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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 244 · 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 7 in 92.657? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  2. 2.Which is the greatest: 0.218, 0.3, 0.31, 0.053? (a) 0.218 (b) 0.3 (c) 0.31 (d) 0.053
  3. 3.What is the value of the digit 5 in 54.317? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  4. 4.Which is the smallest: 0.28, 0.174, 0.025, 0.2? (a) 0.28 (b) 0.174 (c) 0.025 (d) 0.2
  5. 5.7.94 + 3.2 = ? (a) 11.04 (b) 11.24 (c) 11.14 (d) 8.26
  6. 6.Which is the smallest: 0.21, 0.056, 0.173, 0.2? (a) 0.21 (b) 0.056 (c) 0.173 (d) 0.2
  7. 7.6.38 + 3.3 = ? (a) 6.71 (b) 9.68 (c) 9.78 (d) 9.58
  8. 8.What is the value of the digit 5 in 52.387? (a) 5 (b) 0.5 (c) 0.05 (d) 50
  9. 9.2.54 + 3.4 = ? (a) 6.04 (b) 2.88 (c) 5.94 (d) 5.84
  10. 10.8.12 + 7.9 = ? (a) 15.92 (b) 8.91 (c) 16.02 (d) 16.12
  11. 11.Which is the greatest: 0.4, 0.45, 0.345, 0.047? (a) 0.4 (b) 0.45 (c) 0.345 (d) 0.047
  12. 12.Which is the greatest: 0.3, 0.33, 0.028, 0.251? (a) 0.3 (b) 0.33 (c) 0.028 (d) 0.251
  13. 13.1.17 + 7.2 = ? (a) 1.89 (b) 8.47 (c) 8.37 (d) 8.27
  14. 14.What is the value of the digit 7 in 71.843? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  15. 15.What is the value of the digit 9 in 32.619? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  16. 16.Which is the greatest: 0.71, 0.7, 0.047, 0.687? (a) 0.71 (b) 0.7 (c) 0.047 (d) 0.687
  17. 17.What is the value of the digit 4 in 32.469? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  18. 18.Which is the greatest: 0.8, 0.021, 0.774, 0.83? (a) 0.8 (b) 0.021 (c) 0.774 (d) 0.83
  19. 19.What is the value of the digit 1 in 51.879? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  20. 20.Which is the smallest: 0.57, 0.018, 0.492, 0.5? (a) 0.57 (b) 0.018 (c) 0.492 (d) 0.5
  21. 21.7.71 + 8.7 = ? (a) 16.31 (b) 16.51 (c) 8.58 (d) 16.41
  22. 22.Which is the greatest: 0.288, 0.34, 0.029, 0.3? (a) 0.288 (b) 0.34 (c) 0.029 (d) 0.3
  23. 23.Which is the greatest: 0.23, 0.182, 0.083, 0.2? (a) 0.23 (b) 0.182 (c) 0.083 (d) 0.2
  24. 24.What is the value of the digit 5 in 95.784? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  25. 25.Which is the smallest: 0.21, 0.179, 0.2, 0.065? (a) 0.21 (b) 0.179 (c) 0.2 (d) 0.065
  26. 26.Which is the greatest: 0.087, 0.25, 0.2, 0.143? (a) 0.087 (b) 0.25 (c) 0.2 (d) 0.143
  27. 27.What is the value of the digit 5 in 52.614? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  28. 28.Which is the greatest: 0.6, 0.078, 0.68, 0.515? (a) 0.6 (b) 0.078 (c) 0.68 (d) 0.515
  29. 29.What is the value of the digit 1 in 65.241? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  30. 30.Which is the smallest: 0.7, 0.033, 0.658, 0.75? (a) 0.7 (b) 0.033 (c) 0.658 (d) 0.75
  31. 31.Which is the smallest: 0.25, 0.2, 0.128, 0.079? (a) 0.25 (b) 0.2 (c) 0.128 (d) 0.079
  32. 32.Which is the smallest: 0.089, 0.4, 0.43, 0.322? (a) 0.089 (b) 0.4 (c) 0.43 (d) 0.322
  33. 33.2.76 + 9.9 = ? (a) 12.66 (b) 12.76 (c) 3.75 (d) 12.56
  34. 34.What is the value of the digit 9 in 98.253? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  35. 35.Which is the greatest: 0.054, 0.2, 0.21, 0.142? (a) 0.054 (b) 0.2 (c) 0.21 (d) 0.142
  36. 36.4.11 + 7.1 = ? (a) 11.31 (b) 11.11 (c) 4.82 (d) 11.21
  37. 37.3.14 + 8.2 = ? (a) 11.44 (b) 11.34 (c) 3.96 (d) 11.24
  38. 38.What is the value of the digit 8 in 24.835? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  39. 39.What is the value of the digit 9 in 26.943? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  40. 40.What is the value of the digit 8 in 45.892? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8

Answer key

  1. 0.007
  2. 0.31
  3. 50
  4. 0.025
  5. 11.14
  6. 0.056
  7. 9.68
  8. 50
  9. 5.94
  10. 16.02
  11. 0.45
  12. 0.33
  13. 8.37
  14. 70
  15. 0.009
  16. 0.71
  17. 0.4
  18. 0.83
  19. 1
  20. 0.018
  21. 16.41
  22. 0.34
  23. 0.23
  24. 5
  25. 0.065
  26. 0.25
  27. 50
  28. 0.68
  29. 0.001
  30. 0.033
  31. 0.079
  32. 0.089
  33. 12.66
  34. 90
  35. 0.21
  36. 11.21
  37. 11.34
  38. 0.8
  39. 0.9
  40. 0.8

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