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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 231 · 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 9 in 25.197? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  2. 2.8.19 + 8.6 = ? (a) 16.79 (b) 9.05 (c) 16.69 (d) 16.89
  3. 3.Which is the smallest: 0.047, 0.4, 0.42, 0.323? (a) 0.047 (b) 0.4 (c) 0.42 (d) 0.323
  4. 4.5.62 + 5.4 = ? (a) 11.02 (b) 6.16 (c) 10.92 (d) 11.12
  5. 5.What is the value of the digit 2 in 25.398? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  6. 6.What is the value of the digit 9 in 57.396? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  7. 7.Which is the greatest: 0.082, 0.26, 0.2, 0.154? (a) 0.082 (b) 0.26 (c) 0.2 (d) 0.154
  8. 8.4.55 + 6.1 = ? (a) 10.75 (b) 5.16 (c) 10.65 (d) 10.55
  9. 9.2.01 + 8.8 = ? (a) 10.81 (b) 2.89 (c) 10.91 (d) 10.71
  10. 10.8.71 + 9.4 = ? (a) 18.21 (b) 18.11 (c) 9.65 (d) 18.01
  11. 11.What is the value of the digit 1 in 67.281? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  12. 12.Which is the greatest: 0.2, 0.091, 0.26, 0.177? (a) 0.2 (b) 0.091 (c) 0.26 (d) 0.177
  13. 13.8.09 + 4.9 = ? (a) 8.58 (b) 13.09 (c) 12.89 (d) 12.99
  14. 14.Which is the smallest: 0.019, 0.26, 0.2, 0.127? (a) 0.019 (b) 0.26 (c) 0.2 (d) 0.127
  15. 15.What is the value of the digit 5 in 58.976? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  16. 16.4.16 + 3.7 = ? (a) 7.76 (b) 4.53 (c) 7.86 (d) 7.96
  17. 17.Which is the smallest: 0.8, 0.733, 0.081, 0.89? (a) 0.8 (b) 0.733 (c) 0.081 (d) 0.89
  18. 18.7.41 + 2.6 = ? (a) 7.67 (b) 9.91 (c) 10.11 (d) 10.01
  19. 19.3.43 + 9.6 = ? (a) 12.93 (b) 13.13 (c) 4.39 (d) 13.03
  20. 20.Which is the smallest: 0.2, 0.196, 0.021, 0.21? (a) 0.2 (b) 0.196 (c) 0.021 (d) 0.21
  21. 21.Which is the greatest: 0.31, 0.225, 0.042, 0.3? (a) 0.31 (b) 0.225 (c) 0.042 (d) 0.3
  22. 22.What is the value of the digit 4 in 94.586? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  23. 23.1.24 + 4.2 = ? (a) 5.34 (b) 5.44 (c) 5.54 (d) 1.66
  24. 24.1.45 + 1.2 = ? (a) 2.65 (b) 1.57 (c) 2.55 (d) 2.75
  25. 25.Which is the smallest: 0.362, 0.44, 0.4, 0.031? (a) 0.362 (b) 0.44 (c) 0.4 (d) 0.031
  26. 26.6.53 + 9.1 = ? (a) 15.63 (b) 15.73 (c) 15.53 (d) 7.44
  27. 27.What is the value of the digit 1 in 71.249? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  28. 28.3.64 + 3.7 = ? (a) 7.34 (b) 7.24 (c) 7.44 (d) 4.01
  29. 29.Which is the greatest: 0.28, 0.2, 0.069, 0.193? (a) 0.28 (b) 0.2 (c) 0.069 (d) 0.193
  30. 30.Which is the smallest: 0.3, 0.289, 0.034, 0.36? (a) 0.3 (b) 0.289 (c) 0.034 (d) 0.36
  31. 31.What is the value of the digit 3 in 79.235? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  32. 32.What is the value of the digit 6 in 34.176? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  33. 33.4.86 + 5.2 = ? (a) 10.16 (b) 9.96 (c) 5.38 (d) 10.06
  34. 34.1.57 + 4.4 = ? (a) 5.97 (b) 5.87 (c) 2.01 (d) 6.07
  35. 35.What is the value of the digit 2 in 46.182? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  36. 36.Which is the smallest: 0.222, 0.032, 0.33, 0.3? (a) 0.222 (b) 0.032 (c) 0.33 (d) 0.3
  37. 37.What is the value of the digit 2 in 98.253? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  38. 38.8.39 + 4.3 = ? (a) 12.59 (b) 12.79 (c) 12.69 (d) 8.82
  39. 39.What is the value of the digit 3 in 15.834? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  40. 40.Which is the greatest: 0.212, 0.3, 0.067, 0.37? (a) 0.212 (b) 0.3 (c) 0.067 (d) 0.37

Answer key

  1. 0.09
  2. 16.79
  3. 0.047
  4. 11.02
  5. 20
  6. 0.09
  7. 0.26
  8. 10.65
  9. 10.81
  10. 18.11
  11. 0.001
  12. 0.26
  13. 12.99
  14. 0.019
  15. 50
  16. 7.86
  17. 0.081
  18. 10.01
  19. 13.03
  20. 0.021
  21. 0.31
  22. 4
  23. 5.44
  24. 2.65
  25. 0.031
  26. 15.63
  27. 1
  28. 7.34
  29. 0.28
  30. 0.034
  31. 0.03
  32. 0.006
  33. 10.06
  34. 5.97
  35. 0.002
  36. 0.032
  37. 0.2
  38. 12.69
  39. 0.03
  40. 0.37

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