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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 581 · 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 42.816? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  2. 2.What is the value of the digit 9 in 93.745? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  3. 3.Which is the smallest: 0.729, 0.8, 0.038, 0.88? (a) 0.729 (b) 0.8 (c) 0.038 (d) 0.88
  4. 4.1.21 + 7.2 = ? (a) 8.41 (b) 8.51 (c) 1.93 (d) 8.31
  5. 5.Which is the greatest: 0.3, 0.34, 0.031, 0.214? (a) 0.3 (b) 0.34 (c) 0.031 (d) 0.214
  6. 6.4.29 + 4.2 = ? (a) 8.59 (b) 4.71 (c) 8.49 (d) 8.39
  7. 7.What is the value of the digit 7 in 23.817? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  8. 8.Which is the greatest: 0.151, 0.2, 0.088, 0.29? (a) 0.151 (b) 0.2 (c) 0.088 (d) 0.29
  9. 9.What is the value of the digit 5 in 59.287? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  10. 10.Which is the smallest: 0.036, 0.72, 0.628, 0.7? (a) 0.036 (b) 0.72 (c) 0.628 (d) 0.7
  11. 11.4.07 + 5.4 = ? (a) 9.47 (b) 9.37 (c) 4.61 (d) 9.57
  12. 12.7.01 + 6.9 = ? (a) 14.01 (b) 7.7 (c) 13.81 (d) 13.91
  13. 13.1.31 + 5.9 = ? (a) 7.11 (b) 7.21 (c) 7.31 (d) 1.9
  14. 14.What is the value of the digit 3 in 14.873? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  15. 15.What is the value of the digit 9 in 75.389? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  16. 16.Which is the smallest: 0.019, 0.249, 0.34, 0.3? (a) 0.019 (b) 0.249 (c) 0.34 (d) 0.3
  17. 17.3.04 + 9.5 = ? (a) 12.44 (b) 12.64 (c) 3.99 (d) 12.54
  18. 18.8.51 + 8.5 = ? (a) 17.11 (b) 16.91 (c) 9.36 (d) 17.01
  19. 19.Which is the greatest: 0.032, 0.44, 0.4, 0.345? (a) 0.032 (b) 0.44 (c) 0.4 (d) 0.345
  20. 20.What is the value of the digit 8 in 71.984? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  21. 21.What is the value of the digit 4 in 43.675? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  22. 22.Which is the greatest: 0.084, 0.8, 0.85, 0.791? (a) 0.084 (b) 0.8 (c) 0.85 (d) 0.791
  23. 23.What is the value of the digit 9 in 95.763? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  24. 24.Which is the smallest: 0.8, 0.86, 0.788, 0.015? (a) 0.8 (b) 0.86 (c) 0.788 (d) 0.015
  25. 25.What is the value of the digit 3 in 63.491? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  26. 26.4.22 + 2.9 = ? (a) 7.02 (b) 7.22 (c) 4.51 (d) 7.12
  27. 27.What is the value of the digit 5 in 56.391? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  28. 28.Which is the greatest: 0.253, 0.3, 0.067, 0.38? (a) 0.253 (b) 0.3 (c) 0.067 (d) 0.38
  29. 29.What is the value of the digit 2 in 32.948? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  30. 30.Which is the greatest: 0.644, 0.7, 0.75, 0.022? (a) 0.644 (b) 0.7 (c) 0.75 (d) 0.022
  31. 31.4.59 + 5.6 = ? (a) 10.29 (b) 5.15 (c) 10.09 (d) 10.19
  32. 32.6.81 + 3.3 = ? (a) 7.14 (b) 10.01 (c) 10.21 (d) 10.11
  33. 33.2.74 + 6.1 = ? (a) 3.35 (b) 8.94 (c) 8.74 (d) 8.84
  34. 34.What is the value of the digit 5 in 35.691? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  35. 35.What is the value of the digit 5 in 64.915? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  36. 36.Which is the smallest: 0.6, 0.072, 0.64, 0.572? (a) 0.6 (b) 0.072 (c) 0.64 (d) 0.572
  37. 37.What is the value of the digit 1 in 63.281? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  38. 38.7.08 + 3.3 = ? (a) 7.41 (b) 10.38 (c) 10.48 (d) 10.28
  39. 39.Which is the greatest: 0.135, 0.071, 0.2, 0.24? (a) 0.135 (b) 0.071 (c) 0.2 (d) 0.24
  40. 40.What is the value of the digit 4 in 42.153? (a) 4 (b) 0.4 (c) 0.04 (d) 40

Answer key

  1. 2
  2. 90
  3. 0.038
  4. 8.41
  5. 0.34
  6. 8.49
  7. 0.007
  8. 0.29
  9. 50
  10. 0.036
  11. 9.47
  12. 13.91
  13. 7.21
  14. 0.003
  15. 0.009
  16. 0.019
  17. 12.54
  18. 17.01
  19. 0.44
  20. 0.08
  21. 40
  22. 0.85
  23. 90
  24. 0.015
  25. 3
  26. 7.12
  27. 50
  28. 0.38
  29. 2
  30. 0.75
  31. 10.19
  32. 10.11
  33. 8.84
  34. 5
  35. 0.005
  36. 0.072
  37. 0.001
  38. 10.38
  39. 0.24
  40. 40

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