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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 141 · 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: 0.578, 0.6, 0.66, 0.047? (a) 0.578 (b) 0.6 (c) 0.66 (d) 0.047
  2. 2.What is the value of the digit 2 in 76.248? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  3. 3.Which is the greatest: 0.726, 0.011, 0.81, 0.8? (a) 0.726 (b) 0.011 (c) 0.81 (d) 0.8
  4. 4.What is the value of the digit 5 in 92.715? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  5. 5.4.33 + 2.9 = ? (a) 4.62 (b) 7.33 (c) 7.23 (d) 7.13
  6. 6.2.62 + 6.6 = ? (a) 3.28 (b) 9.12 (c) 9.22 (d) 9.32
  7. 7.Which is the smallest: 0.21, 0.117, 0.2, 0.061? (a) 0.21 (b) 0.117 (c) 0.2 (d) 0.061
  8. 8.What is the value of the digit 3 in 35.849? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  9. 9.Which is the smallest: 0.5, 0.412, 0.56, 0.059? (a) 0.5 (b) 0.412 (c) 0.56 (d) 0.059
  10. 10.What is the value of the digit 8 in 34.829? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  11. 11.Which is the smallest: 0.81, 0.021, 0.8, 0.792? (a) 0.81 (b) 0.021 (c) 0.8 (d) 0.792
  12. 12.What is the value of the digit 2 in 17.824? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  13. 13.Which is the greatest: 0.8, 0.038, 0.84, 0.736? (a) 0.8 (b) 0.038 (c) 0.84 (d) 0.736
  14. 14.What is the value of the digit 8 in 25.384? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  15. 15.What is the value of the digit 7 in 52.647? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  16. 16.Which is the greatest: 0.374, 0.4, 0.054, 0.46? (a) 0.374 (b) 0.4 (c) 0.054 (d) 0.46
  17. 17.6.74 + 8.3 = ? (a) 14.94 (b) 7.57 (c) 15.14 (d) 15.04
  18. 18.Which is the smallest: 0.36, 0.229, 0.043, 0.3? (a) 0.36 (b) 0.229 (c) 0.043 (d) 0.3
  19. 19.Which is the greatest: 0.6, 0.63, 0.071, 0.574? (a) 0.6 (b) 0.63 (c) 0.071 (d) 0.574
  20. 20.9.31 + 1.4 = ? (a) 10.61 (b) 10.81 (c) 10.71 (d) 9.45
  21. 21.Which is the smallest: 0.2, 0.159, 0.026, 0.25? (a) 0.2 (b) 0.159 (c) 0.026 (d) 0.25
  22. 22.What is the value of the digit 5 in 91.235? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  23. 23.5.38 + 6.1 = ? (a) 5.99 (b) 11.38 (c) 11.58 (d) 11.48
  24. 24.2.58 + 9.8 = ? (a) 12.28 (b) 3.56 (c) 12.38 (d) 12.48
  25. 25.1.82 + 6.9 = ? (a) 2.51 (b) 8.72 (c) 8.62 (d) 8.82
  26. 26.Which is the smallest: 0.88, 0.064, 0.763, 0.8? (a) 0.88 (b) 0.064 (c) 0.763 (d) 0.8
  27. 27.Which is the greatest: 0.747, 0.049, 0.85, 0.8? (a) 0.747 (b) 0.049 (c) 0.85 (d) 0.8
  28. 28.What is the value of the digit 6 in 86.249? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  29. 29.6.91 + 7.9 = ? (a) 7.7 (b) 14.81 (c) 14.91 (d) 14.71
  30. 30.Which is the smallest: 0.026, 0.3, 0.31, 0.257? (a) 0.026 (b) 0.3 (c) 0.31 (d) 0.257
  31. 31.Which is the smallest: 0.063, 0.73, 0.7, 0.645? (a) 0.063 (b) 0.73 (c) 0.7 (d) 0.645
  32. 32.3.93 + 6.5 = ? (a) 4.58 (b) 10.43 (c) 10.53 (d) 10.33
  33. 33.1.79 + 7.9 = ? (a) 9.79 (b) 9.69 (c) 2.58 (d) 9.59
  34. 34.Which is the greatest: 0.686, 0.7, 0.026, 0.71? (a) 0.686 (b) 0.7 (c) 0.026 (d) 0.71
  35. 35.6.48 + 5.5 = ? (a) 12.08 (b) 11.88 (c) 11.98 (d) 7.03
  36. 36.3.81 + 7.4 = ? (a) 11.11 (b) 4.55 (c) 11.31 (d) 11.21
  37. 37.5.77 + 7.2 = ? (a) 6.49 (b) 13.07 (c) 12.87 (d) 12.97
  38. 38.What is the value of the digit 7 in 37.689? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  39. 39.Which is the greatest: 0.489, 0.067, 0.5, 0.55? (a) 0.489 (b) 0.067 (c) 0.5 (d) 0.55
  40. 40.Which is the greatest: 0.535, 0.6, 0.066, 0.65? (a) 0.535 (b) 0.6 (c) 0.066 (d) 0.65

Answer key

  1. 0.66
  2. 0.2
  3. 0.81
  4. 0.005
  5. 7.23
  6. 9.22
  7. 0.061
  8. 30
  9. 0.059
  10. 0.8
  11. 0.021
  12. 0.02
  13. 0.84
  14. 0.08
  15. 0.007
  16. 0.46
  17. 15.04
  18. 0.043
  19. 0.63
  20. 10.71
  21. 0.026
  22. 0.005
  23. 11.48
  24. 12.38
  25. 8.72
  26. 0.064
  27. 0.85
  28. 6
  29. 14.81
  30. 0.026
  31. 0.063
  32. 10.43
  33. 9.69
  34. 0.71
  35. 11.98
  36. 11.21
  37. 12.97
  38. 7
  39. 0.55
  40. 0.65

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