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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 667 · 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. 1.2.22 + 9.9 = ? (a) 12.12 (b) 12.02 (c) 3.21 (d) 12.22
  2. 2.Which is the smallest: 0.31, 0.014, 0.215, 0.3? (a) 0.31 (b) 0.014 (c) 0.215 (d) 0.3
  3. 3.Which is the greatest: 0.53, 0.021, 0.5, 0.442? (a) 0.53 (b) 0.021 (c) 0.5 (d) 0.442
  4. 4.What is the value of the digit 2 in 57.268? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  5. 5.2.91 + 7.5 = ? (a) 3.66 (b) 10.31 (c) 10.41 (d) 10.51
  6. 6.Which is the greatest: 0.466, 0.092, 0.57, 0.5? (a) 0.466 (b) 0.092 (c) 0.57 (d) 0.5
  7. 7.Which is the greatest: 0.027, 0.588, 0.69, 0.6? (a) 0.027 (b) 0.588 (c) 0.69 (d) 0.6
  8. 8.What is the value of the digit 6 in 41.675? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  9. 9.Which is the smallest: 0.014, 0.7, 0.78, 0.645? (a) 0.014 (b) 0.7 (c) 0.78 (d) 0.645
  10. 10.Which is the greatest: 0.035, 0.21, 0.2, 0.127? (a) 0.035 (b) 0.21 (c) 0.2 (d) 0.127
  11. 11.What is the value of the digit 7 in 84.327? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  12. 12.8.96 + 8.1 = ? (a) 17.16 (b) 17.06 (c) 9.77 (d) 16.96
  13. 13.6.13 + 6.6 = ? (a) 6.79 (b) 12.83 (c) 12.73 (d) 12.63
  14. 14.Which is the smallest: 0.8, 0.777, 0.88, 0.082? (a) 0.8 (b) 0.777 (c) 0.88 (d) 0.082
  15. 15.What is the value of the digit 7 in 78.516? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  16. 16.Which is the greatest: 0.126, 0.23, 0.069, 0.2? (a) 0.126 (b) 0.23 (c) 0.069 (d) 0.2
  17. 17.3.82 + 4.1 = ? (a) 4.23 (b) 7.82 (c) 8.02 (d) 7.92
  18. 18.What is the value of the digit 3 in 32.945? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  19. 19.What is the value of the digit 4 in 27.948? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  20. 20.What is the value of the digit 8 in 81.439? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  21. 21.Which is the smallest: 0.618, 0.069, 0.74, 0.7? (a) 0.618 (b) 0.069 (c) 0.74 (d) 0.7
  22. 22.What is the value of the digit 7 in 71.862? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  23. 23.Which is the smallest: 0.025, 0.76, 0.695, 0.7? (a) 0.025 (b) 0.76 (c) 0.695 (d) 0.7
  24. 24.Which is the greatest: 0.43, 0.067, 0.341, 0.4? (a) 0.43 (b) 0.067 (c) 0.341 (d) 0.4
  25. 25.Which is the smallest: 0.51, 0.455, 0.016, 0.5? (a) 0.51 (b) 0.455 (c) 0.016 (d) 0.5
  26. 26.What is the value of the digit 4 in 84.695? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  27. 27.Which is the greatest: 0.44, 0.4, 0.348, 0.072? (a) 0.44 (b) 0.4 (c) 0.348 (d) 0.072
  28. 28.What is the value of the digit 4 in 41.329? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  29. 29.Which is the smallest: 0.7, 0.634, 0.088, 0.72? (a) 0.7 (b) 0.634 (c) 0.088 (d) 0.72
  30. 30.Which is the smallest: 0.175, 0.2, 0.28, 0.061? (a) 0.175 (b) 0.2 (c) 0.28 (d) 0.061
  31. 31.7.91 + 1.1 = ? (a) 9.11 (b) 9.01 (c) 8.02 (d) 8.91
  32. 32.What is the value of the digit 6 in 14.862? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  33. 33.3.02 + 9.9 = ? (a) 12.82 (b) 4.01 (c) 13.02 (d) 12.92
  34. 34.What is the value of the digit 8 in 28.475? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  35. 35.What is the value of the digit 7 in 72.165? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  36. 36.What is the value of the digit 7 in 47.286? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  37. 37.Which is the smallest: 0.259, 0.023, 0.3, 0.35? (a) 0.259 (b) 0.023 (c) 0.3 (d) 0.35
  38. 38.Which is the smallest: 0.6, 0.63, 0.084, 0.571? (a) 0.6 (b) 0.63 (c) 0.084 (d) 0.571
  39. 39.What is the value of the digit 2 in 57.982? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  40. 40.What is the value of the digit 3 in 63.512? (a) 30 (b) 0.3 (c) 0.03 (d) 3

Answer key

  1. 12.12
  2. 0.014
  3. 0.53
  4. 0.2
  5. 10.41
  6. 0.57
  7. 0.69
  8. 0.6
  9. 0.014
  10. 0.21
  11. 0.007
  12. 17.06
  13. 12.73
  14. 0.082
  15. 70
  16. 0.23
  17. 7.92
  18. 30
  19. 0.04
  20. 80
  21. 0.069
  22. 70
  23. 0.025
  24. 0.43
  25. 0.016
  26. 4
  27. 0.44
  28. 40
  29. 0.088
  30. 0.061
  31. 9.01
  32. 0.06
  33. 12.92
  34. 8
  35. 70
  36. 7
  37. 0.023
  38. 0.084
  39. 0.002
  40. 3

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