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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 116 · 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: 0.052, 0.64, 0.573, 0.6? (a) 0.052 (b) 0.64 (c) 0.573 (d) 0.6
  2. 2.4.26 + 2.1 = ? (a) 6.26 (b) 6.46 (c) 6.36 (d) 4.47
  3. 3.What is the value of the digit 1 in 86.127? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  4. 4.6.49 + 7.8 = ? (a) 14.39 (b) 14.29 (c) 7.27 (d) 14.19
  5. 5.What is the value of the digit 8 in 98.521? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  6. 6.3.91 + 7.5 = ? (a) 4.66 (b) 11.31 (c) 11.51 (d) 11.41
  7. 7.What is the value of the digit 2 in 74.263? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  8. 8.9.35 + 7.7 = ? (a) 17.05 (b) 16.95 (c) 17.15 (d) 10.12
  9. 9.4.12 + 2.2 = ? (a) 6.32 (b) 6.22 (c) 6.42 (d) 4.34
  10. 10.What is the value of the digit 2 in 25.814? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  11. 11.5.24 + 7.7 = ? (a) 13.04 (b) 6.01 (c) 12.84 (d) 12.94
  12. 12.Which is the greatest: 0.155, 0.22, 0.2, 0.089? (a) 0.155 (b) 0.22 (c) 0.2 (d) 0.089
  13. 13.1.31 + 2.5 = ? (a) 1.56 (b) 3.91 (c) 3.71 (d) 3.81
  14. 14.Which is the smallest: 0.4, 0.061, 0.47, 0.334? (a) 0.4 (b) 0.061 (c) 0.47 (d) 0.334
  15. 15.8.74 + 6.5 = ? (a) 15.14 (b) 15.24 (c) 15.34 (d) 9.39
  16. 16.3.51 + 3.9 = ? (a) 7.41 (b) 3.9 (c) 7.51 (d) 7.31
  17. 17.Which is the smallest: 0.3, 0.083, 0.34, 0.245? (a) 0.3 (b) 0.083 (c) 0.34 (d) 0.245
  18. 18.3.54 + 3.8 = ? (a) 7.44 (b) 7.24 (c) 7.34 (d) 3.92
  19. 19.Which is the smallest: 0.332, 0.033, 0.45, 0.4? (a) 0.332 (b) 0.033 (c) 0.45 (d) 0.4
  20. 20.6.31 + 4.1 = ? (a) 10.41 (b) 10.51 (c) 10.31 (d) 6.72
  21. 21.What is the value of the digit 2 in 52.746? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  22. 22.Which is the greatest: 0.3, 0.229, 0.054, 0.39? (a) 0.3 (b) 0.229 (c) 0.054 (d) 0.39
  23. 23.9.05 + 9.1 = ? (a) 18.15 (b) 18.25 (c) 18.05 (d) 9.96
  24. 24.3.88 + 3.1 = ? (a) 4.19 (b) 6.88 (c) 7.08 (d) 6.98
  25. 25.7.28 + 9.9 = ? (a) 8.27 (b) 17.08 (c) 17.18 (d) 17.28
  26. 26.Which is the greatest: 0.638, 0.075, 0.71, 0.7? (a) 0.638 (b) 0.075 (c) 0.71 (d) 0.7
  27. 27.What is the value of the digit 4 in 82.741? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  28. 28.9.19 + 5.9 = ? (a) 15.19 (b) 14.99 (c) 9.78 (d) 15.09
  29. 29.What is the value of the digit 1 in 29.153? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  30. 30.Which is the greatest: 0.657, 0.78, 0.049, 0.7? (a) 0.657 (b) 0.78 (c) 0.049 (d) 0.7
  31. 31.2.74 + 1.7 = ? (a) 2.91 (b) 4.54 (c) 4.34 (d) 4.44
  32. 32.7.67 + 6.9 = ? (a) 14.67 (b) 8.36 (c) 14.47 (d) 14.57
  33. 33.3.56 + 6.7 = ? (a) 10.36 (b) 10.16 (c) 10.26 (d) 4.23
  34. 34.8.97 + 7.5 = ? (a) 16.37 (b) 16.47 (c) 9.72 (d) 16.57
  35. 35.Which is the greatest: 0.5, 0.478, 0.096, 0.58? (a) 0.5 (b) 0.478 (c) 0.096 (d) 0.58
  36. 36.What is the value of the digit 2 in 15.628? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  37. 37.What is the value of the digit 3 in 51.632? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  38. 38.4.32 + 5.9 = ? (a) 4.91 (b) 10.32 (c) 10.22 (d) 10.12
  39. 39.What is the value of the digit 5 in 87.542? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  40. 40.Which is the greatest: 0.383, 0.49, 0.4, 0.056? (a) 0.383 (b) 0.49 (c) 0.4 (d) 0.056

Answer key

  1. 0.64
  2. 6.36
  3. 0.1
  4. 14.29
  5. 8
  6. 11.41
  7. 0.2
  8. 17.05
  9. 6.32
  10. 20
  11. 12.94
  12. 0.22
  13. 3.81
  14. 0.061
  15. 15.24
  16. 7.41
  17. 0.083
  18. 7.34
  19. 0.033
  20. 10.41
  21. 2
  22. 0.39
  23. 18.15
  24. 6.98
  25. 17.18
  26. 0.71
  27. 0.04
  28. 15.09
  29. 0.1
  30. 0.78
  31. 4.44
  32. 14.57
  33. 10.26
  34. 16.47
  35. 0.58
  36. 0.02
  37. 0.03
  38. 10.22
  39. 0.5
  40. 0.49

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