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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 384 · 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. 1.3.47 + 2.9 = ? (a) 6.37 (b) 3.76 (c) 6.47 (d) 6.27
  2. 2.What is the value of the digit 6 in 56.827? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  3. 3.What is the value of the digit 3 in 16.349? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  4. 4.1.88 + 6.7 = ? (a) 2.55 (b) 8.68 (c) 8.48 (d) 8.58
  5. 5.5.39 + 1.8 = ? (a) 7.19 (b) 5.57 (c) 7.29 (d) 7.09
  6. 6.What is the value of the digit 5 in 85.763? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  7. 7.Which is the smallest: 0.022, 0.23, 0.2, 0.123? (a) 0.022 (b) 0.23 (c) 0.2 (d) 0.123
  8. 8.3.73 + 5.6 = ? (a) 4.29 (b) 9.23 (c) 9.33 (d) 9.43
  9. 9.Which is the greatest: 0.85, 0.739, 0.058, 0.8? (a) 0.85 (b) 0.739 (c) 0.058 (d) 0.8
  10. 10.1.44 + 3.7 = ? (a) 1.81 (b) 5.04 (c) 5.24 (d) 5.14
  11. 11.What is the value of the digit 8 in 52.897? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08
  12. 12.5.57 + 9.9 = ? (a) 15.57 (b) 6.56 (c) 15.37 (d) 15.47
  13. 13.What is the value of the digit 3 in 92.734? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  14. 14.Which is the smallest: 0.2, 0.167, 0.23, 0.013? (a) 0.2 (b) 0.167 (c) 0.23 (d) 0.013
  15. 15.Which is the smallest: 0.074, 0.7, 0.649, 0.75? (a) 0.074 (b) 0.7 (c) 0.649 (d) 0.75
  16. 16.Which is the greatest: 0.4, 0.339, 0.051, 0.41? (a) 0.4 (b) 0.339 (c) 0.051 (d) 0.41
  17. 17.Which is the greatest: 0.36, 0.3, 0.237, 0.098? (a) 0.36 (b) 0.3 (c) 0.237 (d) 0.098
  18. 18.What is the value of the digit 2 in 59.328? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  19. 19.3.29 + 3.7 = ? (a) 6.89 (b) 3.66 (c) 7.09 (d) 6.99
  20. 20.3.24 + 6.3 = ? (a) 9.54 (b) 3.87 (c) 9.64 (d) 9.44
  21. 21.Which is the smallest: 0.32, 0.094, 0.288, 0.3? (a) 0.32 (b) 0.094 (c) 0.288 (d) 0.3
  22. 22.Which is the greatest: 0.054, 0.5, 0.462, 0.51? (a) 0.054 (b) 0.5 (c) 0.462 (d) 0.51
  23. 23.What is the value of the digit 3 in 48.379? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  24. 24.7.52 + 8.6 = ? (a) 8.38 (b) 16.22 (c) 16.12 (d) 16.02
  25. 25.3.82 + 4.5 = ? (a) 4.27 (b) 8.22 (c) 8.42 (d) 8.32
  26. 26.8.58 + 2.1 = ? (a) 8.79 (b) 10.58 (c) 10.78 (d) 10.68
  27. 27.2.75 + 5.4 = ? (a) 3.29 (b) 8.05 (c) 8.25 (d) 8.15
  28. 28.Which is the greatest: 0.318, 0.41, 0.4, 0.073? (a) 0.318 (b) 0.41 (c) 0.4 (d) 0.073
  29. 29.What is the value of the digit 2 in 86.321? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  30. 30.What is the value of the digit 8 in 93.845? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  31. 31.What is the value of the digit 2 in 28.415? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  32. 32.What is the value of the digit 1 in 13.925? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  33. 33.Which is the greatest: 0.73, 0.066, 0.655, 0.7? (a) 0.73 (b) 0.066 (c) 0.655 (d) 0.7
  34. 34.Which is the smallest: 0.641, 0.7, 0.78, 0.052? (a) 0.641 (b) 0.7 (c) 0.78 (d) 0.052
  35. 35.1.08 + 5.5 = ? (a) 6.58 (b) 1.63 (c) 6.68 (d) 6.48
  36. 36.Which is the smallest: 0.426, 0.51, 0.5, 0.019? (a) 0.426 (b) 0.51 (c) 0.5 (d) 0.019
  37. 37.8.33 + 8.5 = ? (a) 16.93 (b) 16.73 (c) 9.18 (d) 16.83
  38. 38.What is the value of the digit 7 in 41.792? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  39. 39.What is the value of the digit 7 in 17.524? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  40. 40.What is the value of the digit 6 in 67.428? (a) 0.06 (b) 60 (c) 0.6 (d) 6

Answer key

  1. 6.37
  2. 6
  3. 0.3
  4. 8.58
  5. 7.19
  6. 5
  7. 0.022
  8. 9.33
  9. 0.85
  10. 5.14
  11. 0.8
  12. 15.47
  13. 0.03
  14. 0.013
  15. 0.074
  16. 0.41
  17. 0.36
  18. 0.02
  19. 6.99
  20. 9.54
  21. 0.094
  22. 0.51
  23. 0.3
  24. 16.12
  25. 8.32
  26. 10.68
  27. 8.15
  28. 0.41
  29. 0.02
  30. 0.8
  31. 20
  32. 10
  33. 0.73
  34. 0.052
  35. 6.58
  36. 0.019
  37. 16.83
  38. 0.7
  39. 7
  40. 60

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