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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 213 · 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: 0.2, 0.25, 0.031, 0.132? (a) 0.2 (b) 0.25 (c) 0.031 (d) 0.132
  2. 2.Which is the smallest: 0.6, 0.67, 0.571, 0.045? (a) 0.6 (b) 0.67 (c) 0.571 (d) 0.045
  3. 3.Which is the smallest: 0.2, 0.086, 0.25, 0.126? (a) 0.2 (b) 0.086 (c) 0.25 (d) 0.126
  4. 4.What is the value of the digit 6 in 71.826? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  5. 5.What is the value of the digit 1 in 92.831? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  6. 6.7.79 + 1.2 = ? (a) 7.91 (b) 8.89 (c) 9.09 (d) 8.99
  7. 7.Which is the greatest: 0.086, 0.617, 0.7, 0.73? (a) 0.086 (b) 0.617 (c) 0.7 (d) 0.73
  8. 8.3.21 + 4.1 = ? (a) 3.62 (b) 7.31 (c) 7.41 (d) 7.21
  9. 9.What is the value of the digit 2 in 26.518? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  10. 10.4.03 + 7.1 = ? (a) 11.23 (b) 11.13 (c) 11.03 (d) 4.74
  11. 11.Which is the greatest: 0.423, 0.061, 0.5, 0.59? (a) 0.423 (b) 0.061 (c) 0.5 (d) 0.59
  12. 12.2.95 + 2.4 = ? (a) 5.25 (b) 3.19 (c) 5.35 (d) 5.45
  13. 13.6.33 + 3.3 = ? (a) 9.63 (b) 9.53 (c) 6.66 (d) 9.73
  14. 14.5.27 + 2.7 = ? (a) 7.87 (b) 7.97 (c) 5.54 (d) 8.07
  15. 15.8.56 + 5.1 = ? (a) 9.07 (b) 13.56 (c) 13.66 (d) 13.76
  16. 16.What is the value of the digit 5 in 32.518? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  17. 17.What is the value of the digit 5 in 14.593? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  18. 18.What is the value of the digit 6 in 79.658? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  19. 19.What is the value of the digit 2 in 38.492? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  20. 20.What is the value of the digit 5 in 63.572? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  21. 21.Which is the greatest: 0.2, 0.181, 0.073, 0.22? (a) 0.2 (b) 0.181 (c) 0.073 (d) 0.22
  22. 22.4.52 + 3.1 = ? (a) 4.83 (b) 7.72 (c) 7.52 (d) 7.62
  23. 23.9.76 + 5.4 = ? (a) 10.3 (b) 15.16 (c) 15.26 (d) 15.06
  24. 24.4.49 + 3.6 = ? (a) 7.99 (b) 8.09 (c) 8.19 (d) 4.85
  25. 25.8.65 + 6.9 = ? (a) 9.34 (b) 15.55 (c) 15.65 (d) 15.45
  26. 26.Which is the smallest: 0.82, 0.097, 0.748, 0.8? (a) 0.82 (b) 0.097 (c) 0.748 (d) 0.8
  27. 27.What is the value of the digit 7 in 79.523? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  28. 28.What is the value of the digit 1 in 41.689? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  29. 29.Which is the greatest: 0.8, 0.85, 0.065, 0.755? (a) 0.8 (b) 0.85 (c) 0.065 (d) 0.755
  30. 30.What is the value of the digit 1 in 82.419? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  31. 31.Which is the smallest: 0.658, 0.066, 0.7, 0.78? (a) 0.658 (b) 0.066 (c) 0.7 (d) 0.78
  32. 32.8.12 + 8.4 = ? (a) 8.96 (b) 16.52 (c) 16.42 (d) 16.62
  33. 33.What is the value of the digit 2 in 21.573? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  34. 34.Which is the greatest: 0.3, 0.271, 0.38, 0.065? (a) 0.3 (b) 0.271 (c) 0.38 (d) 0.065
  35. 35.What is the value of the digit 1 in 67.821? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  36. 36.5.63 + 1.5 = ? (a) 7.23 (b) 5.78 (c) 7.13 (d) 7.03
  37. 37.5.28 + 7.2 = ? (a) 12.38 (b) 12.48 (c) 6 (d) 12.58
  38. 38.Which is the greatest: 0.69, 0.022, 0.6, 0.533? (a) 0.69 (b) 0.022 (c) 0.6 (d) 0.533
  39. 39.What is the value of the digit 8 in 64.928? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  40. 40.8.12 + 9.6 = ? (a) 17.62 (b) 9.08 (c) 17.82 (d) 17.72

Answer key

  1. 0.031
  2. 0.045
  3. 0.086
  4. 0.006
  5. 0.001
  6. 8.99
  7. 0.73
  8. 7.31
  9. 20
  10. 11.13
  11. 0.59
  12. 5.35
  13. 9.63
  14. 7.97
  15. 13.66
  16. 0.5
  17. 0.5
  18. 0.6
  19. 0.002
  20. 0.5
  21. 0.22
  22. 7.62
  23. 15.16
  24. 8.09
  25. 15.55
  26. 0.097
  27. 70
  28. 1
  29. 0.85
  30. 0.01
  31. 0.066
  32. 16.52
  33. 20
  34. 0.38
  35. 0.001
  36. 7.13
  37. 12.48
  38. 0.69
  39. 0.008
  40. 17.72

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