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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 119 · 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 2 in 24.518? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  2. 2.What is the value of the digit 3 in 83.619? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  3. 3.6.82 + 9.2 = ? (a) 16.12 (b) 7.74 (c) 16.02 (d) 15.92
  4. 4.Which is the smallest: 0.6, 0.569, 0.011, 0.62? (a) 0.6 (b) 0.569 (c) 0.011 (d) 0.62
  5. 5.Which is the smallest: 0.016, 0.76, 0.682, 0.7? (a) 0.016 (b) 0.76 (c) 0.682 (d) 0.7
  6. 6.4.37 + 6.3 = ? (a) 10.77 (b) 10.57 (c) 10.67 (d) 5
  7. 7.2.31 + 3.7 = ? (a) 6.11 (b) 2.68 (c) 6.01 (d) 5.91
  8. 8.Which is the smallest: 0.154, 0.21, 0.086, 0.2? (a) 0.154 (b) 0.21 (c) 0.086 (d) 0.2
  9. 9.Which is the smallest: 0.3, 0.33, 0.037, 0.216? (a) 0.3 (b) 0.33 (c) 0.037 (d) 0.216
  10. 10.9.03 + 4.3 = ? (a) 9.46 (b) 13.33 (c) 13.23 (d) 13.43
  11. 11.Which is the greatest: 0.256, 0.3, 0.37, 0.018? (a) 0.256 (b) 0.3 (c) 0.37 (d) 0.018
  12. 12.Which is the greatest: 0.7, 0.683, 0.77, 0.031? (a) 0.7 (b) 0.683 (c) 0.77 (d) 0.031
  13. 13.What is the value of the digit 8 in 18.942? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  14. 14.Which is the greatest: 0.749, 0.033, 0.8, 0.85? (a) 0.749 (b) 0.033 (c) 0.8 (d) 0.85
  15. 15.Which is the smallest: 0.7, 0.77, 0.083, 0.671? (a) 0.7 (b) 0.77 (c) 0.083 (d) 0.671
  16. 16.6.65 + 6.5 = ? (a) 13.15 (b) 7.3 (c) 13.25 (d) 13.05
  17. 17.Which is the smallest: 0.2, 0.112, 0.031, 0.21? (a) 0.2 (b) 0.112 (c) 0.031 (d) 0.21
  18. 18.5.51 + 3.1 = ? (a) 5.82 (b) 8.71 (c) 8.51 (d) 8.61
  19. 19.Which is the greatest: 0.774, 0.051, 0.8, 0.89? (a) 0.774 (b) 0.051 (c) 0.8 (d) 0.89
  20. 20.7.05 + 8.1 = ? (a) 15.15 (b) 7.86 (c) 15.25 (d) 15.05
  21. 21.Which is the smallest: 0.679, 0.7, 0.73, 0.097? (a) 0.679 (b) 0.7 (c) 0.73 (d) 0.097
  22. 22.What is the value of the digit 1 in 24.518? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  23. 23.Which is the greatest: 0.032, 0.5, 0.433, 0.53? (a) 0.032 (b) 0.5 (c) 0.433 (d) 0.53
  24. 24.Which is the smallest: 0.074, 0.56, 0.443, 0.5? (a) 0.074 (b) 0.56 (c) 0.443 (d) 0.5
  25. 25.6.44 + 6.1 = ? (a) 12.54 (b) 7.05 (c) 12.44 (d) 12.64
  26. 26.3.59 + 7.1 = ? (a) 10.79 (b) 10.59 (c) 10.69 (d) 4.3
  27. 27.Which is the greatest: 0.181, 0.28, 0.042, 0.2? (a) 0.181 (b) 0.28 (c) 0.042 (d) 0.2
  28. 28.What is the value of the digit 1 in 65.317? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  29. 29.6.81 + 8.2 = ? (a) 14.91 (b) 15.11 (c) 15.01 (d) 7.63
  30. 30.Which is the smallest: 0.028, 0.615, 0.7, 0.75? (a) 0.028 (b) 0.615 (c) 0.7 (d) 0.75
  31. 31.9.85 + 1.1 = ? (a) 9.96 (b) 10.85 (c) 11.05 (d) 10.95
  32. 32.What is the value of the digit 3 in 16.735? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  33. 33.Which is the smallest: 0.675, 0.091, 0.72, 0.7? (a) 0.675 (b) 0.091 (c) 0.72 (d) 0.7
  34. 34.Which is the greatest: 0.615, 0.73, 0.029, 0.7? (a) 0.615 (b) 0.73 (c) 0.029 (d) 0.7
  35. 35.3.59 + 1.3 = ? (a) 4.99 (b) 3.72 (c) 4.89 (d) 4.79
  36. 36.6.01 + 2.3 = ? (a) 8.31 (b) 6.24 (c) 8.41 (d) 8.21
  37. 37.What is the value of the digit 4 in 38.924? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  38. 38.What is the value of the digit 2 in 23.891? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  39. 39.Which is the smallest: 0.2, 0.073, 0.26, 0.132? (a) 0.2 (b) 0.073 (c) 0.26 (d) 0.132
  40. 40.Which is the smallest: 0.29, 0.068, 0.138, 0.2? (a) 0.29 (b) 0.068 (c) 0.138 (d) 0.2

Answer key

  1. 20
  2. 3
  3. 16.02
  4. 0.011
  5. 0.016
  6. 10.67
  7. 6.01
  8. 0.086
  9. 0.037
  10. 13.33
  11. 0.37
  12. 0.77
  13. 8
  14. 0.85
  15. 0.083
  16. 13.15
  17. 0.031
  18. 8.61
  19. 0.89
  20. 15.15
  21. 0.097
  22. 0.01
  23. 0.53
  24. 0.074
  25. 12.54
  26. 10.69
  27. 0.28
  28. 0.01
  29. 15.01
  30. 0.028
  31. 10.95
  32. 0.03
  33. 0.091
  34. 0.73
  35. 4.89
  36. 8.31
  37. 0.004
  38. 20
  39. 0.073
  40. 0.068

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