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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 394 · 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 3 in 74.835? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  2. 2.What is the value of the digit 4 in 34.512? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  3. 3.What is the value of the digit 8 in 76.189? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  4. 4.What is the value of the digit 8 in 31.689? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  5. 5.Which is the greatest: 0.096, 0.88, 0.723, 0.8? (a) 0.096 (b) 0.88 (c) 0.723 (d) 0.8
  6. 6.What is the value of the digit 2 in 47.253? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  7. 7.2.67 + 9.3 = ? (a) 12.07 (b) 11.97 (c) 3.6 (d) 11.87
  8. 8.Which is the greatest: 0.68, 0.6, 0.534, 0.012? (a) 0.68 (b) 0.6 (c) 0.534 (d) 0.012
  9. 9.What is the value of the digit 8 in 98.654? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  10. 10.Which is the smallest: 0.399, 0.41, 0.044, 0.4? (a) 0.399 (b) 0.41 (c) 0.044 (d) 0.4
  11. 11.Which is the smallest: 0.5, 0.412, 0.53, 0.077? (a) 0.5 (b) 0.412 (c) 0.53 (d) 0.077
  12. 12.What is the value of the digit 9 in 42.679? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  13. 13.Which is the smallest: 0.022, 0.771, 0.82, 0.8? (a) 0.022 (b) 0.771 (c) 0.82 (d) 0.8
  14. 14.8.63 + 7.6 = ? (a) 16.13 (b) 16.23 (c) 16.33 (d) 9.39
  15. 15.What is the value of the digit 2 in 92.431? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  16. 16.What is the value of the digit 5 in 15.397? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  17. 17.What is the value of the digit 6 in 31.456? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  18. 18.Which is the greatest: 0.5, 0.079, 0.416, 0.55? (a) 0.5 (b) 0.079 (c) 0.416 (d) 0.55
  19. 19.Which is the greatest: 0.086, 0.184, 0.23, 0.2? (a) 0.086 (b) 0.184 (c) 0.23 (d) 0.2
  20. 20.Which is the smallest: 0.539, 0.67, 0.039, 0.6? (a) 0.539 (b) 0.67 (c) 0.039 (d) 0.6
  21. 21.Which is the smallest: 0.485, 0.5, 0.51, 0.093? (a) 0.485 (b) 0.5 (c) 0.51 (d) 0.093
  22. 22.Which is the smallest: 0.61, 0.6, 0.099, 0.573? (a) 0.61 (b) 0.6 (c) 0.099 (d) 0.573
  23. 23.Which is the greatest: 0.081, 0.738, 0.8, 0.88? (a) 0.081 (b) 0.738 (c) 0.8 (d) 0.88
  24. 24.Which is the smallest: 0.57, 0.425, 0.093, 0.5? (a) 0.57 (b) 0.425 (c) 0.093 (d) 0.5
  25. 25.What is the value of the digit 6 in 17.654? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  26. 26.Which is the greatest: 0.067, 0.87, 0.8, 0.743? (a) 0.067 (b) 0.87 (c) 0.8 (d) 0.743
  27. 27.Which is the greatest: 0.2, 0.26, 0.138, 0.047? (a) 0.2 (b) 0.26 (c) 0.138 (d) 0.047
  28. 28.5.96 + 6.4 = ? (a) 12.36 (b) 12.26 (c) 12.46 (d) 6.6
  29. 29.1.45 + 3.4 = ? (a) 4.75 (b) 4.85 (c) 1.79 (d) 4.95
  30. 30.8.94 + 2.6 = ? (a) 9.2 (b) 11.64 (c) 11.44 (d) 11.54
  31. 31.4.08 + 2.1 = ? (a) 6.28 (b) 4.29 (c) 6.18 (d) 6.08
  32. 32.Which is the smallest: 0.255, 0.31, 0.015, 0.3? (a) 0.255 (b) 0.31 (c) 0.015 (d) 0.3
  33. 33.1.31 + 1.9 = ? (a) 1.5 (b) 3.11 (c) 3.31 (d) 3.21
  34. 34.7.41 + 7.2 = ? (a) 14.71 (b) 8.13 (c) 14.51 (d) 14.61
  35. 35.3.81 + 5.4 = ? (a) 9.11 (b) 9.21 (c) 4.35 (d) 9.31
  36. 36.1.27 + 8.3 = ? (a) 9.57 (b) 9.67 (c) 9.47 (d) 2.1
  37. 37.What is the value of the digit 5 in 51.823? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  38. 38.Which is the greatest: 0.29, 0.2, 0.027, 0.129? (a) 0.29 (b) 0.2 (c) 0.027 (d) 0.129
  39. 39.3.05 + 4.8 = ? (a) 7.75 (b) 7.95 (c) 3.53 (d) 7.85
  40. 40.1.48 + 4.9 = ? (a) 1.97 (b) 6.28 (c) 6.38 (d) 6.48

Answer key

  1. 0.03
  2. 4
  3. 0.08
  4. 0.08
  5. 0.88
  6. 0.2
  7. 11.97
  8. 0.68
  9. 8
  10. 0.044
  11. 0.077
  12. 0.009
  13. 0.022
  14. 16.23
  15. 2
  16. 5
  17. 0.006
  18. 0.55
  19. 0.23
  20. 0.039
  21. 0.093
  22. 0.099
  23. 0.88
  24. 0.093
  25. 0.6
  26. 0.87
  27. 0.26
  28. 12.36
  29. 4.85
  30. 11.54
  31. 6.18
  32. 0.015
  33. 3.21
  34. 14.61
  35. 9.21
  36. 9.57
  37. 50
  38. 0.29
  39. 7.85
  40. 6.38

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