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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 866 · 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 91.346? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  2. 2.What is the value of the digit 4 in 48.591? (a) 4 (b) 40 (c) 0.04 (d) 0.4
  3. 3.1.44 + 3.8 = ? (a) 1.82 (b) 5.34 (c) 5.24 (d) 5.14
  4. 4.2.96 + 7.7 = ? (a) 10.56 (b) 3.73 (c) 10.76 (d) 10.66
  5. 5.Which is the smallest: 0.644, 0.79, 0.7, 0.019? (a) 0.644 (b) 0.79 (c) 0.7 (d) 0.019
  6. 6.Which is the smallest: 0.097, 0.661, 0.7, 0.78? (a) 0.097 (b) 0.661 (c) 0.7 (d) 0.78
  7. 7.What is the value of the digit 2 in 14.236? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  8. 8.7.06 + 6.9 = ? (a) 7.75 (b) 13.86 (c) 14.06 (d) 13.96
  9. 9.4.41 + 2.1 = ? (a) 6.41 (b) 6.61 (c) 6.51 (d) 4.62
  10. 10.8.71 + 4.1 = ? (a) 12.81 (b) 9.12 (c) 12.91 (d) 12.71
  11. 11.4.51 + 9.5 = ? (a) 14.11 (b) 14.01 (c) 13.91 (d) 5.46
  12. 12.Which is the smallest: 0.6, 0.069, 0.61, 0.516? (a) 0.6 (b) 0.069 (c) 0.61 (d) 0.516
  13. 13.What is the value of the digit 1 in 89.217? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  14. 14.Which is the smallest: 0.85, 0.068, 0.8, 0.715? (a) 0.85 (b) 0.068 (c) 0.8 (d) 0.715
  15. 15.What is the value of the digit 3 in 28.153? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  16. 16.Which is the greatest: 0.2, 0.137, 0.032, 0.25? (a) 0.2 (b) 0.137 (c) 0.032 (d) 0.25
  17. 17.3.57 + 5.8 = ? (a) 9.37 (b) 4.15 (c) 9.47 (d) 9.27
  18. 18.What is the value of the digit 6 in 42.635? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  19. 19.Which is the smallest: 0.31, 0.059, 0.3, 0.282? (a) 0.31 (b) 0.059 (c) 0.3 (d) 0.282
  20. 20.Which is the smallest: 0.353, 0.4, 0.47, 0.064? (a) 0.353 (b) 0.4 (c) 0.47 (d) 0.064
  21. 21.Which is the greatest: 0.72, 0.7, 0.073, 0.686? (a) 0.72 (b) 0.7 (c) 0.073 (d) 0.686
  22. 22.Which is the greatest: 0.065, 0.217, 0.3, 0.31? (a) 0.065 (b) 0.217 (c) 0.3 (d) 0.31
  23. 23.Which is the smallest: 0.082, 0.69, 0.6, 0.557? (a) 0.082 (b) 0.69 (c) 0.6 (d) 0.557
  24. 24.8.79 + 6.3 = ? (a) 15.09 (b) 15.19 (c) 14.99 (d) 9.42
  25. 25.1.64 + 8.8 = ? (a) 10.54 (b) 10.44 (c) 10.34 (d) 2.52
  26. 26.4.48 + 2.5 = ? (a) 6.88 (b) 4.73 (c) 6.98 (d) 7.08
  27. 27.Which is the greatest: 0.29, 0.2, 0.163, 0.092? (a) 0.29 (b) 0.2 (c) 0.163 (d) 0.092
  28. 28.What is the value of the digit 5 in 96.581? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  29. 29.What is the value of the digit 8 in 59.481? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  30. 30.5.59 + 2.9 = ? (a) 8.59 (b) 8.39 (c) 5.88 (d) 8.49
  31. 31.5.11 + 2.7 = ? (a) 5.38 (b) 7.91 (c) 7.81 (d) 7.71
  32. 32.5.29 + 8.5 = ? (a) 13.89 (b) 13.69 (c) 13.79 (d) 6.14
  33. 33.What is the value of the digit 5 in 28.513? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  34. 34.9.81 + 8.7 = ? (a) 18.41 (b) 18.51 (c) 10.68 (d) 18.61
  35. 35.Which is the smallest: 0.014, 0.5, 0.452, 0.51? (a) 0.014 (b) 0.5 (c) 0.452 (d) 0.51
  36. 36.3.62 + 1.9 = ? (a) 3.81 (b) 5.52 (c) 5.62 (d) 5.42
  37. 37.Which is the greatest: 0.113, 0.2, 0.23, 0.039? (a) 0.113 (b) 0.2 (c) 0.23 (d) 0.039
  38. 38.1.31 + 8.3 = ? (a) 9.71 (b) 9.51 (c) 9.61 (d) 2.14
  39. 39.2.11 + 8.9 = ? (a) 10.91 (b) 11.11 (c) 11.01 (d) 3
  40. 40.6.87 + 4.5 = ? (a) 7.32 (b) 11.47 (c) 11.27 (d) 11.37

Answer key

  1. 0.04
  2. 40
  3. 5.24
  4. 10.66
  5. 0.019
  6. 0.097
  7. 0.2
  8. 13.96
  9. 6.51
  10. 12.81
  11. 14.01
  12. 0.069
  13. 0.01
  14. 0.068
  15. 0.003
  16. 0.25
  17. 9.37
  18. 0.6
  19. 0.059
  20. 0.064
  21. 0.72
  22. 0.31
  23. 0.082
  24. 15.09
  25. 10.44
  26. 6.98
  27. 0.29
  28. 0.5
  29. 0.08
  30. 8.49
  31. 7.81
  32. 13.79
  33. 0.5
  34. 18.51
  35. 0.014
  36. 5.52
  37. 0.23
  38. 9.61
  39. 11.01
  40. 11.37

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