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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 63 · 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 2 in 75.268? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  2. 2.What is the value of the digit 1 in 64.251? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  3. 3.Which is the greatest: 0.012, 0.79, 0.652, 0.7? (a) 0.012 (b) 0.79 (c) 0.652 (d) 0.7
  4. 4.1.23 + 2.9 = ? (a) 1.52 (b) 4.13 (c) 4.23 (d) 4.03
  5. 5.Which is the greatest: 0.651, 0.76, 0.7, 0.041? (a) 0.651 (b) 0.76 (c) 0.7 (d) 0.041
  6. 6.2.72 + 3.4 = ? (a) 3.06 (b) 6.12 (c) 6.02 (d) 6.22
  7. 7.Which is the smallest: 0.038, 0.79, 0.7, 0.671? (a) 0.038 (b) 0.79 (c) 0.7 (d) 0.671
  8. 8.What is the value of the digit 1 in 45.127? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  9. 9.What is the value of the digit 5 in 87.952? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  10. 10.2.98 + 9.5 = ? (a) 12.58 (b) 3.93 (c) 12.48 (d) 12.38
  11. 11.What is the value of the digit 7 in 39.471? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  12. 12.2.03 + 5.8 = ? (a) 2.61 (b) 7.83 (c) 7.93 (d) 7.73
  13. 13.Which is the smallest: 0.6, 0.63, 0.021, 0.524? (a) 0.6 (b) 0.63 (c) 0.021 (d) 0.524
  14. 14.Which is the greatest: 0.56, 0.477, 0.095, 0.5? (a) 0.56 (b) 0.477 (c) 0.095 (d) 0.5
  15. 15.Which is the smallest: 0.016, 0.3, 0.39, 0.221? (a) 0.016 (b) 0.3 (c) 0.39 (d) 0.221
  16. 16.Which is the smallest: 0.012, 0.7, 0.684, 0.76? (a) 0.012 (b) 0.7 (c) 0.684 (d) 0.76
  17. 17.4.03 + 2.2 = ? (a) 6.23 (b) 6.13 (c) 4.25 (d) 6.33
  18. 18.5.81 + 1.5 = ? (a) 7.31 (b) 7.21 (c) 7.41 (d) 5.96
  19. 19.Which is the greatest: 0.032, 0.2, 0.23, 0.126? (a) 0.032 (b) 0.2 (c) 0.23 (d) 0.126
  20. 20.What is the value of the digit 5 in 57.431? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  21. 21.4.87 + 8.1 = ? (a) 5.68 (b) 12.97 (c) 12.87 (d) 13.07
  22. 22.Which is the smallest: 0.5, 0.55, 0.018, 0.433? (a) 0.5 (b) 0.55 (c) 0.018 (d) 0.433
  23. 23.6.94 + 1.5 = ? (a) 7.09 (b) 8.44 (c) 8.34 (d) 8.54
  24. 24.What is the value of the digit 8 in 51.982? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  25. 25.Which is the smallest: 0.039, 0.4, 0.43, 0.342? (a) 0.039 (b) 0.4 (c) 0.43 (d) 0.342
  26. 26.What is the value of the digit 3 in 37.812? (a) 0.03 (b) 3 (c) 30 (d) 0.3
  27. 27.What is the value of the digit 3 in 54.173? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  28. 28.9.01 + 1.7 = ? (a) 10.71 (b) 9.18 (c) 10.61 (d) 10.81
  29. 29.What is the value of the digit 3 in 54.238? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  30. 30.What is the value of the digit 5 in 81.652? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  31. 31.What is the value of the digit 8 in 18.942? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  32. 32.What is the value of the digit 3 in 38.756? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  33. 33.8.37 + 8.9 = ? (a) 17.37 (b) 9.26 (c) 17.27 (d) 17.17
  34. 34.What is the value of the digit 2 in 63.241? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  35. 35.Which is the greatest: 0.114, 0.046, 0.22, 0.2? (a) 0.114 (b) 0.046 (c) 0.22 (d) 0.2
  36. 36.5.02 + 2.9 = ? (a) 7.92 (b) 7.82 (c) 8.02 (d) 5.31
  37. 37.Which is the greatest: 0.3, 0.058, 0.38, 0.226? (a) 0.3 (b) 0.058 (c) 0.38 (d) 0.226
  38. 38.9.01 + 9.9 = ? (a) 18.91 (b) 18.81 (c) 19.01 (d) 10
  39. 39.2.14 + 9.8 = ? (a) 12.04 (b) 3.12 (c) 11.84 (d) 11.94
  40. 40.8.24 + 6.3 = ? (a) 14.64 (b) 14.44 (c) 14.54 (d) 8.87

Answer key

  1. 0.2
  2. 0.001
  3. 0.79
  4. 4.13
  5. 0.76
  6. 6.12
  7. 0.038
  8. 0.1
  9. 0.05
  10. 12.48
  11. 0.07
  12. 7.83
  13. 0.021
  14. 0.56
  15. 0.016
  16. 0.012
  17. 6.23
  18. 7.31
  19. 0.23
  20. 50
  21. 12.97
  22. 0.018
  23. 8.44
  24. 0.08
  25. 0.039
  26. 30
  27. 0.003
  28. 10.71
  29. 0.03
  30. 0.05
  31. 8
  32. 30
  33. 17.27
  34. 0.2
  35. 0.22
  36. 7.92
  37. 0.38
  38. 18.91
  39. 11.94
  40. 14.54

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