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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 253 · 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: 0.097, 0.467, 0.5, 0.56? (a) 0.097 (b) 0.467 (c) 0.5 (d) 0.56
  2. 2.What is the value of the digit 3 in 24.583? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  3. 3.1.11 + 5.1 = ? (a) 1.62 (b) 6.31 (c) 6.11 (d) 6.21
  4. 4.7.42 + 3.7 = ? (a) 11.12 (b) 11.02 (c) 11.22 (d) 7.79
  5. 5.What is the value of the digit 2 in 59.172? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  6. 6.9.33 + 4.8 = ? (a) 9.81 (b) 14.23 (c) 14.03 (d) 14.13
  7. 7.8.18 + 2.1 = ? (a) 10.38 (b) 8.39 (c) 10.28 (d) 10.18
  8. 8.Which is the greatest: 0.45, 0.019, 0.4, 0.343? (a) 0.45 (b) 0.019 (c) 0.4 (d) 0.343
  9. 9.What is the value of the digit 9 in 34.985? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  10. 10.4.53 + 4.4 = ? (a) 8.83 (b) 4.97 (c) 9.03 (d) 8.93
  11. 11.5.57 + 9.3 = ? (a) 6.5 (b) 14.97 (c) 14.87 (d) 14.77
  12. 12.6.56 + 9.8 = ? (a) 16.26 (b) 7.54 (c) 16.46 (d) 16.36
  13. 13.What is the value of the digit 8 in 87.143? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  14. 14.What is the value of the digit 7 in 74.265? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  15. 15.2.67 + 9.7 = ? (a) 12.27 (b) 3.64 (c) 12.47 (d) 12.37
  16. 16.Which is the smallest: 0.046, 0.85, 0.8, 0.715? (a) 0.046 (b) 0.85 (c) 0.8 (d) 0.715
  17. 17.Which is the smallest: 0.037, 0.4, 0.382, 0.47? (a) 0.037 (b) 0.4 (c) 0.382 (d) 0.47
  18. 18.1.11 + 4.1 = ? (a) 5.31 (b) 5.11 (c) 1.52 (d) 5.21
  19. 19.What is the value of the digit 2 in 18.324? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  20. 20.8.96 + 9.7 = ? (a) 18.56 (b) 18.76 (c) 18.66 (d) 9.93
  21. 21.What is the value of the digit 7 in 57.682? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  22. 22.4.36 + 7.8 = ? (a) 12.16 (b) 12.06 (c) 5.14 (d) 12.26
  23. 23.9.56 + 4.1 = ? (a) 13.76 (b) 9.97 (c) 13.56 (d) 13.66
  24. 24.Which is the greatest: 0.7, 0.75, 0.064, 0.622? (a) 0.7 (b) 0.75 (c) 0.064 (d) 0.622
  25. 25.1.46 + 3.6 = ? (a) 1.82 (b) 5.06 (c) 4.96 (d) 5.16
  26. 26.Which is the smallest: 0.2, 0.052, 0.175, 0.22? (a) 0.2 (b) 0.052 (c) 0.175 (d) 0.22
  27. 27.Which is the greatest: 0.5, 0.016, 0.426, 0.58? (a) 0.5 (b) 0.016 (c) 0.426 (d) 0.58
  28. 28.What is the value of the digit 2 in 94.527? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  29. 29.1.57 + 8.1 = ? (a) 2.38 (b) 9.57 (c) 9.77 (d) 9.67
  30. 30.What is the value of the digit 7 in 53.478? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  31. 31.3.15 + 7.7 = ? (a) 10.75 (b) 10.85 (c) 3.92 (d) 10.95
  32. 32.What is the value of the digit 6 in 29.658? (a) 0.06 (b) 6 (c) 0.6 (d) 0.006
  33. 33.4.32 + 3.2 = ? (a) 7.52 (b) 7.62 (c) 4.64 (d) 7.42
  34. 34.6.81 + 4.7 = ? (a) 11.41 (b) 7.28 (c) 11.51 (d) 11.61
  35. 35.Which is the greatest: 0.656, 0.7, 0.044, 0.72? (a) 0.656 (b) 0.7 (c) 0.044 (d) 0.72
  36. 36.4.56 + 2.7 = ? (a) 4.83 (b) 7.36 (c) 7.26 (d) 7.16
  37. 37.2.39 + 2.1 = ? (a) 4.49 (b) 4.39 (c) 4.59 (d) 2.6
  38. 38.What is the value of the digit 3 in 42.738? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  39. 39.What is the value of the digit 6 in 13.628? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  40. 40.5.43 + 8.3 = ? (a) 6.26 (b) 13.73 (c) 13.83 (d) 13.63

Answer key

  1. 0.097
  2. 0.003
  3. 6.21
  4. 11.12
  5. 0.002
  6. 14.13
  7. 10.28
  8. 0.45
  9. 0.9
  10. 8.93
  11. 14.87
  12. 16.36
  13. 80
  14. 70
  15. 12.37
  16. 0.046
  17. 0.037
  18. 5.21
  19. 0.02
  20. 18.66
  21. 7
  22. 12.16
  23. 13.66
  24. 0.75
  25. 5.06
  26. 0.052
  27. 0.58
  28. 0.02
  29. 9.67
  30. 0.07
  31. 10.85
  32. 0.6
  33. 7.52
  34. 11.51
  35. 0.72
  36. 7.26
  37. 4.49
  38. 0.03
  39. 0.6
  40. 13.73

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