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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 152 · 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 2 in 63.218? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  2. 2.What is the value of the digit 4 in 34.195? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  3. 3.2.19 + 5.1 = ? (a) 2.7 (b) 7.39 (c) 7.29 (d) 7.19
  4. 4.3.73 + 6.5 = ? (a) 10.33 (b) 10.23 (c) 10.13 (d) 4.38
  5. 5.Which is the smallest: 0.6, 0.66, 0.032, 0.563? (a) 0.6 (b) 0.66 (c) 0.032 (d) 0.563
  6. 6.6.08 + 8.9 = ? (a) 14.98 (b) 6.97 (c) 14.88 (d) 15.08
  7. 7.7.32 + 5.8 = ? (a) 13.02 (b) 13.22 (c) 13.12 (d) 7.9
  8. 8.What is the value of the digit 9 in 39.821? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  9. 9.Which is the smallest: 0.779, 0.046, 0.8, 0.85? (a) 0.779 (b) 0.046 (c) 0.8 (d) 0.85
  10. 10.9.19 + 2.4 = ? (a) 11.49 (b) 11.69 (c) 9.43 (d) 11.59
  11. 11.Which is the smallest: 0.6, 0.052, 0.531, 0.66? (a) 0.6 (b) 0.052 (c) 0.531 (d) 0.66
  12. 12.7.11 + 2.1 = ? (a) 9.31 (b) 9.11 (c) 7.32 (d) 9.21
  13. 13.What is the value of the digit 1 in 43.156? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  14. 14.Which is the greatest: 0.223, 0.31, 0.045, 0.3? (a) 0.223 (b) 0.31 (c) 0.045 (d) 0.3
  15. 15.6.67 + 4.4 = ? (a) 7.11 (b) 10.97 (c) 11.07 (d) 11.17
  16. 16.Which is the smallest: 0.8, 0.085, 0.788, 0.82? (a) 0.8 (b) 0.085 (c) 0.788 (d) 0.82
  17. 17.What is the value of the digit 7 in 57.836? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  18. 18.Which is the greatest: 0.5, 0.094, 0.51, 0.453? (a) 0.5 (b) 0.094 (c) 0.51 (d) 0.453
  19. 19.6.36 + 9.1 = ? (a) 15.56 (b) 15.46 (c) 15.36 (d) 7.27
  20. 20.1.25 + 3.3 = ? (a) 4.45 (b) 4.55 (c) 1.58 (d) 4.65
  21. 21.8.42 + 6.9 = ? (a) 9.11 (b) 15.22 (c) 15.42 (d) 15.32
  22. 22.1.94 + 3.6 = ? (a) 5.64 (b) 5.54 (c) 2.3 (d) 5.44
  23. 23.What is the value of the digit 9 in 68.497? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  24. 24.Which is the greatest: 0.325, 0.035, 0.4, 0.49? (a) 0.325 (b) 0.035 (c) 0.4 (d) 0.49
  25. 25.1.68 + 5.8 = ? (a) 2.26 (b) 7.58 (c) 7.38 (d) 7.48
  26. 26.What is the value of the digit 9 in 63.495? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  27. 27.Which is the greatest: 0.012, 0.37, 0.3, 0.242? (a) 0.012 (b) 0.37 (c) 0.3 (d) 0.242
  28. 28.9.06 + 9.5 = ? (a) 10.01 (b) 18.46 (c) 18.66 (d) 18.56
  29. 29.Which is the smallest: 0.335, 0.49, 0.4, 0.043? (a) 0.335 (b) 0.49 (c) 0.4 (d) 0.043
  30. 30.5.82 + 4.7 = ? (a) 10.42 (b) 10.62 (c) 10.52 (d) 6.29
  31. 31.What is the value of the digit 7 in 17.326? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  32. 32.Which is the smallest: 0.046, 0.316, 0.49, 0.4? (a) 0.046 (b) 0.316 (c) 0.49 (d) 0.4
  33. 33.What is the value of the digit 5 in 58.167? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  34. 34.1.93 + 3.5 = ? (a) 5.53 (b) 5.43 (c) 2.28 (d) 5.33
  35. 35.Which is the smallest: 0.249, 0.3, 0.35, 0.048? (a) 0.249 (b) 0.3 (c) 0.35 (d) 0.048
  36. 36.Which is the greatest: 0.49, 0.368, 0.4, 0.082? (a) 0.49 (b) 0.368 (c) 0.4 (d) 0.082
  37. 37.What is the value of the digit 2 in 45.629? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  38. 38.2.07 + 9.4 = ? (a) 11.47 (b) 11.37 (c) 11.57 (d) 3.01
  39. 39.What is the value of the digit 5 in 84.295? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  40. 40.Which is the smallest: 0.291, 0.3, 0.35, 0.056? (a) 0.291 (b) 0.3 (c) 0.35 (d) 0.056

Answer key

  1. 0.2
  2. 4
  3. 7.29
  4. 10.23
  5. 0.032
  6. 14.98
  7. 13.12
  8. 9
  9. 0.046
  10. 11.59
  11. 0.052
  12. 9.21
  13. 0.1
  14. 0.31
  15. 11.07
  16. 0.085
  17. 7
  18. 0.51
  19. 15.46
  20. 4.55
  21. 15.32
  22. 5.54
  23. 0.09
  24. 0.49
  25. 7.48
  26. 0.09
  27. 0.37
  28. 18.56
  29. 0.043
  30. 10.52
  31. 7
  32. 0.046
  33. 50
  34. 5.43
  35. 0.048
  36. 0.49
  37. 0.02
  38. 11.47
  39. 0.005
  40. 0.056

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