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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 295 · 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 greatest: 0.5, 0.471, 0.58, 0.022? (a) 0.5 (b) 0.471 (c) 0.58 (d) 0.022
  2. 2.Which is the smallest: 0.21, 0.2, 0.145, 0.053? (a) 0.21 (b) 0.2 (c) 0.145 (d) 0.053
  3. 3.Which is the smallest: 0.3, 0.056, 0.32, 0.224? (a) 0.3 (b) 0.056 (c) 0.32 (d) 0.224
  4. 4.What is the value of the digit 1 in 19.683? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  5. 5.Which is the smallest: 0.8, 0.83, 0.098, 0.731? (a) 0.8 (b) 0.83 (c) 0.098 (d) 0.731
  6. 6.Which is the greatest: 0.8, 0.724, 0.017, 0.84? (a) 0.8 (b) 0.724 (c) 0.017 (d) 0.84
  7. 7.Which is the smallest: 0.074, 0.761, 0.81, 0.8? (a) 0.074 (b) 0.761 (c) 0.81 (d) 0.8
  8. 8.What is the value of the digit 9 in 71.398? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  9. 9.4.65 + 5.9 = ? (a) 10.45 (b) 10.65 (c) 10.55 (d) 5.24
  10. 10.3.63 + 5.4 = ? (a) 4.17 (b) 9.03 (c) 9.13 (d) 8.93
  11. 11.Which is the greatest: 0.723, 0.042, 0.89, 0.8? (a) 0.723 (b) 0.042 (c) 0.89 (d) 0.8
  12. 12.Which is the greatest: 0.166, 0.042, 0.22, 0.2? (a) 0.166 (b) 0.042 (c) 0.22 (d) 0.2
  13. 13.What is the value of the digit 2 in 28.193? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  14. 14.Which is the smallest: 0.73, 0.032, 0.682, 0.7? (a) 0.73 (b) 0.032 (c) 0.682 (d) 0.7
  15. 15.Which is the greatest: 0.25, 0.2, 0.066, 0.151? (a) 0.25 (b) 0.2 (c) 0.066 (d) 0.151
  16. 16.What is the value of the digit 8 in 32.489? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  17. 17.What is the value of the digit 3 in 48.357? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  18. 18.Which is the greatest: 0.074, 0.5, 0.454, 0.58? (a) 0.074 (b) 0.5 (c) 0.454 (d) 0.58
  19. 19.What is the value of the digit 1 in 28.413? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  20. 20.1.36 + 2.8 = ? (a) 4.16 (b) 1.64 (c) 4.26 (d) 4.06
  21. 21.6.16 + 9.1 = ? (a) 15.26 (b) 15.16 (c) 7.07 (d) 15.36
  22. 22.2.82 + 5.3 = ? (a) 3.35 (b) 8.22 (c) 8.12 (d) 8.02
  23. 23.What is the value of the digit 2 in 38.627? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  24. 24.1.37 + 3.6 = ? (a) 1.73 (b) 4.87 (c) 5.07 (d) 4.97
  25. 25.Which is the smallest: 0.045, 0.5, 0.55, 0.435? (a) 0.045 (b) 0.5 (c) 0.55 (d) 0.435
  26. 26.Which is the smallest: 0.4, 0.45, 0.015, 0.396? (a) 0.4 (b) 0.45 (c) 0.015 (d) 0.396
  27. 27.Which is the smallest: 0.45, 0.343, 0.061, 0.4? (a) 0.45 (b) 0.343 (c) 0.061 (d) 0.4
  28. 28.What is the value of the digit 4 in 41.637? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  29. 29.What is the value of the digit 4 in 79.142? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  30. 30.What is the value of the digit 6 in 15.624? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  31. 31.7.12 + 2.3 = ? (a) 9.52 (b) 9.32 (c) 7.35 (d) 9.42
  32. 32.Which is the smallest: 0.322, 0.45, 0.011, 0.4? (a) 0.322 (b) 0.45 (c) 0.011 (d) 0.4
  33. 33.What is the value of the digit 7 in 83.721? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  34. 34.Which is the smallest: 0.041, 0.391, 0.43, 0.4? (a) 0.041 (b) 0.391 (c) 0.43 (d) 0.4
  35. 35.8.83 + 5.6 = ? (a) 9.39 (b) 14.53 (c) 14.43 (d) 14.33
  36. 36.Which is the smallest: 0.032, 0.8, 0.86, 0.711? (a) 0.032 (b) 0.8 (c) 0.86 (d) 0.711
  37. 37.Which is the greatest: 0.765, 0.036, 0.83, 0.8? (a) 0.765 (b) 0.036 (c) 0.83 (d) 0.8
  38. 38.What is the value of the digit 1 in 68.172? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  39. 39.Which is the greatest: 0.55, 0.051, 0.493, 0.5? (a) 0.55 (b) 0.051 (c) 0.493 (d) 0.5
  40. 40.What is the value of the digit 7 in 96.874? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7

Answer key

  1. 0.58
  2. 0.053
  3. 0.056
  4. 10
  5. 0.098
  6. 0.84
  7. 0.074
  8. 0.09
  9. 10.55
  10. 9.03
  11. 0.89
  12. 0.22
  13. 20
  14. 0.032
  15. 0.25
  16. 0.08
  17. 0.3
  18. 0.58
  19. 0.01
  20. 4.16
  21. 15.26
  22. 8.12
  23. 0.02
  24. 4.97
  25. 0.045
  26. 0.015
  27. 0.061
  28. 40
  29. 0.04
  30. 0.6
  31. 9.42
  32. 0.011
  33. 0.7
  34. 0.041
  35. 14.43
  36. 0.032
  37. 0.83
  38. 0.1
  39. 0.55
  40. 0.07

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