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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 73 · 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.What is the value of the digit 5 in 69.547? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  2. 2.2.21 + 5.8 = ? (a) 8.11 (b) 8.01 (c) 7.91 (d) 2.79
  3. 3.5.75 + 1.2 = ? (a) 6.85 (b) 6.95 (c) 5.87 (d) 7.05
  4. 4.What is the value of the digit 7 in 87.316? (a) 70 (b) 0.07 (c) 7 (d) 0.7
  5. 5.What is the value of the digit 6 in 26.453? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  6. 6.4.26 + 4.1 = ? (a) 8.46 (b) 4.67 (c) 8.36 (d) 8.26
  7. 7.8.09 + 1.5 = ? (a) 9.59 (b) 8.24 (c) 9.69 (d) 9.49
  8. 8.1.28 + 3.7 = ? (a) 5.08 (b) 4.88 (c) 1.65 (d) 4.98
  9. 9.What is the value of the digit 2 in 38.261? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  10. 10.4.77 + 6.7 = ? (a) 11.57 (b) 5.44 (c) 11.47 (d) 11.37
  11. 11.4.18 + 5.9 = ? (a) 10.08 (b) 9.98 (c) 10.18 (d) 4.77
  12. 12.9.12 + 2.1 = ? (a) 11.12 (b) 11.22 (c) 11.32 (d) 9.33
  13. 13.What is the value of the digit 2 in 58.241? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  14. 14.Which is the greatest: 0.187, 0.24, 0.2, 0.014? (a) 0.187 (b) 0.24 (c) 0.2 (d) 0.014
  15. 15.What is the value of the digit 3 in 43.187? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  16. 16.2.28 + 7.4 = ? (a) 9.68 (b) 3.02 (c) 9.78 (d) 9.58
  17. 17.Which is the smallest: 0.035, 0.438, 0.57, 0.5? (a) 0.035 (b) 0.438 (c) 0.57 (d) 0.5
  18. 18.What is the value of the digit 5 in 52.498? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  19. 19.Which is the greatest: 0.8, 0.712, 0.072, 0.89? (a) 0.8 (b) 0.712 (c) 0.072 (d) 0.89
  20. 20.7.81 + 3.2 = ? (a) 10.91 (b) 11.01 (c) 8.13 (d) 11.11
  21. 21.7.63 + 9.8 = ? (a) 17.43 (b) 17.33 (c) 17.53 (d) 8.61
  22. 22.What is the value of the digit 5 in 69.548? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  23. 23.What is the value of the digit 5 in 61.853? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  24. 24.4.52 + 3.1 = ? (a) 4.83 (b) 7.52 (c) 7.72 (d) 7.62
  25. 25.Which is the greatest: 0.021, 0.3, 0.293, 0.38? (a) 0.021 (b) 0.3 (c) 0.293 (d) 0.38
  26. 26.8.24 + 9.1 = ? (a) 9.15 (b) 17.24 (c) 17.44 (d) 17.34
  27. 27.8.78 + 2.1 = ? (a) 10.98 (b) 10.78 (c) 8.99 (d) 10.88
  28. 28.7.47 + 5.5 = ? (a) 13.07 (b) 12.97 (c) 12.87 (d) 8.02
  29. 29.2.69 + 2.6 = ? (a) 2.95 (b) 5.29 (c) 5.39 (d) 5.19
  30. 30.Which is the smallest: 0.472, 0.56, 0.012, 0.5? (a) 0.472 (b) 0.56 (c) 0.012 (d) 0.5
  31. 31.6.58 + 8.1 = ? (a) 14.58 (b) 14.78 (c) 14.68 (d) 7.39
  32. 32.What is the value of the digit 5 in 35.912? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  33. 33.4.62 + 1.6 = ? (a) 6.32 (b) 6.22 (c) 6.12 (d) 4.78
  34. 34.Which is the smallest: 0.064, 0.4, 0.352, 0.44? (a) 0.064 (b) 0.4 (c) 0.352 (d) 0.44
  35. 35.9.64 + 6.8 = ? (a) 16.34 (b) 16.44 (c) 10.32 (d) 16.54
  36. 36.What is the value of the digit 3 in 98.361? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  37. 37.4.29 + 7.9 = ? (a) 12.09 (b) 5.08 (c) 12.29 (d) 12.19
  38. 38.Which is the greatest: 0.6, 0.059, 0.61, 0.525? (a) 0.6 (b) 0.059 (c) 0.61 (d) 0.525
  39. 39.What is the value of the digit 6 in 84.691? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  40. 40.What is the value of the digit 1 in 17.543? (a) 1 (b) 0.01 (c) 10 (d) 0.1

Answer key

  1. 0.5
  2. 8.01
  3. 6.95
  4. 7
  5. 6
  6. 8.36
  7. 9.59
  8. 4.98
  9. 0.2
  10. 11.47
  11. 10.08
  12. 11.22
  13. 0.2
  14. 0.24
  15. 3
  16. 9.68
  17. 0.035
  18. 50
  19. 0.89
  20. 11.01
  21. 17.43
  22. 0.5
  23. 0.05
  24. 7.62
  25. 0.38
  26. 17.34
  27. 10.88
  28. 12.97
  29. 5.29
  30. 0.012
  31. 14.68
  32. 5
  33. 6.22
  34. 0.064
  35. 16.44
  36. 0.3
  37. 12.19
  38. 0.61
  39. 0.6
  40. 10

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