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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 496 · 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 6 in 61.587? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  2. 2.7.08 + 3.4 = ? (a) 10.48 (b) 10.38 (c) 10.58 (d) 7.42
  3. 3.3.71 + 6.5 = ? (a) 10.31 (b) 4.36 (c) 10.11 (d) 10.21
  4. 4.Which is the greatest: 0.564, 0.6, 0.092, 0.65? (a) 0.564 (b) 0.6 (c) 0.092 (d) 0.65
  5. 5.8.53 + 4.2 = ? (a) 12.83 (b) 12.73 (c) 12.63 (d) 8.95
  6. 6.Which is the greatest: 0.529, 0.082, 0.6, 0.61? (a) 0.529 (b) 0.082 (c) 0.6 (d) 0.61
  7. 7.What is the value of the digit 1 in 19.537? (a) 0.1 (b) 1 (c) 10 (d) 0.01
  8. 8.Which is the smallest: 0.56, 0.056, 0.5, 0.426? (a) 0.56 (b) 0.056 (c) 0.5 (d) 0.426
  9. 9.What is the value of the digit 6 in 17.426? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  10. 10.3.81 + 5.3 = ? (a) 9.11 (b) 9.01 (c) 9.21 (d) 4.34
  11. 11.What is the value of the digit 2 in 12.478? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  12. 12.Which is the greatest: 0.085, 0.393, 0.4, 0.45? (a) 0.085 (b) 0.393 (c) 0.4 (d) 0.45
  13. 13.Which is the greatest: 0.051, 0.8, 0.84, 0.752? (a) 0.051 (b) 0.8 (c) 0.84 (d) 0.752
  14. 14.2.29 + 2.5 = ? (a) 4.69 (b) 2.54 (c) 4.89 (d) 4.79
  15. 15.9.75 + 1.8 = ? (a) 11.55 (b) 11.45 (c) 9.93 (d) 11.65
  16. 16.What is the value of the digit 1 in 12.645? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  17. 17.What is the value of the digit 9 in 16.879? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  18. 18.What is the value of the digit 9 in 15.296? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  19. 19.Which is the smallest: 0.169, 0.2, 0.26, 0.086? (a) 0.169 (b) 0.2 (c) 0.26 (d) 0.086
  20. 20.What is the value of the digit 7 in 35.617? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  21. 21.1.42 + 6.5 = ? (a) 7.92 (b) 7.82 (c) 8.02 (d) 2.07
  22. 22.Which is the smallest: 0.2, 0.24, 0.082, 0.122? (a) 0.2 (b) 0.24 (c) 0.082 (d) 0.122
  23. 23.5.93 + 8.2 = ? (a) 14.03 (b) 6.75 (c) 14.23 (d) 14.13
  24. 24.2.01 + 6.9 = ? (a) 9.01 (b) 8.81 (c) 8.91 (d) 2.7
  25. 25.1.88 + 3.8 = ? (a) 5.58 (b) 2.26 (c) 5.68 (d) 5.78
  26. 26.6.46 + 5.7 = ? (a) 12.06 (b) 12.26 (c) 7.03 (d) 12.16
  27. 27.Which is the smallest: 0.32, 0.068, 0.215, 0.3? (a) 0.32 (b) 0.068 (c) 0.215 (d) 0.3
  28. 28.What is the value of the digit 9 in 89.631? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  29. 29.What is the value of the digit 8 in 48.671? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  30. 30.Which is the smallest: 0.036, 0.387, 0.48, 0.4? (a) 0.036 (b) 0.387 (c) 0.48 (d) 0.4
  31. 31.6.15 + 3.6 = ? (a) 6.51 (b) 9.65 (c) 9.75 (d) 9.85
  32. 32.7.54 + 3.7 = ? (a) 11.34 (b) 7.91 (c) 11.24 (d) 11.14
  33. 33.Which is the greatest: 0.021, 0.2, 0.26, 0.161? (a) 0.021 (b) 0.2 (c) 0.26 (d) 0.161
  34. 34.What is the value of the digit 1 in 61.783? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  35. 35.8.31 + 7.8 = ? (a) 16.01 (b) 16.11 (c) 9.09 (d) 16.21
  36. 36.What is the value of the digit 7 in 97.561? (a) 70 (b) 7 (c) 0.07 (d) 0.7
  37. 37.Which is the greatest: 0.7, 0.76, 0.662, 0.053? (a) 0.7 (b) 0.76 (c) 0.662 (d) 0.053
  38. 38.Which is the greatest: 0.7, 0.025, 0.689, 0.71? (a) 0.7 (b) 0.025 (c) 0.689 (d) 0.71
  39. 39.Which is the greatest: 0.071, 0.81, 0.8, 0.733? (a) 0.071 (b) 0.81 (c) 0.8 (d) 0.733
  40. 40.What is the value of the digit 9 in 32.694? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9

Answer key

  1. 60
  2. 10.48
  3. 10.21
  4. 0.65
  5. 12.73
  6. 0.61
  7. 10
  8. 0.056
  9. 0.006
  10. 9.11
  11. 2
  12. 0.45
  13. 0.84
  14. 4.79
  15. 11.55
  16. 10
  17. 0.009
  18. 0.09
  19. 0.086
  20. 0.007
  21. 7.92
  22. 0.082
  23. 14.13
  24. 8.91
  25. 5.68
  26. 12.16
  27. 0.068
  28. 9
  29. 8
  30. 0.036
  31. 9.75
  32. 11.24
  33. 0.26
  34. 1
  35. 16.11
  36. 7
  37. 0.76
  38. 0.71
  39. 0.81
  40. 0.09

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