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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 583 · 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 3 in 13.425? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  2. 2.4.14 + 8.9 = ? (a) 13.04 (b) 5.03 (c) 12.94 (d) 13.14
  3. 3.1.31 + 5.9 = ? (a) 7.31 (b) 7.11 (c) 1.9 (d) 7.21
  4. 4.What is the value of the digit 6 in 68.527? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  5. 5.What is the value of the digit 4 in 61.489? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  6. 6.What is the value of the digit 7 in 36.728? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  7. 7.8.45 + 4.7 = ? (a) 8.92 (b) 13.15 (c) 13.25 (d) 13.05
  8. 8.Which is the smallest: 0.46, 0.083, 0.328, 0.4? (a) 0.46 (b) 0.083 (c) 0.328 (d) 0.4
  9. 9.8.16 + 3.3 = ? (a) 8.49 (b) 11.56 (c) 11.36 (d) 11.46
  10. 10.6.91 + 9.6 = ? (a) 7.87 (b) 16.41 (c) 16.51 (d) 16.61
  11. 11.Which is the greatest: 0.086, 0.31, 0.249, 0.3? (a) 0.086 (b) 0.31 (c) 0.249 (d) 0.3
  12. 12.9.64 + 1.8 = ? (a) 11.34 (b) 11.44 (c) 9.82 (d) 11.54
  13. 13.6.67 + 6.5 = ? (a) 7.32 (b) 13.17 (c) 13.27 (d) 13.07
  14. 14.5.91 + 9.3 = ? (a) 6.84 (b) 15.31 (c) 15.11 (d) 15.21
  15. 15.What is the value of the digit 1 in 16.852? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  16. 16.What is the value of the digit 6 in 74.365? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  17. 17.What is the value of the digit 5 in 91.825? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  18. 18.5.16 + 8.9 = ? (a) 14.16 (b) 14.06 (c) 13.96 (d) 6.05
  19. 19.3.11 + 8.2 = ? (a) 3.93 (b) 11.41 (c) 11.31 (d) 11.21
  20. 20.What is the value of the digit 8 in 82.645? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  21. 21.5.79 + 1.7 = ? (a) 5.96 (b) 7.39 (c) 7.49 (d) 7.59
  22. 22.What is the value of the digit 1 in 92.158? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  23. 23.8.31 + 3.1 = ? (a) 11.51 (b) 11.41 (c) 8.62 (d) 11.31
  24. 24.What is the value of the digit 9 in 69.752? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  25. 25.8.83 + 2.4 = ? (a) 11.13 (b) 11.33 (c) 11.23 (d) 9.07
  26. 26.7.07 + 9.8 = ? (a) 8.05 (b) 16.97 (c) 16.87 (d) 16.77
  27. 27.Which is the smallest: 0.29, 0.082, 0.2, 0.118? (a) 0.29 (b) 0.082 (c) 0.2 (d) 0.118
  28. 28.Which is the greatest: 0.245, 0.3, 0.31, 0.017? (a) 0.245 (b) 0.3 (c) 0.31 (d) 0.017
  29. 29.What is the value of the digit 8 in 61.895? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  30. 30.Which is the greatest: 0.483, 0.015, 0.5, 0.58? (a) 0.483 (b) 0.015 (c) 0.5 (d) 0.58
  31. 31.What is the value of the digit 1 in 73.124? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  32. 32.Which is the smallest: 0.652, 0.7, 0.032, 0.73? (a) 0.652 (b) 0.7 (c) 0.032 (d) 0.73
  33. 33.8.01 + 7.8 = ? (a) 15.71 (b) 15.81 (c) 15.91 (d) 8.79
  34. 34.Which is the greatest: 0.427, 0.5, 0.52, 0.016? (a) 0.427 (b) 0.5 (c) 0.52 (d) 0.016
  35. 35.What is the value of the digit 3 in 35.678? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  36. 36.What is the value of the digit 4 in 17.429? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  37. 37.8.27 + 8.6 = ? (a) 16.97 (b) 16.87 (c) 16.77 (d) 9.13
  38. 38.6.01 + 6.9 = ? (a) 13.01 (b) 6.7 (c) 12.91 (d) 12.81
  39. 39.Which is the smallest: 0.617, 0.061, 0.73, 0.7? (a) 0.617 (b) 0.061 (c) 0.73 (d) 0.7
  40. 40.What is the value of the digit 1 in 37.214? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01

Answer key

  1. 3
  2. 13.04
  3. 7.21
  4. 60
  5. 0.4
  6. 0.7
  7. 13.15
  8. 0.083
  9. 11.46
  10. 16.51
  11. 0.31
  12. 11.44
  13. 13.17
  14. 15.21
  15. 10
  16. 0.06
  17. 0.005
  18. 14.06
  19. 11.31
  20. 80
  21. 7.49
  22. 0.1
  23. 11.41
  24. 9
  25. 11.23
  26. 16.87
  27. 0.082
  28. 0.31
  29. 0.8
  30. 0.58
  31. 0.1
  32. 0.032
  33. 15.81
  34. 0.52
  35. 30
  36. 0.4
  37. 16.87
  38. 12.91
  39. 0.061
  40. 0.01

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