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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 377 · 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 5 in 86.513? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  2. 2.3.31 + 6.7 = ? (a) 10.01 (b) 10.11 (c) 3.98 (d) 9.91
  3. 3.What is the value of the digit 9 in 96.485? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  4. 4.Which is the greatest: 0.031, 0.85, 0.799, 0.8? (a) 0.031 (b) 0.85 (c) 0.799 (d) 0.8
  5. 5.3.12 + 9.9 = ? (a) 12.92 (b) 4.11 (c) 13.02 (d) 13.12
  6. 6.Which is the smallest: 0.042, 0.73, 0.7, 0.691? (a) 0.042 (b) 0.73 (c) 0.7 (d) 0.691
  7. 7.9.01 + 2.4 = ? (a) 11.51 (b) 11.31 (c) 11.41 (d) 9.25
  8. 8.What is the value of the digit 3 in 82.513? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  9. 9.1.73 + 4.4 = ? (a) 6.23 (b) 2.17 (c) 6.03 (d) 6.13
  10. 10.3.12 + 4.6 = ? (a) 3.58 (b) 7.62 (c) 7.72 (d) 7.82
  11. 11.2.02 + 9.8 = ? (a) 11.72 (b) 11.92 (c) 11.82 (d) 3
  12. 12.Which is the greatest: 0.096, 0.61, 0.6, 0.521? (a) 0.096 (b) 0.61 (c) 0.6 (d) 0.521
  13. 13.3.74 + 7.3 = ? (a) 11.14 (b) 11.04 (c) 4.47 (d) 10.94
  14. 14.Which is the greatest: 0.67, 0.6, 0.081, 0.516? (a) 0.67 (b) 0.6 (c) 0.081 (d) 0.516
  15. 15.What is the value of the digit 4 in 19.247? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  16. 16.Which is the greatest: 0.698, 0.7, 0.79, 0.088? (a) 0.698 (b) 0.7 (c) 0.79 (d) 0.088
  17. 17.8.97 + 1.2 = ? (a) 9.09 (b) 10.27 (c) 10.07 (d) 10.17
  18. 18.What is the value of the digit 1 in 17.258? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  19. 19.What is the value of the digit 1 in 16.385? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  20. 20.7.98 + 8.3 = ? (a) 16.38 (b) 16.28 (c) 8.81 (d) 16.18
  21. 21.Which is the smallest: 0.32, 0.246, 0.039, 0.3? (a) 0.32 (b) 0.246 (c) 0.039 (d) 0.3
  22. 22.Which is the smallest: 0.011, 0.22, 0.114, 0.2? (a) 0.011 (b) 0.22 (c) 0.114 (d) 0.2
  23. 23.Which is the greatest: 0.45, 0.355, 0.4, 0.056? (a) 0.45 (b) 0.355 (c) 0.4 (d) 0.056
  24. 24.What is the value of the digit 2 in 28.371? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  25. 25.What is the value of the digit 9 in 81.934? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  26. 26.1.92 + 6.9 = ? (a) 2.61 (b) 8.72 (c) 8.82 (d) 8.92
  27. 27.What is the value of the digit 9 in 96.853? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  28. 28.What is the value of the digit 9 in 95.827? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  29. 29.Which is the greatest: 0.687, 0.7, 0.064, 0.76? (a) 0.687 (b) 0.7 (c) 0.064 (d) 0.76
  30. 30.What is the value of the digit 2 in 15.928? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  31. 31.7.02 + 4.9 = ? (a) 12.02 (b) 11.92 (c) 11.82 (d) 7.51
  32. 32.What is the value of the digit 5 in 73.546? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  33. 33.What is the value of the digit 5 in 53.867? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  34. 34.9.55 + 2.1 = ? (a) 11.75 (b) 9.76 (c) 11.65 (d) 11.55
  35. 35.What is the value of the digit 7 in 64.751? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  36. 36.Which is the smallest: 0.7, 0.75, 0.062, 0.617? (a) 0.7 (b) 0.75 (c) 0.062 (d) 0.617
  37. 37.Which is the smallest: 0.8, 0.794, 0.85, 0.052? (a) 0.8 (b) 0.794 (c) 0.85 (d) 0.052
  38. 38.Which is the smallest: 0.079, 0.47, 0.4, 0.357? (a) 0.079 (b) 0.47 (c) 0.4 (d) 0.357
  39. 39.2.62 + 5.3 = ? (a) 7.82 (b) 7.92 (c) 3.15 (d) 8.02
  40. 40.What is the value of the digit 8 in 35.687? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008

Answer key

  1. 0.5
  2. 10.01
  3. 90
  4. 0.85
  5. 13.02
  6. 0.042
  7. 11.41
  8. 0.003
  9. 6.13
  10. 7.72
  11. 11.82
  12. 0.61
  13. 11.04
  14. 0.67
  15. 0.04
  16. 0.79
  17. 10.17
  18. 10
  19. 10
  20. 16.28
  21. 0.039
  22. 0.011
  23. 0.45
  24. 20
  25. 0.9
  26. 8.82
  27. 90
  28. 90
  29. 0.76
  30. 0.02
  31. 11.92
  32. 0.5
  33. 50
  34. 11.65
  35. 0.7
  36. 0.062
  37. 0.052
  38. 0.079
  39. 7.92
  40. 0.08

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