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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 35 · 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. 1.5.87 + 2.9 = ? (a) 8.67 (b) 6.16 (c) 8.87 (d) 8.77
  2. 2.Which is the greatest: 0.4, 0.081, 0.41, 0.389? (a) 0.4 (b) 0.081 (c) 0.41 (d) 0.389
  3. 3.8.45 + 1.3 = ? (a) 9.75 (b) 9.65 (c) 9.85 (d) 8.58
  4. 4.What is the value of the digit 3 in 32.148? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  5. 5.6.06 + 3.3 = ? (a) 9.46 (b) 6.39 (c) 9.36 (d) 9.26
  6. 6.1.17 + 2.2 = ? (a) 3.47 (b) 3.37 (c) 3.27 (d) 1.39
  7. 7.7.39 + 5.7 = ? (a) 12.99 (b) 13.09 (c) 13.19 (d) 7.96
  8. 8.Which is the smallest: 0.3, 0.024, 0.272, 0.31? (a) 0.3 (b) 0.024 (c) 0.272 (d) 0.31
  9. 9.4.44 + 3.1 = ? (a) 7.44 (b) 7.64 (c) 4.75 (d) 7.54
  10. 10.What is the value of the digit 9 in 29.416? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  11. 11.Which is the smallest: 0.056, 0.68, 0.6, 0.543? (a) 0.056 (b) 0.68 (c) 0.6 (d) 0.543
  12. 12.What is the value of the digit 7 in 42.378? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  13. 13.Which is the greatest: 0.086, 0.311, 0.4, 0.41? (a) 0.086 (b) 0.311 (c) 0.4 (d) 0.41
  14. 14.Which is the smallest: 0.747, 0.82, 0.011, 0.8? (a) 0.747 (b) 0.82 (c) 0.011 (d) 0.8
  15. 15.3.64 + 3.4 = ? (a) 7.14 (b) 3.98 (c) 7.04 (d) 6.94
  16. 16.6.19 + 7.6 = ? (a) 13.79 (b) 6.95 (c) 13.69 (d) 13.89
  17. 17.9.58 + 4.8 = ? (a) 14.38 (b) 14.28 (c) 14.48 (d) 10.06
  18. 18.What is the value of the digit 7 in 74.856? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  19. 19.Which is the greatest: 0.62, 0.511, 0.058, 0.6? (a) 0.62 (b) 0.511 (c) 0.058 (d) 0.6
  20. 20.4.11 + 9.6 = ? (a) 13.71 (b) 5.07 (c) 13.61 (d) 13.81
  21. 21.1.61 + 8.5 = ? (a) 10.01 (b) 10.21 (c) 2.46 (d) 10.11
  22. 22.2.69 + 2.3 = ? (a) 4.99 (b) 4.89 (c) 2.92 (d) 5.09
  23. 23.Which is the greatest: 0.365, 0.068, 0.4, 0.48? (a) 0.365 (b) 0.068 (c) 0.4 (d) 0.48
  24. 24.What is the value of the digit 8 in 47.286? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  25. 25.What is the value of the digit 8 in 71.864? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  26. 26.Which is the greatest: 0.3, 0.086, 0.31, 0.275? (a) 0.3 (b) 0.086 (c) 0.31 (d) 0.275
  27. 27.8.89 + 9.1 = ? (a) 9.8 (b) 17.89 (c) 17.99 (d) 18.09
  28. 28.4.38 + 9.7 = ? (a) 5.35 (b) 14.18 (c) 14.08 (d) 13.98
  29. 29.What is the value of the digit 1 in 26.514? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  30. 30.2.05 + 4.4 = ? (a) 6.35 (b) 6.45 (c) 2.49 (d) 6.55
  31. 31.Which is the smallest: 0.059, 0.6, 0.517, 0.64? (a) 0.059 (b) 0.6 (c) 0.517 (d) 0.64
  32. 32.4.43 + 2.4 = ? (a) 4.67 (b) 6.93 (c) 6.83 (d) 6.73
  33. 33.Which is the smallest: 0.347, 0.097, 0.41, 0.4? (a) 0.347 (b) 0.097 (c) 0.41 (d) 0.4
  34. 34.3.41 + 2.7 = ? (a) 6.21 (b) 6.11 (c) 3.68 (d) 6.01
  35. 35.2.62 + 1.4 = ? (a) 4.02 (b) 3.92 (c) 4.12 (d) 2.76
  36. 36.7.06 + 1.4 = ? (a) 8.56 (b) 8.36 (c) 8.46 (d) 7.2
  37. 37.Which is the greatest: 0.616, 0.037, 0.72, 0.7? (a) 0.616 (b) 0.037 (c) 0.72 (d) 0.7
  38. 38.9.41 + 8.5 = ? (a) 17.81 (b) 17.91 (c) 10.26 (d) 18.01
  39. 39.5.71 + 4.8 = ? (a) 10.41 (b) 6.19 (c) 10.51 (d) 10.61
  40. 40.What is the value of the digit 4 in 94.182? (a) 0.4 (b) 40 (c) 0.04 (d) 4

Answer key

  1. 8.77
  2. 0.41
  3. 9.75
  4. 30
  5. 9.36
  6. 3.37
  7. 13.09
  8. 0.024
  9. 7.54
  10. 9
  11. 0.056
  12. 0.07
  13. 0.41
  14. 0.011
  15. 7.04
  16. 13.79
  17. 14.38
  18. 70
  19. 0.62
  20. 13.71
  21. 10.11
  22. 4.99
  23. 0.48
  24. 0.08
  25. 0.8
  26. 0.31
  27. 17.99
  28. 14.08
  29. 0.01
  30. 6.45
  31. 0.059
  32. 6.83
  33. 0.097
  34. 6.11
  35. 4.02
  36. 8.46
  37. 0.72
  38. 17.91
  39. 10.51
  40. 4

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