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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 379 · 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 9 in 31.987? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  2. 2.What is the value of the digit 4 in 45.812? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  3. 3.Which is the smallest: 0.782, 0.025, 0.81, 0.8? (a) 0.782 (b) 0.025 (c) 0.81 (d) 0.8
  4. 4.6.05 + 4.9 = ? (a) 10.95 (b) 10.85 (c) 6.54 (d) 11.05
  5. 5.3.57 + 5.6 = ? (a) 9.27 (b) 4.13 (c) 9.17 (d) 9.07
  6. 6.Which is the greatest: 0.085, 0.138, 0.21, 0.2? (a) 0.085 (b) 0.138 (c) 0.21 (d) 0.2
  7. 7.8.15 + 1.7 = ? (a) 9.85 (b) 9.95 (c) 9.75 (d) 8.32
  8. 8.What is the value of the digit 1 in 86.154? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  9. 9.What is the value of the digit 1 in 41.263? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  10. 10.6.81 + 5.1 = ? (a) 11.81 (b) 11.91 (c) 7.32 (d) 12.01
  11. 11.Which is the greatest: 0.49, 0.4, 0.096, 0.369? (a) 0.49 (b) 0.4 (c) 0.096 (d) 0.369
  12. 12.What is the value of the digit 4 in 47.923? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  13. 13.What is the value of the digit 8 in 76.948? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  14. 14.1.55 + 3.2 = ? (a) 4.85 (b) 4.65 (c) 4.75 (d) 1.87
  15. 15.Which is the smallest: 0.432, 0.58, 0.012, 0.5? (a) 0.432 (b) 0.58 (c) 0.012 (d) 0.5
  16. 16.4.37 + 3.7 = ? (a) 4.74 (b) 7.97 (c) 8.17 (d) 8.07
  17. 17.What is the value of the digit 8 in 16.328? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  18. 18.1.94 + 1.2 = ? (a) 3.14 (b) 3.24 (c) 3.04 (d) 2.06
  19. 19.9.34 + 6.9 = ? (a) 16.34 (b) 10.03 (c) 16.24 (d) 16.14
  20. 20.7.53 + 2.1 = ? (a) 9.73 (b) 9.53 (c) 9.63 (d) 7.74
  21. 21.Which is the smallest: 0.7, 0.048, 0.79, 0.619? (a) 0.7 (b) 0.048 (c) 0.79 (d) 0.619
  22. 22.Which is the greatest: 0.352, 0.4, 0.044, 0.42? (a) 0.352 (b) 0.4 (c) 0.044 (d) 0.42
  23. 23.Which is the greatest: 0.722, 0.041, 0.89, 0.8? (a) 0.722 (b) 0.041 (c) 0.89 (d) 0.8
  24. 24.3.56 + 1.1 = ? (a) 4.76 (b) 4.56 (c) 3.67 (d) 4.66
  25. 25.2.12 + 9.2 = ? (a) 11.22 (b) 11.42 (c) 3.04 (d) 11.32
  26. 26.1.16 + 6.1 = ? (a) 7.26 (b) 1.77 (c) 7.16 (d) 7.36
  27. 27.7.25 + 4.7 = ? (a) 11.85 (b) 12.05 (c) 11.95 (d) 7.72
  28. 28.Which is the smallest: 0.438, 0.57, 0.5, 0.047? (a) 0.438 (b) 0.57 (c) 0.5 (d) 0.047
  29. 29.3.73 + 8.7 = ? (a) 12.33 (b) 12.43 (c) 4.6 (d) 12.53
  30. 30.9.73 + 9.9 = ? (a) 10.72 (b) 19.73 (c) 19.63 (d) 19.53
  31. 31.1.54 + 9.5 = ? (a) 2.49 (b) 11.14 (c) 10.94 (d) 11.04
  32. 32.What is the value of the digit 8 in 72.185? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  33. 33.Which is the smallest: 0.021, 0.47, 0.4, 0.383? (a) 0.021 (b) 0.47 (c) 0.4 (d) 0.383
  34. 34.Which is the smallest: 0.31, 0.013, 0.224, 0.3? (a) 0.31 (b) 0.013 (c) 0.224 (d) 0.3
  35. 35.5.41 + 8.5 = ? (a) 13.91 (b) 14.01 (c) 13.81 (d) 6.26
  36. 36.What is the value of the digit 3 in 69.213? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  37. 37.What is the value of the digit 2 in 16.324? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  38. 38.What is the value of the digit 1 in 49.153? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  39. 39.What is the value of the digit 6 in 38.956? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  40. 40.Which is the smallest: 0.5, 0.57, 0.094, 0.459? (a) 0.5 (b) 0.57 (c) 0.094 (d) 0.459

Answer key

  1. 0.9
  2. 40
  3. 0.025
  4. 10.95
  5. 9.17
  6. 0.21
  7. 9.85
  8. 0.1
  9. 1
  10. 11.91
  11. 0.49
  12. 40
  13. 0.008
  14. 4.75
  15. 0.012
  16. 8.07
  17. 0.008
  18. 3.14
  19. 16.24
  20. 9.63
  21. 0.048
  22. 0.42
  23. 0.89
  24. 4.66
  25. 11.32
  26. 7.26
  27. 11.95
  28. 0.047
  29. 12.43
  30. 19.63
  31. 11.04
  32. 0.08
  33. 0.021
  34. 0.013
  35. 13.91
  36. 0.003
  37. 0.02
  38. 0.1
  39. 0.006
  40. 0.094

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