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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 301 · 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 62.819? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  2. 2.Which is the smallest: 0.55, 0.016, 0.411, 0.5? (a) 0.55 (b) 0.016 (c) 0.411 (d) 0.5
  3. 3.Which is the greatest: 0.21, 0.2, 0.132, 0.096? (a) 0.21 (b) 0.2 (c) 0.132 (d) 0.096
  4. 4.4.41 + 2.1 = ? (a) 4.62 (b) 6.51 (c) 6.41 (d) 6.61
  5. 5.Which is the greatest: 0.439, 0.091, 0.5, 0.53? (a) 0.439 (b) 0.091 (c) 0.5 (d) 0.53
  6. 6.5.74 + 5.2 = ? (a) 6.26 (b) 11.04 (c) 10.94 (d) 10.84
  7. 7.Which is the greatest: 0.683, 0.72, 0.013, 0.7? (a) 0.683 (b) 0.72 (c) 0.013 (d) 0.7
  8. 8.Which is the greatest: 0.43, 0.379, 0.072, 0.4? (a) 0.43 (b) 0.379 (c) 0.072 (d) 0.4
  9. 9.8.17 + 2.6 = ? (a) 10.67 (b) 10.77 (c) 8.43 (d) 10.87
  10. 10.5.73 + 3.1 = ? (a) 8.93 (b) 6.04 (c) 8.83 (d) 8.73
  11. 11.Which is the smallest: 0.53, 0.067, 0.5, 0.467? (a) 0.53 (b) 0.067 (c) 0.5 (d) 0.467
  12. 12.2.22 + 3.1 = ? (a) 5.42 (b) 5.22 (c) 5.32 (d) 2.53
  13. 13.Which is the greatest: 0.087, 0.22, 0.113, 0.2? (a) 0.087 (b) 0.22 (c) 0.113 (d) 0.2
  14. 14.Which is the greatest: 0.55, 0.417, 0.5, 0.066? (a) 0.55 (b) 0.417 (c) 0.5 (d) 0.066
  15. 15.4.95 + 6.3 = ? (a) 11.35 (b) 11.15 (c) 11.25 (d) 5.58
  16. 16.Which is the greatest: 0.66, 0.525, 0.091, 0.6? (a) 0.66 (b) 0.525 (c) 0.091 (d) 0.6
  17. 17.Which is the smallest: 0.586, 0.087, 0.62, 0.6? (a) 0.586 (b) 0.087 (c) 0.62 (d) 0.6
  18. 18.7.69 + 2.6 = ? (a) 10.19 (b) 10.29 (c) 7.95 (d) 10.39
  19. 19.7.54 + 5.1 = ? (a) 12.54 (b) 8.05 (c) 12.64 (d) 12.74
  20. 20.What is the value of the digit 6 in 53.146? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  21. 21.What is the value of the digit 8 in 89.156? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  22. 22.Which is the smallest: 0.146, 0.065, 0.2, 0.29? (a) 0.146 (b) 0.065 (c) 0.2 (d) 0.29
  23. 23.What is the value of the digit 8 in 23.518? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  24. 24.Which is the greatest: 0.89, 0.732, 0.8, 0.044? (a) 0.89 (b) 0.732 (c) 0.8 (d) 0.044
  25. 25.9.05 + 3.6 = ? (a) 12.55 (b) 12.75 (c) 9.41 (d) 12.65
  26. 26.Which is the greatest: 0.2, 0.096, 0.24, 0.143? (a) 0.2 (b) 0.096 (c) 0.24 (d) 0.143
  27. 27.Which is the smallest: 0.37, 0.3, 0.099, 0.279? (a) 0.37 (b) 0.3 (c) 0.099 (d) 0.279
  28. 28.1.76 + 3.2 = ? (a) 4.86 (b) 5.06 (c) 4.96 (d) 2.08
  29. 29.What is the value of the digit 5 in 54.623? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  30. 30.Which is the greatest: 0.028, 0.68, 0.6, 0.589? (a) 0.028 (b) 0.68 (c) 0.6 (d) 0.589
  31. 31.Which is the greatest: 0.6, 0.518, 0.64, 0.066? (a) 0.6 (b) 0.518 (c) 0.64 (d) 0.066
  32. 32.1.31 + 4.4 = ? (a) 5.61 (b) 5.71 (c) 1.75 (d) 5.81
  33. 33.4.45 + 2.6 = ? (a) 7.15 (b) 4.71 (c) 6.95 (d) 7.05
  34. 34.Which is the smallest: 0.31, 0.068, 0.219, 0.3? (a) 0.31 (b) 0.068 (c) 0.219 (d) 0.3
  35. 35.2.74 + 1.7 = ? (a) 2.91 (b) 4.44 (c) 4.54 (d) 4.34
  36. 36.What is the value of the digit 6 in 65.783? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  37. 37.7.18 + 3.4 = ? (a) 10.68 (b) 10.48 (c) 10.58 (d) 7.52
  38. 38.Which is the smallest: 0.077, 0.2, 0.143, 0.25? (a) 0.077 (b) 0.2 (c) 0.143 (d) 0.25
  39. 39.Which is the smallest: 0.791, 0.027, 0.89, 0.8? (a) 0.791 (b) 0.027 (c) 0.89 (d) 0.8
  40. 40.Which is the greatest: 0.326, 0.41, 0.4, 0.023? (a) 0.326 (b) 0.41 (c) 0.4 (d) 0.023

Answer key

  1. 0.009
  2. 0.016
  3. 0.21
  4. 6.51
  5. 0.53
  6. 10.94
  7. 0.72
  8. 0.43
  9. 10.77
  10. 8.83
  11. 0.067
  12. 5.32
  13. 0.22
  14. 0.55
  15. 11.25
  16. 0.66
  17. 0.087
  18. 10.29
  19. 12.64
  20. 0.006
  21. 80
  22. 0.065
  23. 0.008
  24. 0.89
  25. 12.65
  26. 0.24
  27. 0.099
  28. 4.96
  29. 50
  30. 0.68
  31. 0.64
  32. 5.71
  33. 7.05
  34. 0.068
  35. 4.44
  36. 60
  37. 10.58
  38. 0.077
  39. 0.027
  40. 0.41

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