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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 445 · 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: 0.69, 0.586, 0.032, 0.6? (a) 0.69 (b) 0.586 (c) 0.032 (d) 0.6
  2. 2.5.98 + 7.8 = ? (a) 6.76 (b) 13.78 (c) 13.68 (d) 13.88
  3. 3.9.91 + 2.4 = ? (a) 12.21 (b) 12.41 (c) 10.15 (d) 12.31
  4. 4.What is the value of the digit 4 in 47.896? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  5. 5.What is the value of the digit 1 in 17.239? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  6. 6.4.23 + 5.3 = ? (a) 4.76 (b) 9.53 (c) 9.43 (d) 9.63
  7. 7.Which is the smallest: 0.35, 0.249, 0.3, 0.043? (a) 0.35 (b) 0.249 (c) 0.3 (d) 0.043
  8. 8.8.41 + 4.3 = ? (a) 12.61 (b) 12.81 (c) 8.84 (d) 12.71
  9. 9.1.24 + 4.7 = ? (a) 6.04 (b) 5.84 (c) 1.71 (d) 5.94
  10. 10.Which is the greatest: 0.63, 0.071, 0.583, 0.6? (a) 0.63 (b) 0.071 (c) 0.583 (d) 0.6
  11. 11.What is the value of the digit 8 in 34.982? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  12. 12.3.21 + 2.6 = ? (a) 5.71 (b) 3.47 (c) 5.91 (d) 5.81
  13. 13.Which is the smallest: 0.5, 0.56, 0.459, 0.066? (a) 0.5 (b) 0.56 (c) 0.459 (d) 0.066
  14. 14.What is the value of the digit 6 in 14.762? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  15. 15.Which is the greatest: 0.4, 0.035, 0.48, 0.356? (a) 0.4 (b) 0.035 (c) 0.48 (d) 0.356
  16. 16.What is the value of the digit 9 in 42.859? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  17. 17.1.85 + 6.2 = ? (a) 2.47 (b) 8.05 (c) 7.95 (d) 8.15
  18. 18.What is the value of the digit 2 in 92.375? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  19. 19.What is the value of the digit 6 in 96.824? (a) 0.06 (b) 60 (c) 0.6 (d) 6
  20. 20.6.41 + 1.8 = ? (a) 8.11 (b) 6.59 (c) 8.21 (d) 8.31
  21. 21.What is the value of the digit 7 in 15.437? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  22. 22.What is the value of the digit 9 in 62.579? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  23. 23.Which is the greatest: 0.52, 0.034, 0.475, 0.5? (a) 0.52 (b) 0.034 (c) 0.475 (d) 0.5
  24. 24.9.45 + 9.2 = ? (a) 18.75 (b) 10.37 (c) 18.55 (d) 18.65
  25. 25.Which is the smallest: 0.295, 0.3, 0.029, 0.31? (a) 0.295 (b) 0.3 (c) 0.029 (d) 0.31
  26. 26.Which is the smallest: 0.035, 0.181, 0.22, 0.2? (a) 0.035 (b) 0.181 (c) 0.22 (d) 0.2
  27. 27.What is the value of the digit 6 in 65.981? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  28. 28.What is the value of the digit 4 in 14.528? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  29. 29.5.03 + 1.5 = ? (a) 6.43 (b) 5.18 (c) 6.63 (d) 6.53
  30. 30.9.94 + 4.2 = ? (a) 14.04 (b) 14.24 (c) 10.36 (d) 14.14
  31. 31.Which is the greatest: 0.024, 0.633, 0.7, 0.77? (a) 0.024 (b) 0.633 (c) 0.7 (d) 0.77
  32. 32.What is the value of the digit 2 in 62.981? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  33. 33.Which is the smallest: 0.371, 0.4, 0.098, 0.49? (a) 0.371 (b) 0.4 (c) 0.098 (d) 0.49
  34. 34.Which is the greatest: 0.095, 0.6, 0.63, 0.563? (a) 0.095 (b) 0.6 (c) 0.63 (d) 0.563
  35. 35.2.51 + 1.7 = ? (a) 4.31 (b) 2.68 (c) 4.11 (d) 4.21
  36. 36.6.73 + 5.8 = ? (a) 12.53 (b) 12.63 (c) 7.31 (d) 12.43
  37. 37.8.53 + 6.3 = ? (a) 14.93 (b) 14.73 (c) 9.16 (d) 14.83
  38. 38.4.11 + 2.6 = ? (a) 6.71 (b) 6.61 (c) 6.81 (d) 4.37
  39. 39.9.01 + 8.1 = ? (a) 17.01 (b) 9.82 (c) 17.11 (d) 17.21
  40. 40.Which is the smallest: 0.032, 0.766, 0.8, 0.82? (a) 0.032 (b) 0.766 (c) 0.8 (d) 0.82

Answer key

  1. 0.69
  2. 13.78
  3. 12.31
  4. 40
  5. 10
  6. 9.53
  7. 0.043
  8. 12.71
  9. 5.94
  10. 0.63
  11. 0.08
  12. 5.81
  13. 0.066
  14. 0.06
  15. 0.48
  16. 0.009
  17. 8.05
  18. 2
  19. 6
  20. 8.21
  21. 0.007
  22. 0.009
  23. 0.52
  24. 18.65
  25. 0.029
  26. 0.035
  27. 60
  28. 4
  29. 6.53
  30. 14.14
  31. 0.77
  32. 2
  33. 0.098
  34. 0.63
  35. 4.21
  36. 12.53
  37. 14.83
  38. 6.71
  39. 17.11
  40. 0.032

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