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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 183 · 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 3 in 97.143? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  2. 2.2.48 + 7.9 = ? (a) 10.48 (b) 10.28 (c) 10.38 (d) 3.27
  3. 3.What is the value of the digit 4 in 27.145? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  4. 4.6.62 + 5.1 = ? (a) 11.62 (b) 11.82 (c) 11.72 (d) 7.13
  5. 5.What is the value of the digit 5 in 56.732? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  6. 6.Which is the greatest: 0.036, 0.37, 0.3, 0.221? (a) 0.036 (b) 0.37 (c) 0.3 (d) 0.221
  7. 7.9.27 + 5.9 = ? (a) 9.86 (b) 15.17 (c) 15.07 (d) 15.27
  8. 8.3.55 + 2.3 = ? (a) 3.78 (b) 5.95 (c) 5.75 (d) 5.85
  9. 9.What is the value of the digit 6 in 86.472? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  10. 10.6.68 + 8.6 = ? (a) 15.38 (b) 15.28 (c) 7.54 (d) 15.18
  11. 11.5.04 + 7.3 = ? (a) 5.77 (b) 12.44 (c) 12.24 (d) 12.34
  12. 12.What is the value of the digit 3 in 79.463? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  13. 13.Which is the greatest: 0.34, 0.077, 0.291, 0.3? (a) 0.34 (b) 0.077 (c) 0.291 (d) 0.3
  14. 14.Which is the greatest: 0.075, 0.789, 0.8, 0.88? (a) 0.075 (b) 0.789 (c) 0.8 (d) 0.88
  15. 15.Which is the greatest: 0.68, 0.076, 0.532, 0.6? (a) 0.68 (b) 0.076 (c) 0.532 (d) 0.6
  16. 16.4.46 + 2.1 = ? (a) 6.56 (b) 6.66 (c) 4.67 (d) 6.46
  17. 17.What is the value of the digit 4 in 41.329? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  18. 18.Which is the smallest: 0.251, 0.069, 0.33, 0.3? (a) 0.251 (b) 0.069 (c) 0.33 (d) 0.3
  19. 19.3.34 + 8.9 = ? (a) 12.34 (b) 4.23 (c) 12.24 (d) 12.14
  20. 20.Which is the smallest: 0.28, 0.2, 0.191, 0.038? (a) 0.28 (b) 0.2 (c) 0.191 (d) 0.038
  21. 21.What is the value of the digit 6 in 26.854? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  22. 22.Which is the greatest: 0.339, 0.42, 0.024, 0.4? (a) 0.339 (b) 0.42 (c) 0.024 (d) 0.4
  23. 23.9.21 + 4.2 = ? (a) 13.51 (b) 9.63 (c) 13.41 (d) 13.31
  24. 24.What is the value of the digit 2 in 68.452? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  25. 25.Which is the smallest: 0.6, 0.65, 0.025, 0.535? (a) 0.6 (b) 0.65 (c) 0.025 (d) 0.535
  26. 26.What is the value of the digit 5 in 37.541? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  27. 27.Which is the smallest: 0.026, 0.695, 0.7, 0.71? (a) 0.026 (b) 0.695 (c) 0.7 (d) 0.71
  28. 28.What is the value of the digit 6 in 23.986? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  29. 29.What is the value of the digit 7 in 63.572? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  30. 30.9.73 + 1.8 = ? (a) 11.43 (b) 11.63 (c) 11.53 (d) 9.91
  31. 31.Which is the greatest: 0.629, 0.75, 0.7, 0.032? (a) 0.629 (b) 0.75 (c) 0.7 (d) 0.032
  32. 32.What is the value of the digit 1 in 75.981? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  33. 33.What is the value of the digit 8 in 84.235? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  34. 34.What is the value of the digit 9 in 74.639? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  35. 35.1.45 + 6.4 = ? (a) 7.75 (b) 7.85 (c) 7.95 (d) 2.09
  36. 36.Which is the greatest: 0.051, 0.32, 0.3, 0.219? (a) 0.051 (b) 0.32 (c) 0.3 (d) 0.219
  37. 37.What is the value of the digit 5 in 51.632? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  38. 38.Which is the smallest: 0.071, 0.223, 0.39, 0.3? (a) 0.071 (b) 0.223 (c) 0.39 (d) 0.3
  39. 39.7.53 + 1.2 = ? (a) 7.65 (b) 8.73 (c) 8.83 (d) 8.63
  40. 40.Which is the smallest: 0.78, 0.021, 0.7, 0.667? (a) 0.78 (b) 0.021 (c) 0.7 (d) 0.667

Answer key

  1. 0.003
  2. 10.38
  3. 0.04
  4. 11.72
  5. 50
  6. 0.37
  7. 15.17
  8. 5.85
  9. 6
  10. 15.28
  11. 12.34
  12. 0.003
  13. 0.34
  14. 0.88
  15. 0.68
  16. 6.56
  17. 40
  18. 0.069
  19. 12.24
  20. 0.038
  21. 6
  22. 0.42
  23. 13.41
  24. 0.002
  25. 0.025
  26. 0.5
  27. 0.026
  28. 0.006
  29. 0.07
  30. 11.53
  31. 0.75
  32. 0.001
  33. 80
  34. 0.009
  35. 7.85
  36. 0.32
  37. 50
  38. 0.071
  39. 8.73
  40. 0.021

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