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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 458 · 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: 0.421, 0.093, 0.5, 0.59? (a) 0.421 (b) 0.093 (c) 0.5 (d) 0.59
  2. 2.Which is the greatest: 0.66, 0.6, 0.035, 0.552? (a) 0.66 (b) 0.6 (c) 0.035 (d) 0.552
  3. 3.What is the value of the digit 5 in 19.576? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  4. 4.7.29 + 7.2 = ? (a) 14.39 (b) 8.01 (c) 14.49 (d) 14.59
  5. 5.What is the value of the digit 5 in 25.934? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  6. 6.2.72 + 6.7 = ? (a) 9.42 (b) 9.32 (c) 9.52 (d) 3.39
  7. 7.1.41 + 3.3 = ? (a) 4.81 (b) 4.71 (c) 4.61 (d) 1.74
  8. 8.Which is the smallest: 0.083, 0.32, 0.3, 0.212? (a) 0.083 (b) 0.32 (c) 0.3 (d) 0.212
  9. 9.What is the value of the digit 8 in 84.129? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  10. 10.Which is the greatest: 0.442, 0.51, 0.5, 0.028? (a) 0.442 (b) 0.51 (c) 0.5 (d) 0.028
  11. 11.What is the value of the digit 6 in 36.917? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  12. 12.What is the value of the digit 8 in 98.124? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  13. 13.3.15 + 3.9 = ? (a) 3.54 (b) 6.95 (c) 7.15 (d) 7.05
  14. 14.2.69 + 4.6 = ? (a) 3.15 (b) 7.39 (c) 7.19 (d) 7.29
  15. 15.9.93 + 6.8 = ? (a) 16.63 (b) 16.83 (c) 10.61 (d) 16.73
  16. 16.3.87 + 1.9 = ? (a) 5.87 (b) 5.77 (c) 4.06 (d) 5.67
  17. 17.6.85 + 2.4 = ? (a) 7.09 (b) 9.25 (c) 9.35 (d) 9.15
  18. 18.7.17 + 7.9 = ? (a) 14.97 (b) 15.17 (c) 7.96 (d) 15.07
  19. 19.6.16 + 8.6 = ? (a) 14.86 (b) 14.76 (c) 14.66 (d) 7.02
  20. 20.Which is the smallest: 0.063, 0.46, 0.351, 0.4? (a) 0.063 (b) 0.46 (c) 0.351 (d) 0.4
  21. 21.5.54 + 8.5 = ? (a) 6.39 (b) 14.04 (c) 14.14 (d) 13.94
  22. 22.Which is the greatest: 0.365, 0.41, 0.093, 0.4? (a) 0.365 (b) 0.41 (c) 0.093 (d) 0.4
  23. 23.What is the value of the digit 9 in 58.391? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  24. 24.What is the value of the digit 5 in 23.956? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  25. 25.Which is the smallest: 0.036, 0.584, 0.6, 0.65? (a) 0.036 (b) 0.584 (c) 0.6 (d) 0.65
  26. 26.Which is the greatest: 0.653, 0.7, 0.76, 0.017? (a) 0.653 (b) 0.7 (c) 0.76 (d) 0.017
  27. 27.3.67 + 1.5 = ? (a) 5.27 (b) 5.07 (c) 5.17 (d) 3.82
  28. 28.Which is the smallest: 0.8, 0.711, 0.83, 0.041? (a) 0.8 (b) 0.711 (c) 0.83 (d) 0.041
  29. 29.Which is the smallest: 0.7, 0.029, 0.72, 0.686? (a) 0.7 (b) 0.029 (c) 0.72 (d) 0.686
  30. 30.What is the value of the digit 8 in 65.283? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  31. 31.Which is the smallest: 0.062, 0.7, 0.644, 0.74? (a) 0.062 (b) 0.7 (c) 0.644 (d) 0.74
  32. 32.Which is the smallest: 0.2, 0.077, 0.182, 0.24? (a) 0.2 (b) 0.077 (c) 0.182 (d) 0.24
  33. 33.Which is the smallest: 0.046, 0.467, 0.57, 0.5? (a) 0.046 (b) 0.467 (c) 0.57 (d) 0.5
  34. 34.Which is the greatest: 0.4, 0.44, 0.091, 0.375? (a) 0.4 (b) 0.44 (c) 0.091 (d) 0.375
  35. 35.Which is the smallest: 0.36, 0.3, 0.295, 0.075? (a) 0.36 (b) 0.3 (c) 0.295 (d) 0.075
  36. 36.7.74 + 5.6 = ? (a) 13.24 (b) 13.34 (c) 8.3 (d) 13.44
  37. 37.What is the value of the digit 5 in 46.795? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  38. 38.3.65 + 5.2 = ? (a) 8.75 (b) 8.95 (c) 8.85 (d) 4.17
  39. 39.Which is the greatest: 0.2, 0.024, 0.25, 0.194? (a) 0.2 (b) 0.024 (c) 0.25 (d) 0.194
  40. 40.Which is the greatest: 0.028, 0.242, 0.3, 0.36? (a) 0.028 (b) 0.242 (c) 0.3 (d) 0.36

Answer key

  1. 0.093
  2. 0.66
  3. 0.5
  4. 14.49
  5. 5
  6. 9.42
  7. 4.71
  8. 0.083
  9. 80
  10. 0.51
  11. 6
  12. 8
  13. 7.05
  14. 7.29
  15. 16.73
  16. 5.77
  17. 9.25
  18. 15.07
  19. 14.76
  20. 0.063
  21. 14.04
  22. 0.41
  23. 0.09
  24. 0.05
  25. 0.036
  26. 0.76
  27. 5.17
  28. 0.041
  29. 0.029
  30. 0.08
  31. 0.062
  32. 0.077
  33. 0.046
  34. 0.44
  35. 0.075
  36. 13.34
  37. 0.005
  38. 8.85
  39. 0.25
  40. 0.36

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