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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 585 · 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 38.561? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  2. 2.Which is the smallest: 0.567, 0.068, 0.67, 0.6? (a) 0.567 (b) 0.068 (c) 0.67 (d) 0.6
  3. 3.Which is the smallest: 0.772, 0.091, 0.8, 0.83? (a) 0.772 (b) 0.091 (c) 0.8 (d) 0.83
  4. 4.What is the value of the digit 7 in 32.765? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  5. 5.6.41 + 3.1 = ? (a) 6.72 (b) 9.61 (c) 9.41 (d) 9.51
  6. 6.6.34 + 4.5 = ? (a) 10.74 (b) 6.79 (c) 10.84 (d) 10.94
  7. 7.4.58 + 9.6 = ? (a) 14.28 (b) 14.08 (c) 5.54 (d) 14.18
  8. 8.What is the value of the digit 5 in 12.354? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  9. 9.Which is the smallest: 0.44, 0.347, 0.029, 0.4? (a) 0.44 (b) 0.347 (c) 0.029 (d) 0.4
  10. 10.4.24 + 1.5 = ? (a) 4.39 (b) 5.74 (c) 5.84 (d) 5.64
  11. 11.What is the value of the digit 4 in 92.436? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  12. 12.What is the value of the digit 1 in 89.152? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  13. 13.Which is the smallest: 0.045, 0.56, 0.5, 0.432? (a) 0.045 (b) 0.56 (c) 0.5 (d) 0.432
  14. 14.What is the value of the digit 2 in 37.925? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  15. 15.What is the value of the digit 4 in 78.924? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  16. 16.Which is the smallest: 0.764, 0.81, 0.071, 0.8? (a) 0.764 (b) 0.81 (c) 0.071 (d) 0.8
  17. 17.2.11 + 8.1 = ? (a) 2.92 (b) 10.21 (c) 10.31 (d) 10.11
  18. 18.What is the value of the digit 9 in 98.674? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  19. 19.Which is the smallest: 0.6, 0.63, 0.069, 0.593? (a) 0.6 (b) 0.63 (c) 0.069 (d) 0.593
  20. 20.Which is the greatest: 0.025, 0.2, 0.21, 0.126? (a) 0.025 (b) 0.2 (c) 0.21 (d) 0.126
  21. 21.What is the value of the digit 6 in 86.173? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  22. 22.Which is the smallest: 0.524, 0.6, 0.61, 0.077? (a) 0.524 (b) 0.6 (c) 0.61 (d) 0.077
  23. 23.What is the value of the digit 2 in 12.583? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  24. 24.What is the value of the digit 2 in 91.278? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  25. 25.7.86 + 7.5 = ? (a) 15.46 (b) 15.36 (c) 15.26 (d) 8.61
  26. 26.Which is the smallest: 0.515, 0.6, 0.061, 0.68? (a) 0.515 (b) 0.6 (c) 0.061 (d) 0.68
  27. 27.2.18 + 7.3 = ? (a) 9.48 (b) 9.38 (c) 2.91 (d) 9.58
  28. 28.Which is the greatest: 0.079, 0.22, 0.2, 0.132? (a) 0.079 (b) 0.22 (c) 0.2 (d) 0.132
  29. 29.6.39 + 7.9 = ? (a) 7.18 (b) 14.29 (c) 14.19 (d) 14.39
  30. 30.Which is the smallest: 0.111, 0.22, 0.2, 0.093? (a) 0.111 (b) 0.22 (c) 0.2 (d) 0.093
  31. 31.4.95 + 4.4 = ? (a) 9.25 (b) 9.35 (c) 9.45 (d) 5.39
  32. 32.What is the value of the digit 9 in 96.215? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  33. 33.Which is the smallest: 0.029, 0.2, 0.25, 0.136? (a) 0.029 (b) 0.2 (c) 0.25 (d) 0.136
  34. 34.Which is the greatest: 0.024, 0.6, 0.597, 0.62? (a) 0.024 (b) 0.6 (c) 0.597 (d) 0.62
  35. 35.Which is the smallest: 0.2, 0.23, 0.013, 0.191? (a) 0.2 (b) 0.23 (c) 0.013 (d) 0.191
  36. 36.2.14 + 1.4 = ? (a) 2.28 (b) 3.64 (c) 3.54 (d) 3.44
  37. 37.1.47 + 4.9 = ? (a) 6.47 (b) 6.27 (c) 6.37 (d) 1.96
  38. 38.What is the value of the digit 1 in 41.236? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  39. 39.2.91 + 3.8 = ? (a) 6.61 (b) 6.71 (c) 6.81 (d) 3.29
  40. 40.Which is the smallest: 0.328, 0.4, 0.42, 0.018? (a) 0.328 (b) 0.4 (c) 0.42 (d) 0.018

Answer key

  1. 30
  2. 0.068
  3. 0.091
  4. 0.7
  5. 9.51
  6. 10.84
  7. 14.18
  8. 0.05
  9. 0.029
  10. 5.74
  11. 0.4
  12. 0.1
  13. 0.045
  14. 0.02
  15. 0.004
  16. 0.071
  17. 10.21
  18. 90
  19. 0.069
  20. 0.21
  21. 6
  22. 0.077
  23. 2
  24. 0.2
  25. 15.36
  26. 0.061
  27. 9.48
  28. 0.22
  29. 14.29
  30. 0.093
  31. 9.35
  32. 90
  33. 0.029
  34. 0.62
  35. 0.013
  36. 3.54
  37. 6.37
  38. 1
  39. 6.71
  40. 0.018

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