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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 207 · 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. 1.9.31 + 9.5 = ? (a) 18.81 (b) 10.26 (c) 18.91 (d) 18.71
  2. 2.What is the value of the digit 5 in 48.925? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  3. 3.3.91 + 1.4 = ? (a) 5.21 (b) 4.05 (c) 5.41 (d) 5.31
  4. 4.3.02 + 1.3 = ? (a) 4.22 (b) 4.42 (c) 3.15 (d) 4.32
  5. 5.7.01 + 2.1 = ? (a) 7.22 (b) 9.01 (c) 9.11 (d) 9.21
  6. 6.What is the value of the digit 6 in 97.526? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  7. 7.Which is the greatest: 0.037, 0.54, 0.472, 0.5? (a) 0.037 (b) 0.54 (c) 0.472 (d) 0.5
  8. 8.5.33 + 8.6 = ? (a) 13.83 (b) 13.93 (c) 14.03 (d) 6.19
  9. 9.What is the value of the digit 8 in 61.278? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  10. 10.3.24 + 5.6 = ? (a) 3.8 (b) 8.74 (c) 8.84 (d) 8.94
  11. 11.8.66 + 9.2 = ? (a) 9.58 (b) 17.86 (c) 17.76 (d) 17.96
  12. 12.1.16 + 3.2 = ? (a) 4.36 (b) 4.46 (c) 4.26 (d) 1.48
  13. 13.3.09 + 9.9 = ? (a) 4.08 (b) 12.99 (c) 12.89 (d) 13.09
  14. 14.7.61 + 9.6 = ? (a) 17.11 (b) 17.31 (c) 17.21 (d) 8.57
  15. 15.8.07 + 9.8 = ? (a) 17.77 (b) 17.87 (c) 17.97 (d) 9.05
  16. 16.Which is the greatest: 0.787, 0.053, 0.83, 0.8? (a) 0.787 (b) 0.053 (c) 0.83 (d) 0.8
  17. 17.5.17 + 5.3 = ? (a) 10.57 (b) 5.7 (c) 10.37 (d) 10.47
  18. 18.What is the value of the digit 1 in 62.841? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  19. 19.1.71 + 8.5 = ? (a) 2.56 (b) 10.11 (c) 10.21 (d) 10.31
  20. 20.Which is the smallest: 0.479, 0.59, 0.036, 0.5? (a) 0.479 (b) 0.59 (c) 0.036 (d) 0.5
  21. 21.1.09 + 3.2 = ? (a) 1.41 (b) 4.39 (c) 4.19 (d) 4.29
  22. 22.What is the value of the digit 1 in 18.632? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  23. 23.Which is the greatest: 0.6, 0.022, 0.64, 0.561? (a) 0.6 (b) 0.022 (c) 0.64 (d) 0.561
  24. 24.What is the value of the digit 5 in 58.431? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  25. 25.What is the value of the digit 2 in 12.938? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  26. 26.What is the value of the digit 9 in 16.439? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  27. 27.8.33 + 1.5 = ? (a) 8.48 (b) 9.73 (c) 9.83 (d) 9.93
  28. 28.2.52 + 1.7 = ? (a) 2.69 (b) 4.22 (c) 4.32 (d) 4.12
  29. 29.2.17 + 9.9 = ? (a) 3.16 (b) 12.07 (c) 11.97 (d) 12.17
  30. 30.4.42 + 6.1 = ? (a) 10.52 (b) 10.42 (c) 10.62 (d) 5.03
  31. 31.What is the value of the digit 2 in 95.214? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  32. 32.What is the value of the digit 7 in 87.456? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  33. 33.Which is the smallest: 0.077, 0.3, 0.31, 0.243? (a) 0.077 (b) 0.3 (c) 0.31 (d) 0.243
  34. 34.Which is the greatest: 0.54, 0.417, 0.5, 0.029? (a) 0.54 (b) 0.417 (c) 0.5 (d) 0.029
  35. 35.Which is the greatest: 0.015, 0.114, 0.2, 0.26? (a) 0.015 (b) 0.114 (c) 0.2 (d) 0.26
  36. 36.3.38 + 3.4 = ? (a) 3.72 (b) 6.78 (c) 6.88 (d) 6.68
  37. 37.Which is the greatest: 0.333, 0.43, 0.012, 0.4? (a) 0.333 (b) 0.43 (c) 0.012 (d) 0.4
  38. 38.Which is the greatest: 0.2, 0.131, 0.28, 0.062? (a) 0.2 (b) 0.131 (c) 0.28 (d) 0.062
  39. 39.What is the value of the digit 2 in 12.384? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  40. 40.What is the value of the digit 6 in 56.349? (a) 6 (b) 0.6 (c) 60 (d) 0.06

Answer key

  1. 18.81
  2. 0.005
  3. 5.31
  4. 4.32
  5. 9.11
  6. 0.006
  7. 0.54
  8. 13.93
  9. 0.008
  10. 8.84
  11. 17.86
  12. 4.36
  13. 12.99
  14. 17.21
  15. 17.87
  16. 0.83
  17. 10.47
  18. 0.001
  19. 10.21
  20. 0.036
  21. 4.29
  22. 10
  23. 0.64
  24. 50
  25. 2
  26. 0.009
  27. 9.83
  28. 4.22
  29. 12.07
  30. 10.52
  31. 0.2
  32. 7
  33. 0.077
  34. 0.54
  35. 0.26
  36. 6.78
  37. 0.43
  38. 0.28
  39. 2
  40. 6

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