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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 228 · 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 79.135? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  2. 2.8.14 + 3.2 = ? (a) 8.46 (b) 11.24 (c) 11.34 (d) 11.44
  3. 3.3.76 + 8.2 = ? (a) 11.86 (b) 12.06 (c) 4.58 (d) 11.96
  4. 4.What is the value of the digit 7 in 89.746? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  5. 5.What is the value of the digit 2 in 42.617? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  6. 6.Which is the smallest: 0.062, 0.446, 0.54, 0.5? (a) 0.062 (b) 0.446 (c) 0.54 (d) 0.5
  7. 7.Which is the smallest: 0.654, 0.75, 0.7, 0.026? (a) 0.654 (b) 0.75 (c) 0.7 (d) 0.026
  8. 8.Which is the smallest: 0.3, 0.261, 0.31, 0.032? (a) 0.3 (b) 0.261 (c) 0.31 (d) 0.032
  9. 9.Which is the smallest: 0.385, 0.45, 0.4, 0.084? (a) 0.385 (b) 0.45 (c) 0.4 (d) 0.084
  10. 10.2.01 + 3.6 = ? (a) 2.37 (b) 5.51 (c) 5.71 (d) 5.61
  11. 11.2.41 + 7.2 = ? (a) 9.71 (b) 3.13 (c) 9.61 (d) 9.51
  12. 12.Which is the greatest: 0.25, 0.043, 0.139, 0.2? (a) 0.25 (b) 0.043 (c) 0.139 (d) 0.2
  13. 13.2.51 + 8.9 = ? (a) 11.31 (b) 3.4 (c) 11.51 (d) 11.41
  14. 14.1.88 + 2.2 = ? (a) 4.08 (b) 4.18 (c) 2.1 (d) 3.98
  15. 15.5.12 + 8.5 = ? (a) 13.72 (b) 13.52 (c) 5.97 (d) 13.62
  16. 16.Which is the greatest: 0.57, 0.5, 0.472, 0.035? (a) 0.57 (b) 0.5 (c) 0.472 (d) 0.035
  17. 17.What is the value of the digit 4 in 46.123? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  18. 18.Which is the greatest: 0.018, 0.748, 0.8, 0.85? (a) 0.018 (b) 0.748 (c) 0.8 (d) 0.85
  19. 19.9.68 + 4.4 = ? (a) 13.98 (b) 10.12 (c) 14.18 (d) 14.08
  20. 20.9.91 + 7.3 = ? (a) 10.64 (b) 17.11 (c) 17.31 (d) 17.21
  21. 21.What is the value of the digit 2 in 93.276? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  22. 22.What is the value of the digit 4 in 64.712? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  23. 23.7.78 + 3.1 = ? (a) 10.78 (b) 8.09 (c) 10.88 (d) 10.98
  24. 24.8.38 + 7.8 = ? (a) 16.08 (b) 16.18 (c) 16.28 (d) 9.16
  25. 25.2.38 + 2.7 = ? (a) 2.65 (b) 4.98 (c) 5.08 (d) 5.18
  26. 26.What is the value of the digit 3 in 35.769? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  27. 27.Which is the smallest: 0.59, 0.464, 0.055, 0.5? (a) 0.59 (b) 0.464 (c) 0.055 (d) 0.5
  28. 28.3.81 + 9.3 = ? (a) 13.11 (b) 13.01 (c) 13.21 (d) 4.74
  29. 29.What is the value of the digit 7 in 32.517? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  30. 30.Which is the smallest: 0.032, 0.225, 0.3, 0.33? (a) 0.032 (b) 0.225 (c) 0.3 (d) 0.33
  31. 31.Which is the greatest: 0.8, 0.785, 0.83, 0.095? (a) 0.8 (b) 0.785 (c) 0.83 (d) 0.095
  32. 32.2.08 + 4.1 = ? (a) 6.08 (b) 2.49 (c) 6.18 (d) 6.28
  33. 33.What is the value of the digit 1 in 27.891? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  34. 34.Which is the smallest: 0.718, 0.81, 0.087, 0.8? (a) 0.718 (b) 0.81 (c) 0.087 (d) 0.8
  35. 35.3.33 + 2.8 = ? (a) 6.13 (b) 6.23 (c) 6.03 (d) 3.61
  36. 36.2.92 + 6.7 = ? (a) 9.52 (b) 9.72 (c) 3.59 (d) 9.62
  37. 37.4.03 + 2.3 = ? (a) 6.33 (b) 4.26 (c) 6.23 (d) 6.43
  38. 38.Which is the smallest: 0.093, 0.162, 0.28, 0.2? (a) 0.093 (b) 0.162 (c) 0.28 (d) 0.2
  39. 39.4.15 + 6.7 = ? (a) 10.95 (b) 10.85 (c) 10.75 (d) 4.82
  40. 40.What is the value of the digit 8 in 96.287? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08

Answer key

  1. 0.03
  2. 11.34
  3. 11.96
  4. 0.7
  5. 2
  6. 0.062
  7. 0.026
  8. 0.032
  9. 0.084
  10. 5.61
  11. 9.61
  12. 0.25
  13. 11.41
  14. 4.08
  15. 13.62
  16. 0.57
  17. 40
  18. 0.85
  19. 14.08
  20. 17.21
  21. 0.2
  22. 4
  23. 10.88
  24. 16.18
  25. 5.08
  26. 30
  27. 0.055
  28. 13.11
  29. 0.007
  30. 0.032
  31. 0.83
  32. 6.18
  33. 0.001
  34. 0.087
  35. 6.13
  36. 9.62
  37. 6.33
  38. 0.093
  39. 10.85
  40. 0.08

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