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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 773 · 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 greatest: 0.52, 0.478, 0.5, 0.044? (a) 0.52 (b) 0.478 (c) 0.5 (d) 0.044
  2. 2.3.61 + 1.9 = ? (a) 3.8 (b) 5.41 (c) 5.61 (d) 5.51
  3. 3.What is the value of the digit 3 in 34.267? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  4. 4.Which is the smallest: 0.085, 0.8, 0.81, 0.721? (a) 0.085 (b) 0.8 (c) 0.81 (d) 0.721
  5. 5.3.08 + 1.3 = ? (a) 4.38 (b) 4.28 (c) 3.21 (d) 4.48
  6. 6.What is the value of the digit 9 in 32.941? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  7. 7.Which is the greatest: 0.757, 0.8, 0.83, 0.015? (a) 0.757 (b) 0.8 (c) 0.83 (d) 0.015
  8. 8.Which is the smallest: 0.061, 0.51, 0.5, 0.434? (a) 0.061 (b) 0.51 (c) 0.5 (d) 0.434
  9. 9.What is the value of the digit 5 in 78.954? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  10. 10.3.33 + 5.2 = ? (a) 8.63 (b) 8.43 (c) 8.53 (d) 3.85
  11. 11.What is the value of the digit 5 in 58.263? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  12. 12.9.92 + 1.7 = ? (a) 10.09 (b) 11.72 (c) 11.52 (d) 11.62
  13. 13.What is the value of the digit 2 in 62.738? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  14. 14.8.68 + 5.5 = ? (a) 14.28 (b) 14.18 (c) 14.08 (d) 9.23
  15. 15.What is the value of the digit 3 in 74.193? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  16. 16.What is the value of the digit 5 in 31.654? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  17. 17.5.27 + 9.6 = ? (a) 6.23 (b) 14.87 (c) 14.97 (d) 14.77
  18. 18.9.76 + 2.2 = ? (a) 12.06 (b) 9.98 (c) 11.86 (d) 11.96
  19. 19.6.61 + 3.1 = ? (a) 9.61 (b) 6.92 (c) 9.71 (d) 9.81
  20. 20.Which is the greatest: 0.48, 0.4, 0.333, 0.091? (a) 0.48 (b) 0.4 (c) 0.333 (d) 0.091
  21. 21.What is the value of the digit 5 in 61.758? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  22. 22.What is the value of the digit 9 in 76.159? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  23. 23.What is the value of the digit 8 in 97.648? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  24. 24.Which is the greatest: 0.766, 0.81, 0.8, 0.057? (a) 0.766 (b) 0.81 (c) 0.8 (d) 0.057
  25. 25.What is the value of the digit 8 in 73.128? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  26. 26.1.41 + 5.7 = ? (a) 7.11 (b) 1.98 (c) 7.01 (d) 7.21
  27. 27.Which is the greatest: 0.029, 0.541, 0.64, 0.6? (a) 0.029 (b) 0.541 (c) 0.64 (d) 0.6
  28. 28.1.21 + 1.5 = ? (a) 2.61 (b) 1.36 (c) 2.81 (d) 2.71
  29. 29.What is the value of the digit 4 in 91.354? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  30. 30.What is the value of the digit 3 in 85.634? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  31. 31.Which is the smallest: 0.682, 0.76, 0.7, 0.038? (a) 0.682 (b) 0.76 (c) 0.7 (d) 0.038
  32. 32.What is the value of the digit 7 in 79.438? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  33. 33.9.01 + 4.5 = ? (a) 13.61 (b) 9.46 (c) 13.51 (d) 13.41
  34. 34.Which is the smallest: 0.5, 0.432, 0.091, 0.52? (a) 0.5 (b) 0.432 (c) 0.091 (d) 0.52
  35. 35.What is the value of the digit 3 in 63.218? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  36. 36.1.74 + 9.2 = ? (a) 10.84 (b) 2.66 (c) 11.04 (d) 10.94
  37. 37.Which is the greatest: 0.011, 0.7, 0.673, 0.71? (a) 0.011 (b) 0.7 (c) 0.673 (d) 0.71
  38. 38.What is the value of the digit 7 in 71.935? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  39. 39.6.11 + 1.2 = ? (a) 7.41 (b) 7.21 (c) 6.23 (d) 7.31
  40. 40.8.68 + 3.1 = ? (a) 8.99 (b) 11.68 (c) 11.88 (d) 11.78

Answer key

  1. 0.52
  2. 5.51
  3. 30
  4. 0.085
  5. 4.38
  6. 0.9
  7. 0.83
  8. 0.061
  9. 0.05
  10. 8.53
  11. 50
  12. 11.62
  13. 2
  14. 14.18
  15. 0.003
  16. 0.05
  17. 14.87
  18. 11.96
  19. 9.71
  20. 0.48
  21. 0.05
  22. 0.009
  23. 0.008
  24. 0.81
  25. 0.008
  26. 7.11
  27. 0.64
  28. 2.71
  29. 0.004
  30. 0.03
  31. 0.038
  32. 70
  33. 13.51
  34. 0.091
  35. 3
  36. 10.94
  37. 0.71
  38. 70
  39. 7.31
  40. 11.78

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