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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 393 · 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 4 in 74.582? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  2. 2.Which is the greatest: 0.446, 0.5, 0.071, 0.55? (a) 0.446 (b) 0.5 (c) 0.071 (d) 0.55
  3. 3.1.91 + 1.7 = ? (a) 3.61 (b) 3.71 (c) 3.51 (d) 2.08
  4. 4.What is the value of the digit 7 in 78.124? (a) 70 (b) 7 (c) 0.07 (d) 0.7
  5. 5.8.55 + 5.9 = ? (a) 9.14 (b) 14.45 (c) 14.35 (d) 14.55
  6. 6.3.63 + 5.8 = ? (a) 9.43 (b) 4.21 (c) 9.33 (d) 9.53
  7. 7.Which is the greatest: 0.089, 0.62, 0.566, 0.6? (a) 0.089 (b) 0.62 (c) 0.566 (d) 0.6
  8. 8.7.86 + 3.8 = ? (a) 11.56 (b) 8.24 (c) 11.76 (d) 11.66
  9. 9.What is the value of the digit 9 in 96.145? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  10. 10.Which is the greatest: 0.61, 0.055, 0.594, 0.6? (a) 0.61 (b) 0.055 (c) 0.594 (d) 0.6
  11. 11.4.66 + 7.5 = ? (a) 12.06 (b) 12.16 (c) 5.41 (d) 12.26
  12. 12.9.45 + 7.3 = ? (a) 16.65 (b) 16.85 (c) 10.18 (d) 16.75
  13. 13.4.07 + 1.2 = ? (a) 5.27 (b) 5.17 (c) 4.19 (d) 5.37
  14. 14.What is the value of the digit 4 in 56.924? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  15. 15.Which is the greatest: 0.062, 0.52, 0.5, 0.455? (a) 0.062 (b) 0.52 (c) 0.5 (d) 0.455
  16. 16.3.62 + 9.3 = ? (a) 4.55 (b) 12.82 (c) 12.92 (d) 13.02
  17. 17.Which is the greatest: 0.66, 0.096, 0.543, 0.6? (a) 0.66 (b) 0.096 (c) 0.543 (d) 0.6
  18. 18.7.28 + 3.3 = ? (a) 10.68 (b) 10.48 (c) 10.58 (d) 7.61
  19. 19.8.56 + 3.1 = ? (a) 11.76 (b) 11.66 (c) 11.56 (d) 8.87
  20. 20.What is the value of the digit 2 in 26.837? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  21. 21.2.69 + 1.6 = ? (a) 4.29 (b) 4.39 (c) 4.19 (d) 2.85
  22. 22.5.09 + 2.9 = ? (a) 7.99 (b) 8.09 (c) 7.89 (d) 5.38
  23. 23.Which is the smallest: 0.27, 0.044, 0.142, 0.2? (a) 0.27 (b) 0.044 (c) 0.142 (d) 0.2
  24. 24.Which is the smallest: 0.388, 0.4, 0.013, 0.49? (a) 0.388 (b) 0.4 (c) 0.013 (d) 0.49
  25. 25.What is the value of the digit 5 in 17.635? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  26. 26.5.21 + 5.9 = ? (a) 5.8 (b) 11.11 (c) 11.21 (d) 11.01
  27. 27.What is the value of the digit 1 in 19.873? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  28. 28.What is the value of the digit 3 in 23.157? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  29. 29.Which is the smallest: 0.239, 0.3, 0.32, 0.045? (a) 0.239 (b) 0.3 (c) 0.32 (d) 0.045
  30. 30.Which is the smallest: 0.561, 0.038, 0.6, 0.68? (a) 0.561 (b) 0.038 (c) 0.6 (d) 0.68
  31. 31.What is the value of the digit 9 in 29.431? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  32. 32.Which is the greatest: 0.087, 0.135, 0.29, 0.2? (a) 0.087 (b) 0.135 (c) 0.29 (d) 0.2
  33. 33.5.72 + 4.1 = ? (a) 9.82 (b) 6.13 (c) 9.92 (d) 9.72
  34. 34.Which is the smallest: 0.069, 0.475, 0.59, 0.5? (a) 0.069 (b) 0.475 (c) 0.59 (d) 0.5
  35. 35.1.49 + 1.9 = ? (a) 3.29 (b) 3.49 (c) 3.39 (d) 1.68
  36. 36.7.41 + 2.2 = ? (a) 7.63 (b) 9.71 (c) 9.61 (d) 9.51
  37. 37.3.21 + 1.5 = ? (a) 4.81 (b) 3.36 (c) 4.71 (d) 4.61
  38. 38.What is the value of the digit 3 in 35.294? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  39. 39.What is the value of the digit 3 in 93.516? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  40. 40.Which is the smallest: 0.32, 0.245, 0.043, 0.3? (a) 0.32 (b) 0.245 (c) 0.043 (d) 0.3

Answer key

  1. 4
  2. 0.55
  3. 3.61
  4. 70
  5. 14.45
  6. 9.43
  7. 0.62
  8. 11.66
  9. 90
  10. 0.61
  11. 12.16
  12. 16.75
  13. 5.27
  14. 0.004
  15. 0.52
  16. 12.92
  17. 0.66
  18. 10.58
  19. 11.66
  20. 20
  21. 4.29
  22. 7.99
  23. 0.044
  24. 0.013
  25. 0.005
  26. 11.11
  27. 10
  28. 3
  29. 0.045
  30. 0.038
  31. 9
  32. 0.29
  33. 9.82
  34. 0.069
  35. 3.39
  36. 9.61
  37. 4.71
  38. 30
  39. 3
  40. 0.043

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