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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 947 · 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.Which is the smallest: 0.2, 0.016, 0.23, 0.194? (a) 0.2 (b) 0.016 (c) 0.23 (d) 0.194
  2. 2.What is the value of the digit 5 in 81.546? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  3. 3.What is the value of the digit 2 in 12.859? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  4. 4.What is the value of the digit 5 in 95.214? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  5. 5.What is the value of the digit 9 in 49.713? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  6. 6.7.94 + 8.1 = ? (a) 8.75 (b) 16.04 (c) 15.94 (d) 16.14
  7. 7.What is the value of the digit 1 in 65.419? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  8. 8.4.84 + 2.5 = ? (a) 7.44 (b) 5.09 (c) 7.34 (d) 7.24
  9. 9.What is the value of the digit 7 in 81.724? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  10. 10.What is the value of the digit 7 in 75.421? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  11. 11.Which is the smallest: 0.7, 0.092, 0.691, 0.77? (a) 0.7 (b) 0.092 (c) 0.691 (d) 0.77
  12. 12.What is the value of the digit 1 in 13.894? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  13. 13.Which is the greatest: 0.436, 0.021, 0.5, 0.51? (a) 0.436 (b) 0.021 (c) 0.5 (d) 0.51
  14. 14.Which is the smallest: 0.4, 0.333, 0.46, 0.011? (a) 0.4 (b) 0.333 (c) 0.46 (d) 0.011
  15. 15.Which is the smallest: 0.045, 0.34, 0.3, 0.243? (a) 0.045 (b) 0.34 (c) 0.3 (d) 0.243
  16. 16.6.09 + 2.8 = ? (a) 8.99 (b) 6.37 (c) 8.79 (d) 8.89
  17. 17.Which is the smallest: 0.069, 0.8, 0.88, 0.763? (a) 0.069 (b) 0.8 (c) 0.88 (d) 0.763
  18. 18.What is the value of the digit 3 in 51.234? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  19. 19.What is the value of the digit 7 in 76.321? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  20. 20.3.58 + 7.5 = ? (a) 11.08 (b) 10.98 (c) 4.33 (d) 11.18
  21. 21.Which is the smallest: 0.072, 0.78, 0.7, 0.634? (a) 0.072 (b) 0.78 (c) 0.7 (d) 0.634
  22. 22.5.01 + 1.2 = ? (a) 6.11 (b) 6.21 (c) 5.13 (d) 6.31
  23. 23.What is the value of the digit 3 in 97.613? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  24. 24.Which is the smallest: 0.061, 0.82, 0.8, 0.785? (a) 0.061 (b) 0.82 (c) 0.8 (d) 0.785
  25. 25.What is the value of the digit 4 in 64.358? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  26. 26.What is the value of the digit 4 in 51.746? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  27. 27.6.07 + 2.1 = ? (a) 8.07 (b) 8.27 (c) 6.28 (d) 8.17
  28. 28.Which is the smallest: 0.4, 0.49, 0.397, 0.063? (a) 0.4 (b) 0.49 (c) 0.397 (d) 0.063
  29. 29.What is the value of the digit 6 in 61.975? (a) 0.06 (b) 0.6 (c) 6 (d) 60
  30. 30.1.86 + 4.7 = ? (a) 6.46 (b) 6.56 (c) 6.66 (d) 2.33
  31. 31.2.44 + 3.8 = ? (a) 6.14 (b) 2.82 (c) 6.24 (d) 6.34
  32. 32.What is the value of the digit 3 in 25.314? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  33. 33.Which is the smallest: 0.43, 0.313, 0.022, 0.4? (a) 0.43 (b) 0.313 (c) 0.022 (d) 0.4
  34. 34.3.31 + 1.9 = ? (a) 3.5 (b) 5.11 (c) 5.31 (d) 5.21
  35. 35.6.89 + 7.6 = ? (a) 14.39 (b) 14.59 (c) 7.65 (d) 14.49
  36. 36.Which is the smallest: 0.663, 0.032, 0.7, 0.75? (a) 0.663 (b) 0.032 (c) 0.7 (d) 0.75
  37. 37.Which is the greatest: 0.413, 0.51, 0.5, 0.066? (a) 0.413 (b) 0.51 (c) 0.5 (d) 0.066
  38. 38.Which is the greatest: 0.5, 0.52, 0.429, 0.052? (a) 0.5 (b) 0.52 (c) 0.429 (d) 0.052
  39. 39.Which is the greatest: 0.83, 0.038, 0.8, 0.756? (a) 0.83 (b) 0.038 (c) 0.8 (d) 0.756
  40. 40.1.79 + 1.8 = ? (a) 3.59 (b) 3.69 (c) 3.49 (d) 1.97

Answer key

  1. 0.016
  2. 0.5
  3. 2
  4. 5
  5. 9
  6. 16.04
  7. 0.01
  8. 7.34
  9. 0.7
  10. 70
  11. 0.092
  12. 10
  13. 0.51
  14. 0.011
  15. 0.045
  16. 8.89
  17. 0.069
  18. 0.03
  19. 70
  20. 11.08
  21. 0.072
  22. 6.21
  23. 0.003
  24. 0.061
  25. 4
  26. 0.04
  27. 8.17
  28. 0.063
  29. 60
  30. 6.56
  31. 6.24
  32. 0.3
  33. 0.022
  34. 5.21
  35. 14.49
  36. 0.032
  37. 0.51
  38. 0.52
  39. 0.83
  40. 3.59

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