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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 498 · 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 1 in 14.329? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  2. 2.What is the value of the digit 9 in 73.691? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
  3. 3.What is the value of the digit 1 in 24.971? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  4. 4.What is the value of the digit 4 in 52.147? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  5. 5.Which is the greatest: 0.86, 0.756, 0.8, 0.038? (a) 0.86 (b) 0.756 (c) 0.8 (d) 0.038
  6. 6.Which is the smallest: 0.013, 0.261, 0.3, 0.36? (a) 0.013 (b) 0.261 (c) 0.3 (d) 0.36
  7. 7.4.19 + 3.1 = ? (a) 7.39 (b) 7.19 (c) 7.29 (d) 4.5
  8. 8.5.77 + 4.8 = ? (a) 10.67 (b) 6.25 (c) 10.57 (d) 10.47
  9. 9.Which is the smallest: 0.38, 0.3, 0.091, 0.279? (a) 0.38 (b) 0.3 (c) 0.091 (d) 0.279
  10. 10.9.87 + 3.5 = ? (a) 10.22 (b) 13.47 (c) 13.37 (d) 13.27
  11. 11.What is the value of the digit 1 in 26.491? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  12. 12.Which is the smallest: 0.48, 0.355, 0.091, 0.4? (a) 0.48 (b) 0.355 (c) 0.091 (d) 0.4
  13. 13.1.11 + 4.9 = ? (a) 5.91 (b) 1.6 (c) 6.11 (d) 6.01
  14. 14.What is the value of the digit 5 in 49.652? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  15. 15.What is the value of the digit 5 in 53.791? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  16. 16.What is the value of the digit 9 in 94.312? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  17. 17.What is the value of the digit 1 in 38.291? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  18. 18.What is the value of the digit 7 in 37.961? (a) 0.7 (b) 70 (c) 0.07 (d) 7
  19. 19.What is the value of the digit 3 in 37.859? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  20. 20.Which is the greatest: 0.199, 0.2, 0.24, 0.048? (a) 0.199 (b) 0.2 (c) 0.24 (d) 0.048
  21. 21.Which is the smallest: 0.038, 0.5, 0.411, 0.58? (a) 0.038 (b) 0.5 (c) 0.411 (d) 0.58
  22. 22.2.07 + 4.4 = ? (a) 6.37 (b) 6.47 (c) 2.51 (d) 6.57
  23. 23.Which is the greatest: 0.624, 0.087, 0.7, 0.74? (a) 0.624 (b) 0.087 (c) 0.7 (d) 0.74
  24. 24.Which is the smallest: 0.73, 0.695, 0.024, 0.7? (a) 0.73 (b) 0.695 (c) 0.024 (d) 0.7
  25. 25.What is the value of the digit 8 in 81.472? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  26. 26.2.47 + 8.1 = ? (a) 10.47 (b) 10.67 (c) 10.57 (d) 3.28
  27. 27.What is the value of the digit 9 in 43.289? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  28. 28.3.61 + 9.8 = ? (a) 13.51 (b) 13.31 (c) 13.41 (d) 4.59
  29. 29.What is the value of the digit 8 in 23.489? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  30. 30.3.82 + 9.4 = ? (a) 13.32 (b) 13.12 (c) 13.22 (d) 4.76
  31. 31.8.33 + 4.3 = ? (a) 8.76 (b) 12.63 (c) 12.73 (d) 12.53
  32. 32.Which is the greatest: 0.28, 0.181, 0.023, 0.2? (a) 0.28 (b) 0.181 (c) 0.023 (d) 0.2
  33. 33.7.89 + 5.2 = ? (a) 13.09 (b) 12.99 (c) 8.41 (d) 13.19
  34. 34.9.26 + 8.6 = ? (a) 17.76 (b) 17.86 (c) 10.12 (d) 17.96
  35. 35.6.98 + 6.1 = ? (a) 13.18 (b) 7.59 (c) 12.98 (d) 13.08
  36. 36.What is the value of the digit 2 in 61.429? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  37. 37.1.47 + 1.2 = ? (a) 2.77 (b) 2.67 (c) 2.57 (d) 1.59
  38. 38.3.08 + 5.7 = ? (a) 8.78 (b) 8.88 (c) 3.65 (d) 8.68
  39. 39.Which is the greatest: 0.099, 0.771, 0.8, 0.86? (a) 0.099 (b) 0.771 (c) 0.8 (d) 0.86
  40. 40.Which is the greatest: 0.646, 0.084, 0.7, 0.74? (a) 0.646 (b) 0.084 (c) 0.7 (d) 0.74

Answer key

  1. 10
  2. 0.09
  3. 0.001
  4. 0.04
  5. 0.86
  6. 0.013
  7. 7.29
  8. 10.57
  9. 0.091
  10. 13.37
  11. 0.001
  12. 0.091
  13. 6.01
  14. 0.05
  15. 50
  16. 90
  17. 0.001
  18. 7
  19. 30
  20. 0.24
  21. 0.038
  22. 6.47
  23. 0.74
  24. 0.024
  25. 80
  26. 10.57
  27. 0.009
  28. 13.41
  29. 0.08
  30. 13.22
  31. 12.63
  32. 0.28
  33. 13.09
  34. 17.86
  35. 13.08
  36. 0.02
  37. 2.67
  38. 8.78
  39. 0.86
  40. 0.74

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