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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 416 · 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: 0.34, 0.032, 0.3, 0.243? (a) 0.34 (b) 0.032 (c) 0.3 (d) 0.243
  2. 2.What is the value of the digit 1 in 81.925? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  3. 3.7.69 + 4.1 = ? (a) 8.1 (b) 11.89 (c) 11.79 (d) 11.69
  4. 4.What is the value of the digit 8 in 68.149? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  5. 5.What is the value of the digit 7 in 74.693? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  6. 6.What is the value of the digit 8 in 32.458? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  7. 7.Which is the greatest: 0.334, 0.42, 0.016, 0.4? (a) 0.334 (b) 0.42 (c) 0.016 (d) 0.4
  8. 8.7.17 + 8.8 = ? (a) 8.05 (b) 15.97 (c) 16.07 (d) 15.87
  9. 9.Which is the smallest: 0.055, 0.37, 0.298, 0.3? (a) 0.055 (b) 0.37 (c) 0.298 (d) 0.3
  10. 10.What is the value of the digit 7 in 93.174? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  11. 11.8.78 + 3.7 = ? (a) 12.58 (b) 12.48 (c) 9.15 (d) 12.38
  12. 12.2.35 + 9.3 = ? (a) 11.55 (b) 3.28 (c) 11.75 (d) 11.65
  13. 13.Which is the smallest: 0.4, 0.45, 0.076, 0.394? (a) 0.4 (b) 0.45 (c) 0.076 (d) 0.394
  14. 14.Which is the greatest: 0.83, 0.729, 0.8, 0.012? (a) 0.83 (b) 0.729 (c) 0.8 (d) 0.012
  15. 15.3.15 + 4.3 = ? (a) 3.58 (b) 7.45 (c) 7.55 (d) 7.35
  16. 16.3.94 + 9.4 = ? (a) 4.88 (b) 13.44 (c) 13.24 (d) 13.34
  17. 17.4.85 + 2.6 = ? (a) 7.35 (b) 7.45 (c) 7.55 (d) 5.11
  18. 18.Which is the greatest: 0.095, 0.5, 0.493, 0.52? (a) 0.095 (b) 0.5 (c) 0.493 (d) 0.52
  19. 19.Which is the greatest: 0.559, 0.61, 0.6, 0.099? (a) 0.559 (b) 0.61 (c) 0.6 (d) 0.099
  20. 20.8.09 + 2.6 = ? (a) 10.59 (b) 10.79 (c) 8.35 (d) 10.69
  21. 21.Which is the greatest: 0.083, 0.6, 0.69, 0.582? (a) 0.083 (b) 0.6 (c) 0.69 (d) 0.582
  22. 22.Which is the greatest: 0.022, 0.171, 0.21, 0.2? (a) 0.022 (b) 0.171 (c) 0.21 (d) 0.2
  23. 23.7.37 + 5.7 = ? (a) 13.07 (b) 13.17 (c) 12.97 (d) 7.94
  24. 24.2.78 + 3.1 = ? (a) 3.09 (b) 5.78 (c) 5.98 (d) 5.88
  25. 25.8.76 + 3.8 = ? (a) 12.66 (b) 9.14 (c) 12.46 (d) 12.56
  26. 26.What is the value of the digit 1 in 73.149? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  27. 27.6.88 + 2.5 = ? (a) 9.38 (b) 9.28 (c) 9.48 (d) 7.13
  28. 28.What is the value of the digit 1 in 29.318? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  29. 29.Which is the greatest: 0.081, 0.5, 0.429, 0.53? (a) 0.081 (b) 0.5 (c) 0.429 (d) 0.53
  30. 30.What is the value of the digit 7 in 27.631? (a) 70 (b) 7 (c) 0.07 (d) 0.7
  31. 31.Which is the smallest: 0.733, 0.072, 0.8, 0.82? (a) 0.733 (b) 0.072 (c) 0.8 (d) 0.82
  32. 32.What is the value of the digit 8 in 79.385? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  33. 33.Which is the smallest: 0.41, 0.381, 0.054, 0.4? (a) 0.41 (b) 0.381 (c) 0.054 (d) 0.4
  34. 34.What is the value of the digit 5 in 36.752? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  35. 35.Which is the smallest: 0.281, 0.013, 0.3, 0.31? (a) 0.281 (b) 0.013 (c) 0.3 (d) 0.31
  36. 36.What is the value of the digit 9 in 24.196? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  37. 37.What is the value of the digit 6 in 45.296? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  38. 38.2.23 + 4.1 = ? (a) 2.64 (b) 6.23 (c) 6.43 (d) 6.33
  39. 39.1.97 + 8.2 = ? (a) 10.27 (b) 2.79 (c) 10.17 (d) 10.07
  40. 40.What is the value of the digit 4 in 26.438? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4

Answer key

  1. 0.032
  2. 1
  3. 11.79
  4. 8
  5. 70
  6. 0.008
  7. 0.42
  8. 15.97
  9. 0.055
  10. 0.07
  11. 12.48
  12. 11.65
  13. 0.076
  14. 0.83
  15. 7.45
  16. 13.34
  17. 7.45
  18. 0.52
  19. 0.61
  20. 10.69
  21. 0.69
  22. 0.21
  23. 13.07
  24. 5.88
  25. 12.56
  26. 0.1
  27. 9.38
  28. 0.01
  29. 0.53
  30. 7
  31. 0.072
  32. 0.08
  33. 0.054
  34. 0.05
  35. 0.013
  36. 0.09
  37. 0.006
  38. 6.33
  39. 10.17
  40. 0.4

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