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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 102 · 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: 0.066, 0.7, 0.639, 0.71? (a) 0.066 (b) 0.7 (c) 0.639 (d) 0.71
  2. 2.What is the value of the digit 2 in 75.286? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  3. 3.What is the value of the digit 7 in 25.714? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  4. 4.Which is the smallest: 0.5, 0.031, 0.416, 0.59? (a) 0.5 (b) 0.031 (c) 0.416 (d) 0.59
  5. 5.What is the value of the digit 8 in 83.297? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  6. 6.Which is the greatest: 0.7, 0.045, 0.79, 0.688? (a) 0.7 (b) 0.045 (c) 0.79 (d) 0.688
  7. 7.Which is the greatest: 0.254, 0.3, 0.38, 0.099? (a) 0.254 (b) 0.3 (c) 0.38 (d) 0.099
  8. 8.What is the value of the digit 8 in 82.496? (a) 8 (b) 0.8 (c) 80 (d) 0.08
  9. 9.1.23 + 2.6 = ? (a) 3.93 (b) 1.49 (c) 3.83 (d) 3.73
  10. 10.4.41 + 7.6 = ? (a) 12.11 (b) 11.91 (c) 12.01 (d) 5.17
  11. 11.Which is the smallest: 0.33, 0.258, 0.013, 0.3? (a) 0.33 (b) 0.258 (c) 0.013 (d) 0.3
  12. 12.2.94 + 1.8 = ? (a) 3.12 (b) 4.74 (c) 4.84 (d) 4.64
  13. 13.Which is the greatest: 0.73, 0.623, 0.7, 0.021? (a) 0.73 (b) 0.623 (c) 0.7 (d) 0.021
  14. 14.4.21 + 5.6 = ? (a) 9.71 (b) 9.81 (c) 9.91 (d) 4.77
  15. 15.7.69 + 5.8 = ? (a) 13.59 (b) 8.27 (c) 13.49 (d) 13.39
  16. 16.What is the value of the digit 8 in 85.614? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  17. 17.3.29 + 4.4 = ? (a) 3.73 (b) 7.79 (c) 7.59 (d) 7.69
  18. 18.What is the value of the digit 5 in 85.132? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  19. 19.2.64 + 7.1 = ? (a) 9.64 (b) 9.74 (c) 9.84 (d) 3.35
  20. 20.What is the value of the digit 4 in 31.487? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  21. 21.Which is the smallest: 0.8, 0.054, 0.84, 0.728? (a) 0.8 (b) 0.054 (c) 0.84 (d) 0.728
  22. 22.Which is the greatest: 0.8, 0.758, 0.045, 0.89? (a) 0.8 (b) 0.758 (c) 0.045 (d) 0.89
  23. 23.What is the value of the digit 5 in 57.621? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  24. 24.What is the value of the digit 2 in 41.327? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  25. 25.8.81 + 8.7 = ? (a) 9.68 (b) 17.51 (c) 17.61 (d) 17.41
  26. 26.Which is the greatest: 0.635, 0.048, 0.7, 0.71? (a) 0.635 (b) 0.048 (c) 0.7 (d) 0.71
  27. 27.Which is the smallest: 0.195, 0.27, 0.2, 0.088? (a) 0.195 (b) 0.27 (c) 0.2 (d) 0.088
  28. 28.What is the value of the digit 7 in 38.571? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  29. 29.What is the value of the digit 3 in 39.274? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  30. 30.What is the value of the digit 9 in 39.218? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  31. 31.1.87 + 4.7 = ? (a) 2.34 (b) 6.47 (c) 6.67 (d) 6.57
  32. 32.Which is the smallest: 0.053, 0.335, 0.43, 0.4? (a) 0.053 (b) 0.335 (c) 0.43 (d) 0.4
  33. 33.Which is the greatest: 0.014, 0.689, 0.7, 0.73? (a) 0.014 (b) 0.689 (c) 0.7 (d) 0.73
  34. 34.What is the value of the digit 6 in 36.452? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  35. 35.What is the value of the digit 4 in 82.345? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  36. 36.Which is the greatest: 0.148, 0.28, 0.2, 0.076? (a) 0.148 (b) 0.28 (c) 0.2 (d) 0.076
  37. 37.What is the value of the digit 3 in 34.169? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  38. 38.Which is the greatest: 0.64, 0.6, 0.558, 0.099? (a) 0.64 (b) 0.6 (c) 0.558 (d) 0.099
  39. 39.Which is the smallest: 0.336, 0.4, 0.063, 0.43? (a) 0.336 (b) 0.4 (c) 0.063 (d) 0.43
  40. 40.9.46 + 9.5 = ? (a) 19.06 (b) 18.86 (c) 18.96 (d) 10.41

Answer key

  1. 0.066
  2. 0.2
  3. 0.7
  4. 0.031
  5. 80
  6. 0.79
  7. 0.38
  8. 80
  9. 3.83
  10. 12.01
  11. 0.013
  12. 4.74
  13. 0.73
  14. 9.81
  15. 13.49
  16. 80
  17. 7.69
  18. 5
  19. 9.74
  20. 0.4
  21. 0.054
  22. 0.89
  23. 50
  24. 0.02
  25. 17.51
  26. 0.71
  27. 0.088
  28. 0.07
  29. 30
  30. 9
  31. 6.57
  32. 0.053
  33. 0.73
  34. 6
  35. 0.04
  36. 0.28
  37. 30
  38. 0.64
  39. 0.063
  40. 18.96

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