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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 21 · 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.Which is the smallest: 0.3, 0.38, 0.232, 0.056? (a) 0.3 (b) 0.38 (c) 0.232 (d) 0.056
  2. 2.What is the value of the digit 8 in 82.534? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  3. 3.1.26 + 1.5 = ? (a) 2.66 (b) 1.41 (c) 2.76 (d) 2.86
  4. 4.Which is the greatest: 0.062, 0.77, 0.665, 0.7? (a) 0.062 (b) 0.77 (c) 0.665 (d) 0.7
  5. 5.3.51 + 7.4 = ? (a) 4.25 (b) 10.91 (c) 10.81 (d) 11.01
  6. 6.What is the value of the digit 8 in 65.842? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  7. 7.7.99 + 2.1 = ? (a) 8.2 (b) 9.99 (c) 10.19 (d) 10.09
  8. 8.Which is the greatest: 0.7, 0.75, 0.687, 0.033? (a) 0.7 (b) 0.75 (c) 0.687 (d) 0.033
  9. 9.What is the value of the digit 4 in 46.938? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  10. 10.4.46 + 3.3 = ? (a) 7.86 (b) 7.76 (c) 4.79 (d) 7.66
  11. 11.8.23 + 7.2 = ? (a) 15.33 (b) 15.53 (c) 15.43 (d) 8.95
  12. 12.7.23 + 5.3 = ? (a) 12.43 (b) 7.76 (c) 12.63 (d) 12.53
  13. 13.9.47 + 2.5 = ? (a) 9.72 (b) 12.07 (c) 11.87 (d) 11.97
  14. 14.3.19 + 2.2 = ? (a) 5.49 (b) 3.41 (c) 5.29 (d) 5.39
  15. 15.Which is the smallest: 0.054, 0.249, 0.31, 0.3? (a) 0.054 (b) 0.249 (c) 0.31 (d) 0.3
  16. 16.Which is the greatest: 0.25, 0.122, 0.012, 0.2? (a) 0.25 (b) 0.122 (c) 0.012 (d) 0.2
  17. 17.Which is the smallest: 0.46, 0.082, 0.327, 0.4? (a) 0.46 (b) 0.082 (c) 0.327 (d) 0.4
  18. 18.Which is the smallest: 0.3, 0.084, 0.213, 0.32? (a) 0.3 (b) 0.084 (c) 0.213 (d) 0.32
  19. 19.Which is the greatest: 0.075, 0.43, 0.4, 0.369? (a) 0.075 (b) 0.43 (c) 0.4 (d) 0.369
  20. 20.What is the value of the digit 9 in 91.543? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  21. 21.9.27 + 6.5 = ? (a) 15.77 (b) 9.92 (c) 15.87 (d) 15.67
  22. 22.Which is the smallest: 0.576, 0.6, 0.61, 0.083? (a) 0.576 (b) 0.6 (c) 0.61 (d) 0.083
  23. 23.6.74 + 3.5 = ? (a) 10.34 (b) 10.24 (c) 7.09 (d) 10.14
  24. 24.Which is the greatest: 0.4, 0.311, 0.025, 0.43? (a) 0.4 (b) 0.311 (c) 0.025 (d) 0.43
  25. 25.8.21 + 2.6 = ? (a) 10.81 (b) 10.71 (c) 8.47 (d) 10.91
  26. 26.Which is the smallest: 0.046, 0.296, 0.38, 0.3? (a) 0.046 (b) 0.296 (c) 0.38 (d) 0.3
  27. 27.What is the value of the digit 8 in 87.429? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  28. 28.What is the value of the digit 7 in 92.173? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  29. 29.2.52 + 6.3 = ? (a) 8.72 (b) 8.92 (c) 3.15 (d) 8.82
  30. 30.3.93 + 4.7 = ? (a) 8.53 (b) 8.63 (c) 8.73 (d) 4.4
  31. 31.Which is the greatest: 0.066, 0.217, 0.3, 0.31? (a) 0.066 (b) 0.217 (c) 0.3 (d) 0.31
  32. 32.4.53 + 7.8 = ? (a) 12.43 (b) 12.33 (c) 12.23 (d) 5.31
  33. 33.4.93 + 6.7 = ? (a) 11.53 (b) 11.63 (c) 11.73 (d) 5.6
  34. 34.Which is the smallest: 0.063, 0.25, 0.2, 0.171? (a) 0.063 (b) 0.25 (c) 0.2 (d) 0.171
  35. 35.7.41 + 3.2 = ? (a) 10.51 (b) 10.71 (c) 7.73 (d) 10.61
  36. 36.What is the value of the digit 8 in 92.318? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  37. 37.Which is the smallest: 0.2, 0.052, 0.26, 0.179? (a) 0.2 (b) 0.052 (c) 0.26 (d) 0.179
  38. 38.What is the value of the digit 9 in 95.248? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  39. 39.What is the value of the digit 6 in 62.543? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  40. 40.Which is the greatest: 0.86, 0.8, 0.053, 0.782? (a) 0.86 (b) 0.8 (c) 0.053 (d) 0.782

Answer key

  1. 0.056
  2. 80
  3. 2.76
  4. 0.77
  5. 10.91
  6. 0.8
  7. 10.09
  8. 0.75
  9. 40
  10. 7.76
  11. 15.43
  12. 12.53
  13. 11.97
  14. 5.39
  15. 0.054
  16. 0.25
  17. 0.082
  18. 0.084
  19. 0.43
  20. 90
  21. 15.77
  22. 0.083
  23. 10.24
  24. 0.43
  25. 10.81
  26. 0.046
  27. 80
  28. 0.07
  29. 8.82
  30. 8.63
  31. 0.31
  32. 12.33
  33. 11.63
  34. 0.063
  35. 10.61
  36. 0.008
  37. 0.052
  38. 90
  39. 60
  40. 0.86

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