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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 674 · 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. 1.2.47 + 6.8 = ? (a) 9.27 (b) 9.37 (c) 9.17 (d) 3.15
  2. 2.What is the value of the digit 2 in 98.251? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  3. 3.9.62 + 6.1 = ? (a) 15.62 (b) 15.82 (c) 10.23 (d) 15.72
  4. 4.2.85 + 2.9 = ? (a) 5.75 (b) 5.65 (c) 3.14 (d) 5.85
  5. 5.Which is the greatest: 0.69, 0.016, 0.529, 0.6? (a) 0.69 (b) 0.016 (c) 0.529 (d) 0.6
  6. 6.8.48 + 6.3 = ? (a) 9.11 (b) 14.68 (c) 14.78 (d) 14.88
  7. 7.What is the value of the digit 8 in 42.896? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  8. 8.8.67 + 8.3 = ? (a) 16.87 (b) 17.07 (c) 9.5 (d) 16.97
  9. 9.4.52 + 6.2 = ? (a) 10.82 (b) 10.72 (c) 5.14 (d) 10.62
  10. 10.Which is the greatest: 0.176, 0.2, 0.058, 0.28? (a) 0.176 (b) 0.2 (c) 0.058 (d) 0.28
  11. 11.7.13 + 1.7 = ? (a) 7.3 (b) 8.93 (c) 8.73 (d) 8.83
  12. 12.4.64 + 1.7 = ? (a) 6.24 (b) 6.44 (c) 6.34 (d) 4.81
  13. 13.Which is the smallest: 0.4, 0.095, 0.46, 0.399? (a) 0.4 (b) 0.095 (c) 0.46 (d) 0.399
  14. 14.What is the value of the digit 3 in 23.974? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  15. 15.2.71 + 9.1 = ? (a) 11.91 (b) 3.62 (c) 11.71 (d) 11.81
  16. 16.6.69 + 2.3 = ? (a) 9.09 (b) 8.99 (c) 6.92 (d) 8.89
  17. 17.Which is the smallest: 0.068, 0.422, 0.54, 0.5? (a) 0.068 (b) 0.422 (c) 0.54 (d) 0.5
  18. 18.6.41 + 6.5 = ? (a) 7.06 (b) 12.91 (c) 12.81 (d) 13.01
  19. 19.4.65 + 1.4 = ? (a) 6.15 (b) 6.05 (c) 4.79 (d) 5.95
  20. 20.3.11 + 3.6 = ? (a) 6.71 (b) 6.81 (c) 6.61 (d) 3.47
  21. 21.6.62 + 3.8 = ? (a) 7 (b) 10.52 (c) 10.42 (d) 10.32
  22. 22.Which is the smallest: 0.36, 0.3, 0.096, 0.218? (a) 0.36 (b) 0.3 (c) 0.096 (d) 0.218
  23. 23.What is the value of the digit 6 in 26.517? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  24. 24.4.71 + 8.4 = ? (a) 13.21 (b) 13.11 (c) 5.55 (d) 13.01
  25. 25.Which is the smallest: 0.72, 0.7, 0.066, 0.635? (a) 0.72 (b) 0.7 (c) 0.066 (d) 0.635
  26. 26.4.41 + 3.4 = ? (a) 7.81 (b) 7.71 (c) 4.75 (d) 7.91
  27. 27.What is the value of the digit 5 in 64.325? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  28. 28.Which is the smallest: 0.75, 0.048, 0.638, 0.7? (a) 0.75 (b) 0.048 (c) 0.638 (d) 0.7
  29. 29.Which is the smallest: 0.094, 0.47, 0.387, 0.4? (a) 0.094 (b) 0.47 (c) 0.387 (d) 0.4
  30. 30.What is the value of the digit 4 in 13.946? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  31. 31.3.24 + 6.2 = ? (a) 9.54 (b) 9.44 (c) 9.34 (d) 3.86
  32. 32.What is the value of the digit 3 in 25.348? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  33. 33.What is the value of the digit 9 in 98.256? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  34. 34.Which is the greatest: 0.2, 0.29, 0.062, 0.189? (a) 0.2 (b) 0.29 (c) 0.062 (d) 0.189
  35. 35.1.01 + 8.8 = ? (a) 9.91 (b) 1.89 (c) 9.71 (d) 9.81
  36. 36.What is the value of the digit 9 in 95.614? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  37. 37.4.73 + 3.8 = ? (a) 8.53 (b) 8.63 (c) 8.43 (d) 5.11
  38. 38.What is the value of the digit 6 in 29.683? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  39. 39.What is the value of the digit 6 in 31.648? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  40. 40.1.24 + 9.7 = ? (a) 11.04 (b) 10.94 (c) 2.21 (d) 10.84

Answer key

  1. 9.27
  2. 0.2
  3. 15.72
  4. 5.75
  5. 0.69
  6. 14.78
  7. 0.8
  8. 16.97
  9. 10.72
  10. 0.28
  11. 8.83
  12. 6.34
  13. 0.095
  14. 3
  15. 11.81
  16. 8.99
  17. 0.068
  18. 12.91
  19. 6.05
  20. 6.71
  21. 10.42
  22. 0.096
  23. 6
  24. 13.11
  25. 0.066
  26. 7.81
  27. 0.005
  28. 0.048
  29. 0.094
  30. 0.04
  31. 9.44
  32. 0.3
  33. 90
  34. 0.29
  35. 9.81
  36. 90
  37. 8.53
  38. 0.6
  39. 0.6
  40. 10.94

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