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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 58 · 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 71.429? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  2. 2.3.11 + 1.2 = ? (a) 3.23 (b) 4.31 (c) 4.21 (d) 4.41
  3. 3.Which is the greatest: 0.614, 0.71, 0.7, 0.028? (a) 0.614 (b) 0.71 (c) 0.7 (d) 0.028
  4. 4.7.51 + 8.2 = ? (a) 15.81 (b) 15.61 (c) 15.71 (d) 8.33
  5. 5.4.03 + 1.5 = ? (a) 5.63 (b) 5.43 (c) 4.18 (d) 5.53
  6. 6.Which is the greatest: 0.48, 0.381, 0.4, 0.079? (a) 0.48 (b) 0.381 (c) 0.4 (d) 0.079
  7. 7.6.71 + 7.1 = ? (a) 13.71 (b) 13.91 (c) 7.42 (d) 13.81
  8. 8.2.09 + 9.3 = ? (a) 11.49 (b) 11.29 (c) 3.02 (d) 11.39
  9. 9.Which is the smallest: 0.028, 0.67, 0.571, 0.6? (a) 0.028 (b) 0.67 (c) 0.571 (d) 0.6
  10. 10.8.61 + 7.7 = ? (a) 9.38 (b) 16.21 (c) 16.31 (d) 16.41
  11. 11.4.01 + 1.7 = ? (a) 4.18 (b) 5.81 (c) 5.61 (d) 5.71
  12. 12.Which is the smallest: 0.376, 0.49, 0.4, 0.014? (a) 0.376 (b) 0.49 (c) 0.4 (d) 0.014
  13. 13.Which is the smallest: 0.084, 0.66, 0.6, 0.541? (a) 0.084 (b) 0.66 (c) 0.6 (d) 0.541
  14. 14.6.22 + 2.3 = ? (a) 8.52 (b) 6.45 (c) 8.42 (d) 8.62
  15. 15.What is the value of the digit 2 in 82.364? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  16. 16.What is the value of the digit 9 in 94.521? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  17. 17.What is the value of the digit 2 in 19.642? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  18. 18.What is the value of the digit 3 in 43.587? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  19. 19.What is the value of the digit 9 in 43.291? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  20. 20.Which is the smallest: 0.383, 0.4, 0.49, 0.064? (a) 0.383 (b) 0.4 (c) 0.49 (d) 0.064
  21. 21.What is the value of the digit 3 in 32.796? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  22. 22.Which is the greatest: 0.019, 0.4, 0.48, 0.388? (a) 0.019 (b) 0.4 (c) 0.48 (d) 0.388
  23. 23.7.31 + 7.2 = ? (a) 14.41 (b) 14.51 (c) 14.61 (d) 8.03
  24. 24.Which is the greatest: 0.4, 0.011, 0.338, 0.49? (a) 0.4 (b) 0.011 (c) 0.338 (d) 0.49
  25. 25.4.74 + 1.7 = ? (a) 4.91 (b) 6.54 (c) 6.44 (d) 6.34
  26. 26.What is the value of the digit 6 in 96.815? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  27. 27.9.56 + 3.8 = ? (a) 13.46 (b) 9.94 (c) 13.36 (d) 13.26
  28. 28.What is the value of the digit 6 in 48.526? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  29. 29.Which is the greatest: 0.8, 0.743, 0.82, 0.016? (a) 0.8 (b) 0.743 (c) 0.82 (d) 0.016
  30. 30.What is the value of the digit 1 in 15.328? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  31. 31.What is the value of the digit 5 in 45.236? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  32. 32.7.62 + 2.9 = ? (a) 10.52 (b) 7.91 (c) 10.42 (d) 10.62
  33. 33.What is the value of the digit 8 in 14.268? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  34. 34.Which is the smallest: 0.081, 0.82, 0.727, 0.8? (a) 0.081 (b) 0.82 (c) 0.727 (d) 0.8
  35. 35.What is the value of the digit 6 in 62.589? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  36. 36.Which is the smallest: 0.23, 0.112, 0.053, 0.2? (a) 0.23 (b) 0.112 (c) 0.053 (d) 0.2
  37. 37.4.24 + 9.3 = ? (a) 13.44 (b) 13.64 (c) 13.54 (d) 5.17
  38. 38.What is the value of the digit 5 in 48.652? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  39. 39.Which is the greatest: 0.525, 0.057, 0.6, 0.69? (a) 0.525 (b) 0.057 (c) 0.6 (d) 0.69
  40. 40.Which is the greatest: 0.081, 0.777, 0.8, 0.86? (a) 0.081 (b) 0.777 (c) 0.8 (d) 0.86

Answer key

  1. 0.02
  2. 4.31
  3. 0.71
  4. 15.71
  5. 5.53
  6. 0.48
  7. 13.81
  8. 11.39
  9. 0.028
  10. 16.31
  11. 5.71
  12. 0.014
  13. 0.084
  14. 8.52
  15. 2
  16. 90
  17. 0.002
  18. 3
  19. 0.09
  20. 0.064
  21. 30
  22. 0.48
  23. 14.51
  24. 0.49
  25. 6.44
  26. 6
  27. 13.36
  28. 0.006
  29. 0.82
  30. 10
  31. 5
  32. 10.52
  33. 0.008
  34. 0.081
  35. 60
  36. 0.053
  37. 13.54
  38. 0.05
  39. 0.69
  40. 0.86

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