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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 518 · 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 9 in 28.169? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  2. 2.Which is the smallest: 0.031, 0.43, 0.4, 0.397? (a) 0.031 (b) 0.43 (c) 0.4 (d) 0.397
  3. 3.8.53 + 5.3 = ? (a) 9.06 (b) 13.73 (c) 13.93 (d) 13.83
  4. 4.7.42 + 4.7 = ? (a) 12.22 (b) 7.89 (c) 12.02 (d) 12.12
  5. 5.What is the value of the digit 4 in 26.347? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  6. 6.Which is the greatest: 0.86, 0.077, 0.786, 0.8? (a) 0.86 (b) 0.077 (c) 0.786 (d) 0.8
  7. 7.What is the value of the digit 2 in 42.895? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  8. 8.Which is the greatest: 0.2, 0.176, 0.034, 0.21? (a) 0.2 (b) 0.176 (c) 0.034 (d) 0.21
  9. 9.1.84 + 8.3 = ? (a) 2.67 (b) 10.24 (c) 10.14 (d) 10.04
  10. 10.Which is the greatest: 0.027, 0.71, 0.7, 0.656? (a) 0.027 (b) 0.71 (c) 0.7 (d) 0.656
  11. 11.1.16 + 9.1 = ? (a) 10.36 (b) 2.07 (c) 10.16 (d) 10.26
  12. 12.What is the value of the digit 9 in 39.278? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  13. 13.8.63 + 1.2 = ? (a) 9.83 (b) 9.93 (c) 8.75 (d) 9.73
  14. 14.4.84 + 2.1 = ? (a) 6.94 (b) 7.04 (c) 5.05 (d) 6.84
  15. 15.What is the value of the digit 4 in 32.478? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  16. 16.What is the value of the digit 4 in 38.469? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  17. 17.What is the value of the digit 7 in 75.631? (a) 7 (b) 0.07 (c) 0.7 (d) 70
  18. 18.Which is the smallest: 0.34, 0.226, 0.3, 0.061? (a) 0.34 (b) 0.226 (c) 0.3 (d) 0.061
  19. 19.Which is the smallest: 0.087, 0.52, 0.492, 0.5? (a) 0.087 (b) 0.52 (c) 0.492 (d) 0.5
  20. 20.Which is the greatest: 0.016, 0.724, 0.8, 0.83? (a) 0.016 (b) 0.724 (c) 0.8 (d) 0.83
  21. 21.Which is the smallest: 0.016, 0.3, 0.39, 0.222? (a) 0.016 (b) 0.3 (c) 0.39 (d) 0.222
  22. 22.8.34 + 5.7 = ? (a) 8.91 (b) 13.94 (c) 14.14 (d) 14.04
  23. 23.What is the value of the digit 7 in 78.349? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  24. 24.Which is the smallest: 0.494, 0.59, 0.5, 0.081? (a) 0.494 (b) 0.59 (c) 0.5 (d) 0.081
  25. 25.Which is the greatest: 0.7, 0.665, 0.096, 0.74? (a) 0.7 (b) 0.665 (c) 0.096 (d) 0.74
  26. 26.3.23 + 9.2 = ? (a) 4.15 (b) 12.53 (c) 12.33 (d) 12.43
  27. 27.Which is the smallest: 0.642, 0.76, 0.7, 0.013? (a) 0.642 (b) 0.76 (c) 0.7 (d) 0.013
  28. 28.What is the value of the digit 4 in 78.462? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  29. 29.5.35 + 3.6 = ? (a) 8.85 (b) 5.71 (c) 8.95 (d) 9.05
  30. 30.Which is the greatest: 0.222, 0.3, 0.056, 0.38? (a) 0.222 (b) 0.3 (c) 0.056 (d) 0.38
  31. 31.2.35 + 6.2 = ? (a) 8.55 (b) 8.65 (c) 2.97 (d) 8.45
  32. 32.What is the value of the digit 4 in 43.869? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  33. 33.9.33 + 8.1 = ? (a) 17.33 (b) 17.53 (c) 10.14 (d) 17.43
  34. 34.What is the value of the digit 7 in 82.975? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  35. 35.Which is the smallest: 0.089, 0.677, 0.7, 0.78? (a) 0.089 (b) 0.677 (c) 0.7 (d) 0.78
  36. 36.What is the value of the digit 4 in 14.358? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  37. 37.What is the value of the digit 3 in 13.586? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  38. 38.6.42 + 7.3 = ? (a) 13.82 (b) 7.15 (c) 13.62 (d) 13.72
  39. 39.4.06 + 6.6 = ? (a) 4.72 (b) 10.66 (c) 10.76 (d) 10.56
  40. 40.What is the value of the digit 4 in 43.627? (a) 4 (b) 0.4 (c) 0.04 (d) 40

Answer key

  1. 0.009
  2. 0.031
  3. 13.83
  4. 12.12
  5. 0.04
  6. 0.86
  7. 2
  8. 0.21
  9. 10.14
  10. 0.71
  11. 10.26
  12. 9
  13. 9.83
  14. 6.94
  15. 0.4
  16. 0.4
  17. 70
  18. 0.061
  19. 0.087
  20. 0.83
  21. 0.016
  22. 14.04
  23. 70
  24. 0.081
  25. 0.74
  26. 12.43
  27. 0.013
  28. 0.4
  29. 8.95
  30. 0.38
  31. 8.55
  32. 40
  33. 17.43
  34. 0.07
  35. 0.089
  36. 4
  37. 3
  38. 13.72
  39. 10.66
  40. 40

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