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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 309 · 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 5 in 35.924? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  2. 2.Which is the smallest: 0.029, 0.65, 0.586, 0.6? (a) 0.029 (b) 0.65 (c) 0.586 (d) 0.6
  3. 3.Which is the smallest: 0.075, 0.491, 0.5, 0.51? (a) 0.075 (b) 0.491 (c) 0.5 (d) 0.51
  4. 4.Which is the smallest: 0.72, 0.667, 0.7, 0.061? (a) 0.72 (b) 0.667 (c) 0.7 (d) 0.061
  5. 5.Which is the smallest: 0.062, 0.6, 0.523, 0.61? (a) 0.062 (b) 0.6 (c) 0.523 (d) 0.61
  6. 6.What is the value of the digit 9 in 83.569? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  7. 7.Which is the greatest: 0.85, 0.748, 0.8, 0.044? (a) 0.85 (b) 0.748 (c) 0.8 (d) 0.044
  8. 8.Which is the smallest: 0.6, 0.63, 0.553, 0.053? (a) 0.6 (b) 0.63 (c) 0.553 (d) 0.053
  9. 9.5.84 + 1.1 = ? (a) 6.84 (b) 5.95 (c) 6.94 (d) 7.04
  10. 10.Which is the smallest: 0.042, 0.376, 0.4, 0.49? (a) 0.042 (b) 0.376 (c) 0.4 (d) 0.49
  11. 11.Which is the greatest: 0.21, 0.113, 0.2, 0.028? (a) 0.21 (b) 0.113 (c) 0.2 (d) 0.028
  12. 12.8.68 + 1.8 = ? (a) 10.58 (b) 8.86 (c) 10.38 (d) 10.48
  13. 13.1.41 + 9.5 = ? (a) 2.36 (b) 11.01 (c) 10.91 (d) 10.81
  14. 14.Which is the greatest: 0.082, 0.29, 0.136, 0.2? (a) 0.082 (b) 0.29 (c) 0.136 (d) 0.2
  15. 15.5.54 + 4.3 = ? (a) 9.74 (b) 5.97 (c) 9.94 (d) 9.84
  16. 16.3.74 + 8.1 = ? (a) 4.55 (b) 11.84 (c) 11.74 (d) 11.94
  17. 17.3.81 + 5.9 = ? (a) 9.81 (b) 9.71 (c) 4.4 (d) 9.61
  18. 18.Which is the greatest: 0.32, 0.281, 0.099, 0.3? (a) 0.32 (b) 0.281 (c) 0.099 (d) 0.3
  19. 19.What is the value of the digit 3 in 87.153? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  20. 20.Which is the greatest: 0.8, 0.83, 0.081, 0.741? (a) 0.8 (b) 0.83 (c) 0.081 (d) 0.741
  21. 21.Which is the smallest: 0.725, 0.063, 0.8, 0.82? (a) 0.725 (b) 0.063 (c) 0.8 (d) 0.82
  22. 22.What is the value of the digit 3 in 13.524? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  23. 23.What is the value of the digit 3 in 89.263? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  24. 24.What is the value of the digit 6 in 62.359? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  25. 25.4.46 + 4.3 = ? (a) 8.66 (b) 4.89 (c) 8.76 (d) 8.86
  26. 26.6.07 + 7.2 = ? (a) 13.17 (b) 13.37 (c) 13.27 (d) 6.79
  27. 27.5.22 + 2.5 = ? (a) 7.72 (b) 5.47 (c) 7.62 (d) 7.82
  28. 28.Which is the greatest: 0.31, 0.236, 0.017, 0.3? (a) 0.31 (b) 0.236 (c) 0.017 (d) 0.3
  29. 29.7.17 + 6.2 = ? (a) 13.37 (b) 13.27 (c) 7.79 (d) 13.47
  30. 30.6.02 + 4.2 = ? (a) 10.12 (b) 10.32 (c) 10.22 (d) 6.44
  31. 31.Which is the greatest: 0.54, 0.5, 0.024, 0.474? (a) 0.54 (b) 0.5 (c) 0.024 (d) 0.474
  32. 32.3.85 + 7.8 = ? (a) 11.55 (b) 4.63 (c) 11.65 (d) 11.75
  33. 33.Which is the smallest: 0.7, 0.069, 0.631, 0.73? (a) 0.7 (b) 0.069 (c) 0.631 (d) 0.73
  34. 34.Which is the smallest: 0.079, 0.7, 0.656, 0.71? (a) 0.079 (b) 0.7 (c) 0.656 (d) 0.71
  35. 35.Which is the smallest: 0.337, 0.4, 0.42, 0.041? (a) 0.337 (b) 0.4 (c) 0.42 (d) 0.041
  36. 36.What is the value of the digit 3 in 87.325? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  37. 37.1.66 + 4.8 = ? (a) 6.36 (b) 6.56 (c) 2.14 (d) 6.46
  38. 38.What is the value of the digit 2 in 15.429? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  39. 39.Which is the greatest: 0.521, 0.66, 0.023, 0.6? (a) 0.521 (b) 0.66 (c) 0.023 (d) 0.6
  40. 40.What is the value of the digit 9 in 34.198? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9

Answer key

  1. 5
  2. 0.029
  3. 0.075
  4. 0.061
  5. 0.062
  6. 0.009
  7. 0.85
  8. 0.053
  9. 6.94
  10. 0.042
  11. 0.21
  12. 10.48
  13. 10.91
  14. 0.29
  15. 9.84
  16. 11.84
  17. 9.71
  18. 0.32
  19. 0.003
  20. 0.83
  21. 0.063
  22. 3
  23. 0.003
  24. 60
  25. 8.76
  26. 13.27
  27. 7.72
  28. 0.31
  29. 13.37
  30. 10.22
  31. 0.54
  32. 11.65
  33. 0.069
  34. 0.079
  35. 0.041
  36. 0.3
  37. 6.46
  38. 0.02
  39. 0.66
  40. 0.09

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