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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 777 · 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 greatest: 0.2, 0.26, 0.058, 0.144? (a) 0.2 (b) 0.26 (c) 0.058 (d) 0.144
  2. 2.What is the value of the digit 7 in 49.762? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  3. 3.Which is the smallest: 0.34, 0.3, 0.269, 0.028? (a) 0.34 (b) 0.3 (c) 0.269 (d) 0.028
  4. 4.Which is the greatest: 0.46, 0.032, 0.4, 0.331? (a) 0.46 (b) 0.032 (c) 0.4 (d) 0.331
  5. 5.What is the value of the digit 3 in 34.758? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  6. 6.Which is the greatest: 0.297, 0.3, 0.39, 0.083? (a) 0.297 (b) 0.3 (c) 0.39 (d) 0.083
  7. 7.Which is the smallest: 0.072, 0.48, 0.369, 0.4? (a) 0.072 (b) 0.48 (c) 0.369 (d) 0.4
  8. 8.3.59 + 8.7 = ? (a) 12.29 (b) 12.39 (c) 12.19 (d) 4.46
  9. 9.Which is the smallest: 0.83, 0.778, 0.8, 0.043? (a) 0.83 (b) 0.778 (c) 0.8 (d) 0.043
  10. 10.Which is the smallest: 0.84, 0.8, 0.019, 0.763? (a) 0.84 (b) 0.8 (c) 0.019 (d) 0.763
  11. 11.Which is the greatest: 0.432, 0.53, 0.5, 0.049? (a) 0.432 (b) 0.53 (c) 0.5 (d) 0.049
  12. 12.Which is the smallest: 0.019, 0.86, 0.756, 0.8? (a) 0.019 (b) 0.86 (c) 0.756 (d) 0.8
  13. 13.1.51 + 5.3 = ? (a) 6.71 (b) 2.04 (c) 6.81 (d) 6.91
  14. 14.What is the value of the digit 9 in 13.794? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  15. 15.Which is the greatest: 0.059, 0.362, 0.4, 0.47? (a) 0.059 (b) 0.362 (c) 0.4 (d) 0.47
  16. 16.What is the value of the digit 1 in 96.514? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  17. 17.4.72 + 4.7 = ? (a) 9.42 (b) 9.32 (c) 9.52 (d) 5.19
  18. 18.Which is the greatest: 0.4, 0.018, 0.49, 0.338? (a) 0.4 (b) 0.018 (c) 0.49 (d) 0.338
  19. 19.What is the value of the digit 1 in 19.473? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  20. 20.Which is the smallest: 0.076, 0.4, 0.338, 0.41? (a) 0.076 (b) 0.4 (c) 0.338 (d) 0.41
  21. 21.What is the value of the digit 3 in 32.571? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  22. 22.Which is the greatest: 0.46, 0.076, 0.311, 0.4? (a) 0.46 (b) 0.076 (c) 0.311 (d) 0.4
  23. 23.What is the value of the digit 4 in 45.281? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  24. 24.What is the value of the digit 7 in 23.167? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  25. 25.3.72 + 9.5 = ? (a) 4.67 (b) 13.22 (c) 13.32 (d) 13.12
  26. 26.2.11 + 9.5 = ? (a) 3.06 (b) 11.51 (c) 11.71 (d) 11.61
  27. 27.What is the value of the digit 2 in 38.162? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  28. 28.What is the value of the digit 6 in 49.786? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  29. 29.Which is the greatest: 0.8, 0.83, 0.098, 0.755? (a) 0.8 (b) 0.83 (c) 0.098 (d) 0.755
  30. 30.9.35 + 5.8 = ? (a) 15.05 (b) 15.25 (c) 15.15 (d) 9.93
  31. 31.What is the value of the digit 4 in 34.987? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  32. 32.2.12 + 8.9 = ? (a) 3.01 (b) 10.92 (c) 11.12 (d) 11.02
  33. 33.Which is the smallest: 0.093, 0.31, 0.244, 0.3? (a) 0.093 (b) 0.31 (c) 0.244 (d) 0.3
  34. 34.Which is the greatest: 0.8, 0.038, 0.85, 0.734? (a) 0.8 (b) 0.038 (c) 0.85 (d) 0.734
  35. 35.What is the value of the digit 7 in 53.749? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  36. 36.Which is the greatest: 0.2, 0.173, 0.018, 0.25? (a) 0.2 (b) 0.173 (c) 0.018 (d) 0.25
  37. 37.4.79 + 9.1 = ? (a) 13.99 (b) 5.7 (c) 13.89 (d) 13.79
  38. 38.4.65 + 9.4 = ? (a) 5.59 (b) 14.05 (c) 14.15 (d) 13.95
  39. 39.1.75 + 7.2 = ? (a) 8.95 (b) 8.85 (c) 9.05 (d) 2.47
  40. 40.1.72 + 2.4 = ? (a) 4.02 (b) 4.22 (c) 4.12 (d) 1.96

Answer key

  1. 0.26
  2. 0.7
  3. 0.028
  4. 0.46
  5. 30
  6. 0.39
  7. 0.072
  8. 12.29
  9. 0.043
  10. 0.019
  11. 0.53
  12. 0.019
  13. 6.81
  14. 0.09
  15. 0.47
  16. 0.01
  17. 9.42
  18. 0.49
  19. 10
  20. 0.076
  21. 30
  22. 0.46
  23. 40
  24. 0.007
  25. 13.22
  26. 11.61
  27. 0.002
  28. 0.006
  29. 0.83
  30. 15.15
  31. 4
  32. 11.02
  33. 0.093
  34. 0.85
  35. 0.7
  36. 0.25
  37. 13.89
  38. 14.05
  39. 8.95
  40. 4.12

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