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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 855 · 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. 1.3.71 + 7.1 = ? (a) 4.42 (b) 10.81 (c) 10.71 (d) 10.91
  2. 2.What is the value of the digit 2 in 42.738? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  3. 3.8.22 + 3.3 = ? (a) 8.55 (b) 11.42 (c) 11.52 (d) 11.62
  4. 4.2.77 + 2.5 = ? (a) 5.37 (b) 5.27 (c) 3.02 (d) 5.17
  5. 5.Which is the smallest: 0.67, 0.033, 0.524, 0.6? (a) 0.67 (b) 0.033 (c) 0.524 (d) 0.6
  6. 6.What is the value of the digit 8 in 91.738? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  7. 7.2.19 + 4.5 = ? (a) 6.79 (b) 2.64 (c) 6.69 (d) 6.59
  8. 8.Which is the smallest: 0.042, 0.62, 0.527, 0.6? (a) 0.042 (b) 0.62 (c) 0.527 (d) 0.6
  9. 9.Which is the greatest: 0.034, 0.6, 0.61, 0.598? (a) 0.034 (b) 0.6 (c) 0.61 (d) 0.598
  10. 10.7.15 + 7.2 = ? (a) 14.45 (b) 14.25 (c) 7.87 (d) 14.35
  11. 11.What is the value of the digit 2 in 13.257? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  12. 12.5.18 + 9.3 = ? (a) 6.11 (b) 14.48 (c) 14.38 (d) 14.58
  13. 13.What is the value of the digit 3 in 36.784? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  14. 14.3.07 + 4.7 = ? (a) 7.87 (b) 7.67 (c) 3.54 (d) 7.77
  15. 15.What is the value of the digit 7 in 67.324? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  16. 16.Which is the smallest: 0.039, 0.44, 0.4, 0.386? (a) 0.039 (b) 0.44 (c) 0.4 (d) 0.386
  17. 17.What is the value of the digit 2 in 27.136? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  18. 18.What is the value of the digit 7 in 27.658? (a) 0.7 (b) 0.07 (c) 70 (d) 7
  19. 19.7.54 + 3.4 = ? (a) 7.88 (b) 10.84 (c) 11.04 (d) 10.94
  20. 20.What is the value of the digit 3 in 72.683? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  21. 21.What is the value of the digit 6 in 89.236? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  22. 22.9.66 + 7.1 = ? (a) 10.37 (b) 16.76 (c) 16.86 (d) 16.66
  23. 23.What is the value of the digit 7 in 28.754? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  24. 24.1.34 + 9.3 = ? (a) 10.64 (b) 2.27 (c) 10.74 (d) 10.54
  25. 25.Which is the smallest: 0.015, 0.319, 0.4, 0.44? (a) 0.015 (b) 0.319 (c) 0.4 (d) 0.44
  26. 26.Which is the greatest: 0.6, 0.095, 0.589, 0.68? (a) 0.6 (b) 0.095 (c) 0.589 (d) 0.68
  27. 27.What is the value of the digit 8 in 32.684? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  28. 28.Which is the greatest: 0.774, 0.068, 0.8, 0.88? (a) 0.774 (b) 0.068 (c) 0.8 (d) 0.88
  29. 29.Which is the smallest: 0.89, 0.033, 0.8, 0.752? (a) 0.89 (b) 0.033 (c) 0.8 (d) 0.752
  30. 30.What is the value of the digit 7 in 67.429? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  31. 31.Which is the smallest: 0.2, 0.178, 0.018, 0.26? (a) 0.2 (b) 0.178 (c) 0.018 (d) 0.26
  32. 32.Which is the smallest: 0.063, 0.6, 0.61, 0.547? (a) 0.063 (b) 0.6 (c) 0.61 (d) 0.547
  33. 33.Which is the smallest: 0.52, 0.453, 0.5, 0.081? (a) 0.52 (b) 0.453 (c) 0.5 (d) 0.081
  34. 34.Which is the smallest: 0.338, 0.48, 0.047, 0.4? (a) 0.338 (b) 0.48 (c) 0.047 (d) 0.4
  35. 35.7.74 + 2.2 = ? (a) 10.04 (b) 9.94 (c) 7.96 (d) 9.84
  36. 36.7.67 + 7.8 = ? (a) 15.57 (b) 15.37 (c) 8.45 (d) 15.47
  37. 37.What is the value of the digit 3 in 83.219? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  38. 38.What is the value of the digit 9 in 63.597? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  39. 39.What is the value of the digit 8 in 68.954? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  40. 40.6.41 + 4.4 = ? (a) 6.85 (b) 10.81 (c) 10.91 (d) 10.71

Answer key

  1. 10.81
  2. 2
  3. 11.52
  4. 5.27
  5. 0.033
  6. 0.008
  7. 6.69
  8. 0.042
  9. 0.61
  10. 14.35
  11. 0.2
  12. 14.48
  13. 30
  14. 7.77
  15. 7
  16. 0.039
  17. 20
  18. 7
  19. 10.94
  20. 0.003
  21. 0.006
  22. 16.76
  23. 0.7
  24. 10.64
  25. 0.015
  26. 0.68
  27. 0.08
  28. 0.88
  29. 0.033
  30. 7
  31. 0.018
  32. 0.063
  33. 0.081
  34. 0.047
  35. 9.94
  36. 15.47
  37. 3
  38. 0.09
  39. 8
  40. 10.81

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