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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 554 · 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 7 in 76.894? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  2. 2.Which is the greatest: 0.019, 0.88, 0.8, 0.712? (a) 0.019 (b) 0.88 (c) 0.8 (d) 0.712
  3. 3.4.01 + 1.8 = ? (a) 5.91 (b) 4.19 (c) 5.81 (d) 5.71
  4. 4.9.35 + 2.2 = ? (a) 11.45 (b) 11.55 (c) 9.57 (d) 11.65
  5. 5.3.38 + 1.8 = ? (a) 5.18 (b) 5.28 (c) 5.08 (d) 3.56
  6. 6.1.42 + 6.7 = ? (a) 2.09 (b) 8.22 (c) 8.12 (d) 8.02
  7. 7.1.51 + 1.7 = ? (a) 3.21 (b) 1.68 (c) 3.11 (d) 3.31
  8. 8.5.69 + 4.7 = ? (a) 10.29 (b) 6.16 (c) 10.39 (d) 10.49
  9. 9.7.78 + 1.5 = ? (a) 7.93 (b) 9.28 (c) 9.38 (d) 9.18
  10. 10.What is the value of the digit 2 in 92.716? (a) 20 (b) 0.02 (c) 2 (d) 0.2
  11. 11.6.91 + 1.3 = ? (a) 8.31 (b) 8.11 (c) 8.21 (d) 7.04
  12. 12.8.71 + 5.1 = ? (a) 13.81 (b) 13.91 (c) 9.22 (d) 13.71
  13. 13.Which is the smallest: 0.36, 0.211, 0.3, 0.031? (a) 0.36 (b) 0.211 (c) 0.3 (d) 0.031
  14. 14.What is the value of the digit 4 in 82.349? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  15. 15.1.14 + 2.7 = ? (a) 3.74 (b) 3.84 (c) 3.94 (d) 1.41
  16. 16.6.71 + 1.6 = ? (a) 8.31 (b) 8.41 (c) 6.87 (d) 8.21
  17. 17.Which is the greatest: 0.054, 0.48, 0.4, 0.333? (a) 0.054 (b) 0.48 (c) 0.4 (d) 0.333
  18. 18.What is the value of the digit 1 in 87.314? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  19. 19.4.11 + 4.1 = ? (a) 8.21 (b) 8.11 (c) 8.31 (d) 4.52
  20. 20.7.75 + 7.1 = ? (a) 14.75 (b) 8.46 (c) 14.85 (d) 14.95
  21. 21.3.56 + 6.9 = ? (a) 10.36 (b) 4.25 (c) 10.46 (d) 10.56
  22. 22.Which is the greatest: 0.329, 0.45, 0.4, 0.069? (a) 0.329 (b) 0.45 (c) 0.4 (d) 0.069
  23. 23.What is the value of the digit 7 in 37.452? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  24. 24.9.47 + 5.5 = ? (a) 14.87 (b) 15.07 (c) 10.02 (d) 14.97
  25. 25.1.97 + 7.5 = ? (a) 9.57 (b) 9.37 (c) 2.72 (d) 9.47
  26. 26.9.14 + 5.1 = ? (a) 9.65 (b) 14.14 (c) 14.24 (d) 14.34
  27. 27.What is the value of the digit 9 in 98.561? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  28. 28.4.24 + 3.4 = ? (a) 7.64 (b) 4.58 (c) 7.74 (d) 7.54
  29. 29.3.78 + 1.3 = ? (a) 4.98 (b) 5.08 (c) 5.18 (d) 3.91
  30. 30.What is the value of the digit 2 in 56.924? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  31. 31.4.68 + 6.3 = ? (a) 5.31 (b) 10.88 (c) 11.08 (d) 10.98
  32. 32.What is the value of the digit 3 in 75.213? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  33. 33.7.57 + 9.1 = ? (a) 8.48 (b) 16.57 (c) 16.67 (d) 16.77
  34. 34.7.91 + 2.7 = ? (a) 8.18 (b) 10.61 (c) 10.71 (d) 10.51
  35. 35.6.05 + 7.7 = ? (a) 6.82 (b) 13.85 (c) 13.65 (d) 13.75
  36. 36.Which is the smallest: 0.4, 0.023, 0.47, 0.342? (a) 0.4 (b) 0.023 (c) 0.47 (d) 0.342
  37. 37.5.29 + 4.7 = ? (a) 9.89 (b) 9.99 (c) 10.09 (d) 5.76
  38. 38.6.11 + 5.1 = ? (a) 11.31 (b) 6.62 (c) 11.11 (d) 11.21
  39. 39.Which is the smallest: 0.251, 0.32, 0.3, 0.081? (a) 0.251 (b) 0.32 (c) 0.3 (d) 0.081
  40. 40.Which is the greatest: 0.5, 0.086, 0.498, 0.51? (a) 0.5 (b) 0.086 (c) 0.498 (d) 0.51

Answer key

  1. 70
  2. 0.88
  3. 5.81
  4. 11.55
  5. 5.18
  6. 8.12
  7. 3.21
  8. 10.39
  9. 9.28
  10. 2
  11. 8.21
  12. 13.81
  13. 0.031
  14. 0.04
  15. 3.84
  16. 8.31
  17. 0.48
  18. 0.01
  19. 8.21
  20. 14.85
  21. 10.46
  22. 0.45
  23. 7
  24. 14.97
  25. 9.47
  26. 14.24
  27. 90
  28. 7.64
  29. 5.08
  30. 0.02
  31. 10.98
  32. 0.003
  33. 16.67
  34. 10.61
  35. 13.75
  36. 0.023
  37. 9.99
  38. 11.21
  39. 0.081
  40. 0.51

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