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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 568 · 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 6 in 36.549? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  2. 2.2.51 + 3.1 = ? (a) 5.61 (b) 2.82 (c) 5.71 (d) 5.51
  3. 3.Which is the greatest: 0.24, 0.069, 0.184, 0.2? (a) 0.24 (b) 0.069 (c) 0.184 (d) 0.2
  4. 4.1.51 + 3.8 = ? (a) 1.89 (b) 5.41 (c) 5.21 (d) 5.31
  5. 5.5.21 + 5.9 = ? (a) 11.11 (b) 11.01 (c) 11.21 (d) 5.8
  6. 6.6.51 + 7.1 = ? (a) 13.61 (b) 13.71 (c) 7.22 (d) 13.51
  7. 7.Which is the smallest: 0.051, 0.119, 0.2, 0.27? (a) 0.051 (b) 0.119 (c) 0.2 (d) 0.27
  8. 8.What is the value of the digit 1 in 15.397? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  9. 9.What is the value of the digit 1 in 23.815? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  10. 10.Which is the greatest: 0.036, 0.2, 0.25, 0.192? (a) 0.036 (b) 0.2 (c) 0.25 (d) 0.192
  11. 11.What is the value of the digit 8 in 83.246? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  12. 12.What is the value of the digit 8 in 82.751? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  13. 13.Which is the smallest: 0.391, 0.4, 0.015, 0.44? (a) 0.391 (b) 0.4 (c) 0.015 (d) 0.44
  14. 14.Which is the smallest: 0.045, 0.47, 0.316, 0.4? (a) 0.045 (b) 0.47 (c) 0.316 (d) 0.4
  15. 15.What is the value of the digit 4 in 54.612? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  16. 16.What is the value of the digit 6 in 63.754? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  17. 17.Which is the smallest: 0.2, 0.062, 0.26, 0.144? (a) 0.2 (b) 0.062 (c) 0.26 (d) 0.144
  18. 18.3.51 + 5.4 = ? (a) 4.05 (b) 8.81 (c) 8.91 (d) 9.01
  19. 19.What is the value of the digit 6 in 64.321? (a) 60 (b) 0.6 (c) 6 (d) 0.06
  20. 20.6.23 + 5.6 = ? (a) 11.73 (b) 6.79 (c) 11.93 (d) 11.83
  21. 21.Which is the greatest: 0.016, 0.8, 0.729, 0.86? (a) 0.016 (b) 0.8 (c) 0.729 (d) 0.86
  22. 22.4.98 + 1.1 = ? (a) 6.18 (b) 5.98 (c) 6.08 (d) 5.09
  23. 23.What is the value of the digit 1 in 76.159? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  24. 24.What is the value of the digit 1 in 46.371? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  25. 25.Which is the greatest: 0.64, 0.089, 0.6, 0.522? (a) 0.64 (b) 0.089 (c) 0.6 (d) 0.522
  26. 26.Which is the smallest: 0.387, 0.072, 0.49, 0.4? (a) 0.387 (b) 0.072 (c) 0.49 (d) 0.4
  27. 27.Which is the greatest: 0.41, 0.071, 0.388, 0.4? (a) 0.41 (b) 0.071 (c) 0.388 (d) 0.4
  28. 28.9.12 + 5.9 = ? (a) 15.02 (b) 14.92 (c) 15.12 (d) 9.71
  29. 29.9.42 + 1.2 = ? (a) 9.54 (b) 10.52 (c) 10.62 (d) 10.72
  30. 30.5.82 + 2.4 = ? (a) 6.06 (b) 8.22 (c) 8.12 (d) 8.32
  31. 31.2.84 + 3.4 = ? (a) 6.34 (b) 6.14 (c) 3.18 (d) 6.24
  32. 32.Which is the smallest: 0.6, 0.082, 0.61, 0.598? (a) 0.6 (b) 0.082 (c) 0.61 (d) 0.598
  33. 33.What is the value of the digit 4 in 46.521? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  34. 34.What is the value of the digit 1 in 15.329? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  35. 35.2.81 + 7.1 = ? (a) 10.01 (b) 9.81 (c) 9.91 (d) 3.52
  36. 36.What is the value of the digit 3 in 62.753? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  37. 37.Which is the smallest: 0.7, 0.77, 0.052, 0.651? (a) 0.7 (b) 0.77 (c) 0.052 (d) 0.651
  38. 38.Which is the greatest: 0.21, 0.092, 0.122, 0.2? (a) 0.21 (b) 0.092 (c) 0.122 (d) 0.2
  39. 39.Which is the smallest: 0.258, 0.3, 0.36, 0.082? (a) 0.258 (b) 0.3 (c) 0.36 (d) 0.082
  40. 40.Which is the greatest: 0.3, 0.053, 0.38, 0.293? (a) 0.3 (b) 0.053 (c) 0.38 (d) 0.293

Answer key

  1. 6
  2. 5.61
  3. 0.24
  4. 5.31
  5. 11.11
  6. 13.61
  7. 0.051
  8. 10
  9. 0.01
  10. 0.25
  11. 80
  12. 80
  13. 0.015
  14. 0.045
  15. 4
  16. 60
  17. 0.062
  18. 8.91
  19. 60
  20. 11.83
  21. 0.86
  22. 6.08
  23. 0.1
  24. 0.001
  25. 0.64
  26. 0.072
  27. 0.41
  28. 15.02
  29. 10.62
  30. 8.22
  31. 6.24
  32. 0.082
  33. 40
  34. 10
  35. 9.91
  36. 0.003
  37. 0.052
  38. 0.21
  39. 0.082
  40. 0.38

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