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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 215 · 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 4 in 43.196? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  2. 2.What is the value of the digit 2 in 86.952? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  3. 3.4.31 + 5.9 = ? (a) 10.11 (b) 10.31 (c) 10.21 (d) 4.9
  4. 4.Which is the greatest: 0.2, 0.23, 0.123, 0.049? (a) 0.2 (b) 0.23 (c) 0.123 (d) 0.049
  5. 5.8.01 + 2.3 = ? (a) 10.21 (b) 8.24 (c) 10.41 (d) 10.31
  6. 6.8.42 + 2.4 = ? (a) 10.92 (b) 10.72 (c) 10.82 (d) 8.66
  7. 7.1.62 + 9.7 = ? (a) 11.32 (b) 11.42 (c) 2.59 (d) 11.22
  8. 8.Which is the greatest: 0.752, 0.87, 0.8, 0.074? (a) 0.752 (b) 0.87 (c) 0.8 (d) 0.074
  9. 9.Which is the smallest: 0.026, 0.7, 0.685, 0.78? (a) 0.026 (b) 0.7 (c) 0.685 (d) 0.78
  10. 10.7.28 + 1.1 = ? (a) 7.39 (b) 8.38 (c) 8.48 (d) 8.28
  11. 11.3.14 + 1.3 = ? (a) 4.34 (b) 3.27 (c) 4.44 (d) 4.54
  12. 12.Which is the greatest: 0.56, 0.412, 0.072, 0.5? (a) 0.56 (b) 0.412 (c) 0.072 (d) 0.5
  13. 13.Which is the greatest: 0.2, 0.21, 0.017, 0.162? (a) 0.2 (b) 0.21 (c) 0.017 (d) 0.162
  14. 14.Which is the greatest: 0.82, 0.063, 0.723, 0.8? (a) 0.82 (b) 0.063 (c) 0.723 (d) 0.8
  15. 15.Which is the greatest: 0.343, 0.059, 0.47, 0.4? (a) 0.343 (b) 0.059 (c) 0.47 (d) 0.4
  16. 16.Which is the greatest: 0.188, 0.27, 0.033, 0.2? (a) 0.188 (b) 0.27 (c) 0.033 (d) 0.2
  17. 17.Which is the smallest: 0.88, 0.017, 0.784, 0.8? (a) 0.88 (b) 0.017 (c) 0.784 (d) 0.8
  18. 18.2.01 + 6.8 = ? (a) 8.71 (b) 8.81 (c) 8.91 (d) 2.69
  19. 19.9.41 + 3.2 = ? (a) 9.73 (b) 12.71 (c) 12.61 (d) 12.51
  20. 20.Which is the greatest: 0.86, 0.737, 0.8, 0.075? (a) 0.86 (b) 0.737 (c) 0.8 (d) 0.075
  21. 21.2.68 + 6.8 = ? (a) 9.38 (b) 3.36 (c) 9.48 (d) 9.58
  22. 22.8.24 + 2.9 = ? (a) 11.24 (b) 11.14 (c) 8.53 (d) 11.04
  23. 23.Which is the greatest: 0.061, 0.85, 0.724, 0.8? (a) 0.061 (b) 0.85 (c) 0.724 (d) 0.8
  24. 24.Which is the smallest: 0.096, 0.6, 0.64, 0.588? (a) 0.096 (b) 0.6 (c) 0.64 (d) 0.588
  25. 25.Which is the greatest: 0.71, 0.627, 0.7, 0.069? (a) 0.71 (b) 0.627 (c) 0.7 (d) 0.069
  26. 26.3.46 + 3.4 = ? (a) 6.76 (b) 6.86 (c) 3.8 (d) 6.96
  27. 27.What is the value of the digit 8 in 38.269? (a) 0.8 (b) 0.08 (c) 80 (d) 8
  28. 28.Which is the smallest: 0.036, 0.732, 0.8, 0.82? (a) 0.036 (b) 0.732 (c) 0.8 (d) 0.82
  29. 29.What is the value of the digit 3 in 36.529? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  30. 30.Which is the smallest: 0.022, 0.36, 0.3, 0.257? (a) 0.022 (b) 0.36 (c) 0.3 (d) 0.257
  31. 31.What is the value of the digit 1 in 51.893? (a) 0.1 (b) 1 (c) 10 (d) 0.01
  32. 32.Which is the greatest: 0.81, 0.038, 0.753, 0.8? (a) 0.81 (b) 0.038 (c) 0.753 (d) 0.8
  33. 33.Which is the greatest: 0.067, 0.8, 0.769, 0.83? (a) 0.067 (b) 0.8 (c) 0.769 (d) 0.83
  34. 34.3.71 + 8.9 = ? (a) 12.61 (b) 12.71 (c) 4.6 (d) 12.51
  35. 35.2.11 + 9.2 = ? (a) 11.21 (b) 11.31 (c) 11.41 (d) 3.03
  36. 36.7.05 + 1.1 = ? (a) 8.05 (b) 8.25 (c) 8.15 (d) 7.16
  37. 37.What is the value of the digit 3 in 21.379? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  38. 38.Which is the greatest: 0.448, 0.027, 0.5, 0.59? (a) 0.448 (b) 0.027 (c) 0.5 (d) 0.59
  39. 39.1.06 + 1.2 = ? (a) 2.16 (b) 2.26 (c) 1.18 (d) 2.36
  40. 40.What is the value of the digit 6 in 36.485? (a) 0.6 (b) 60 (c) 6 (d) 0.06

Answer key

  1. 40
  2. 0.002
  3. 10.21
  4. 0.23
  5. 10.31
  6. 10.82
  7. 11.32
  8. 0.87
  9. 0.026
  10. 8.38
  11. 4.44
  12. 0.56
  13. 0.21
  14. 0.82
  15. 0.47
  16. 0.27
  17. 0.017
  18. 8.81
  19. 12.61
  20. 0.86
  21. 9.48
  22. 11.14
  23. 0.85
  24. 0.096
  25. 0.71
  26. 6.86
  27. 8
  28. 0.036
  29. 30
  30. 0.022
  31. 1
  32. 0.81
  33. 0.83
  34. 12.61
  35. 11.31
  36. 8.15
  37. 0.3
  38. 0.59
  39. 2.26
  40. 6

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