.126? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  11. 11.8.98 + 9.5 = ? (a) 18.48 (b) 9.93 (c) 18.38 (d) 18.58
  12. 12.What is the value of the digit 3 in 83.561? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  13. 13.1.07 + 9.3 = ? (a) 10.47 (b) 10.37 (c) 10.27 (d) 2
  14. 14.What is the value of the digit 4 in 12.456? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  15. 15.What is the value of the digit 5 in 68.135? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  16. 16.Which is the smallest: 0.087, 0.684, 0.7, 0.76? (a) 0.087 (b) 0.684 (c) 0.7 (d) 0.76
  17. 17.What is the value of the digit 7 in 73.591? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  18. 18.Which is the smallest: 0.52, 0.5, 0.431, 0.073? (a) 0.52 (b) 0.5 (c) 0.431 (d) 0.073
  19. 19.Which is the smallest: 0.41, 0.383, 0.065, 0.4? (a) 0.41 (b) 0.383 (c) 0.065 (d) 0.4
  20. 20.What is the value of the digit 4 in 58.274? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  21. 21.What is the value of the digit 1 in 56.921? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  22. 22.5.27 + 3.7 = ? (a) 8.97 (b) 5.64 (c) 8.87 (d) 9.07
  23. 23.Which is the greatest: 0.012, 0.3, 0.35, 0.269? (a) 0.012 (b) 0.3 (c) 0.35 (d) 0.269
  24. 24.What is the value of the digit 3 in 58.349? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  25. 25.Which is the smallest: 0.2, 0.21, 0.033, 0.199? (a) 0.2 (b) 0.21 (c) 0.033 (d) 0.199
  26. 26.Which is the greatest: 0.8, 0.87, 0.085, 0.711? (a) 0.8 (b) 0.87 (c) 0.085 (d) 0.711
  27. 27.3.58 + 6.4 = ? (a) 4.22 (b) 9.98 (c) 10.08 (d) 9.88
  28. 28.Which is the greatest: 0.015, 0.32, 0.3, 0.211? (a) 0.015 (b) 0.32 (c) 0.3 (d) 0.211
  29. 29.9.13 + 9.1 = ? (a) 18.13 (b) 18.33 (c) 18.23 (d) 10.04
  30. 30.Which is the smallest: 0.21, 0.078, 0.2, 0.135? (a) 0.21 (b) 0.078 (c) 0.2 (d) 0.135
  31. 31.1.59 + 9.1 = ? (a) 10.59 (b) 10.79 (c) 10.69 (d) 2.5
  32. 32.What is the value of the digit 4 in 34.759? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  33. 33.What is the value of the digit 6 in 57.136? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  34. 34.Which is the smallest: 0.34, 0.226, 0.016, 0.3? (a) 0.34 (b) 0.226 (c) 0.016 (d) 0.3
  35. 35.What is the value of the digit 4 in 36.874? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  36. 36.Which is the smallest: 0.69, 0.514, 0.061, 0.6? (a) 0.69 (b) 0.514 (c) 0.061 (d) 0.6
  37. 37.8.86 + 4.9 = ? (a) 13.86 (b) 9.35 (c) 13.66 (d) 13.76
  38. 38.3.32 + 7.3 = ? (a) 10.52 (b) 4.05 (c) 10.62 (d) 10.72
  39. 39.What is the value of the digit 8 in 98.326? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  40. 40.What is the value of the digit 7 in 87.435? (a) 7 (b) 70 (c) 0.7 (d) 0.07

Answer key

  1. 0.33
  2. 0.2
  3. 8.07
  4. 5.42
  5. 9.79
  6. 30
  7. 10.43
  8. 16.94
  9. 12.47
  10. 0.02
  11. 18.48
  12. 3
  13. 10.37
  14. 0.4
  15. 0.005
  16. 0.087
  17. 70
  18. 0.073
  19. 0.065
  20. 0.004
  21. 0.001
  22. 8.97
  23. 0.35
  24. 0.3
  25. 0.033
  26. 0.87
  27. 9.98
  28. 0.32
  29. 18.23
  30. 0.078
  31. 10.69
  32. 4
  33. 0.006
  34. 0.016
  35. 0.004
  36. 0.061
  37. 13.76
  38. 10.62
  39. 8
  40. 7

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