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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 82 · 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: 0.2, 0.21, 0.094, 0.112? (a) 0.2 (b) 0.21 (c) 0.094 (d) 0.112
  2. 2.Which is the greatest: 0.3, 0.095, 0.268, 0.37? (a) 0.3 (b) 0.095 (c) 0.268 (d) 0.37
  3. 3.What is the value of the digit 2 in 38.245? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  4. 4.What is the value of the digit 5 in 54.287? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  5. 5.What is the value of the digit 3 in 18.239? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  6. 6.Which is the smallest: 0.065, 0.352, 0.4, 0.48? (a) 0.065 (b) 0.352 (c) 0.4 (d) 0.48
  7. 7.Which is the smallest: 0.75, 0.659, 0.088, 0.7? (a) 0.75 (b) 0.659 (c) 0.088 (d) 0.7
  8. 8.7.02 + 4.7 = ? (a) 7.49 (b) 11.82 (c) 11.62 (d) 11.72
  9. 9.7.49 + 9.2 = ? (a) 16.59 (b) 16.79 (c) 8.41 (d) 16.69
  10. 10.3.67 + 3.6 = ? (a) 4.03 (b) 7.37 (c) 7.17 (d) 7.27
  11. 11.What is the value of the digit 6 in 52.864? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  12. 12.Which is the smallest: 0.242, 0.3, 0.37, 0.084? (a) 0.242 (b) 0.3 (c) 0.37 (d) 0.084
  13. 13.7.39 + 2.3 = ? (a) 9.69 (b) 9.79 (c) 7.62 (d) 9.59
  14. 14.What is the value of the digit 8 in 24.568? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  15. 15.What is the value of the digit 2 in 17.264? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  16. 16.Which is the greatest: 0.087, 0.155, 0.24, 0.2? (a) 0.087 (b) 0.155 (c) 0.24 (d) 0.2
  17. 17.7.21 + 4.8 = ? (a) 11.91 (b) 12.11 (c) 7.69 (d) 12.01
  18. 18.1.72 + 5.4 = ? (a) 7.12 (b) 7.22 (c) 2.26 (d) 7.02
  19. 19.What is the value of the digit 5 in 25.689? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  20. 20.Which is the smallest: 0.76, 0.034, 0.7, 0.635? (a) 0.76 (b) 0.034 (c) 0.7 (d) 0.635
  21. 21.9.26 + 6.9 = ? (a) 16.16 (b) 16.06 (c) 16.26 (d) 9.95
  22. 22.6.87 + 9.1 = ? (a) 16.07 (b) 7.78 (c) 15.97 (d) 15.87
  23. 23.What is the value of the digit 6 in 76.123? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  24. 24.Which is the greatest: 0.215, 0.077, 0.3, 0.33? (a) 0.215 (b) 0.077 (c) 0.3 (d) 0.33
  25. 25.5.16 + 8.1 = ? (a) 5.97 (b) 13.26 (c) 13.16 (d) 13.36
  26. 26.7.15 + 7.2 = ? (a) 14.25 (b) 14.45 (c) 14.35 (d) 7.87
  27. 27.What is the value of the digit 5 in 65.287? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  28. 28.What is the value of the digit 6 in 14.826? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  29. 29.What is the value of the digit 2 in 28.415? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  30. 30.7.04 + 6.8 = ? (a) 13.94 (b) 13.74 (c) 7.72 (d) 13.84
  31. 31.Which is the smallest: 0.2, 0.088, 0.21, 0.158? (a) 0.2 (b) 0.088 (c) 0.21 (d) 0.158
  32. 32.1.08 + 2.2 = ? (a) 3.38 (b) 3.18 (c) 1.3 (d) 3.28
  33. 33.What is the value of the digit 5 in 23.541? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  34. 34.What is the value of the digit 8 in 24.168? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  35. 35.What is the value of the digit 9 in 13.496? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  36. 36.4.79 + 9.1 = ? (a) 5.7 (b) 13.99 (c) 13.79 (d) 13.89
  37. 37.2.73 + 1.8 = ? (a) 4.63 (b) 2.91 (c) 4.43 (d) 4.53
  38. 38.2.13 + 8.1 = ? (a) 10.23 (b) 10.13 (c) 2.94 (d) 10.33
  39. 39.6.82 + 3.8 = ? (a) 10.72 (b) 10.62 (c) 7.2 (d) 10.52
  40. 40.3.79 + 8.7 = ? (a) 12.49 (b) 4.66 (c) 12.39 (d) 12.59

Answer key

  1. 0.094
  2. 0.37
  3. 0.2
  4. 50
  5. 0.03
  6. 0.065
  7. 0.088
  8. 11.72
  9. 16.69
  10. 7.27
  11. 0.06
  12. 0.084
  13. 9.69
  14. 0.008
  15. 0.2
  16. 0.24
  17. 12.01
  18. 7.12
  19. 5
  20. 0.034
  21. 16.16
  22. 15.97
  23. 6
  24. 0.33
  25. 13.26
  26. 14.35
  27. 5
  28. 0.006
  29. 20
  30. 13.84
  31. 0.088
  32. 3.28
  33. 0.5
  34. 0.008
  35. 0.09
  36. 13.89
  37. 4.53
  38. 10.23
  39. 10.62
  40. 12.49

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