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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 409 · 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 4 in 74.391? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  2. 2.What is the value of the digit 6 in 62.817? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  3. 3.What is the value of the digit 9 in 12.849? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  4. 4.9.45 + 9.6 = ? (a) 10.41 (b) 19.05 (c) 19.15 (d) 18.95
  5. 5.9.46 + 7.8 = ? (a) 17.26 (b) 17.36 (c) 10.24 (d) 17.16
  6. 6.What is the value of the digit 3 in 42.358? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  7. 7.Which is the greatest: 0.52, 0.5, 0.412, 0.028? (a) 0.52 (b) 0.5 (c) 0.412 (d) 0.028
  8. 8.Which is the greatest: 0.525, 0.032, 0.69, 0.6? (a) 0.525 (b) 0.032 (c) 0.69 (d) 0.6
  9. 9.2.04 + 3.8 = ? (a) 5.74 (b) 5.94 (c) 2.42 (d) 5.84
  10. 10.What is the value of the digit 2 in 23.195? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  11. 11.1.82 + 1.4 = ? (a) 3.12 (b) 3.22 (c) 1.96 (d) 3.32
  12. 12.What is the value of the digit 2 in 14.972? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  13. 13.3.97 + 3.2 = ? (a) 7.27 (b) 7.07 (c) 4.29 (d) 7.17
  14. 14.Which is the smallest: 0.137, 0.012, 0.25, 0.2? (a) 0.137 (b) 0.012 (c) 0.25 (d) 0.2
  15. 15.1.27 + 1.8 = ? (a) 3.07 (b) 2.97 (c) 3.17 (d) 1.45
  16. 16.What is the value of the digit 3 in 36.421? (a) 0.03 (b) 3 (c) 30 (d) 0.3
  17. 17.8.61 + 3.8 = ? (a) 8.99 (b) 12.41 (c) 12.51 (d) 12.31
  18. 18.7.15 + 2.1 = ? (a) 9.25 (b) 9.15 (c) 7.36 (d) 9.35
  19. 19.Which is the smallest: 0.081, 0.636, 0.74, 0.7? (a) 0.081 (b) 0.636 (c) 0.74 (d) 0.7
  20. 20.Which is the greatest: 0.088, 0.32, 0.289, 0.3? (a) 0.088 (b) 0.32 (c) 0.289 (d) 0.3
  21. 21.What is the value of the digit 6 in 61.273? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  22. 22.Which is the greatest: 0.7, 0.78, 0.617, 0.052? (a) 0.7 (b) 0.78 (c) 0.617 (d) 0.052
  23. 23.What is the value of the digit 4 in 42.573? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  24. 24.What is the value of the digit 4 in 62.483? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  25. 25.5.21 + 6.1 = ? (a) 11.41 (b) 11.21 (c) 5.82 (d) 11.31
  26. 26.6.51 + 4.7 = ? (a) 6.98 (b) 11.11 (c) 11.21 (d) 11.31
  27. 27.7.56 + 6.6 = ? (a) 14.16 (b) 8.22 (c) 14.26 (d) 14.06
  28. 28.Which is the smallest: 0.22, 0.2, 0.076, 0.111? (a) 0.22 (b) 0.2 (c) 0.076 (d) 0.111
  29. 29.4.79 + 2.9 = ? (a) 7.59 (b) 7.79 (c) 5.08 (d) 7.69
  30. 30.What is the value of the digit 9 in 26.914? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  31. 31.What is the value of the digit 5 in 39.856? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  32. 32.8.75 + 6.9 = ? (a) 9.44 (b) 15.55 (c) 15.65 (d) 15.75
  33. 33.What is the value of the digit 1 in 47.186? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  34. 34.9.42 + 5.5 = ? (a) 14.82 (b) 14.92 (c) 15.02 (d) 9.97
  35. 35.Which is the greatest: 0.096, 0.36, 0.232, 0.3? (a) 0.096 (b) 0.36 (c) 0.232 (d) 0.3
  36. 36.8.23 + 1.7 = ? (a) 9.83 (b) 8.4 (c) 10.03 (d) 9.93
  37. 37.7.33 + 4.3 = ? (a) 7.76 (b) 11.53 (c) 11.63 (d) 11.73
  38. 38.What is the value of the digit 6 in 38.276? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  39. 39.7.01 + 3.8 = ? (a) 10.71 (b) 10.91 (c) 10.81 (d) 7.39
  40. 40.Which is the greatest: 0.317, 0.4, 0.088, 0.49? (a) 0.317 (b) 0.4 (c) 0.088 (d) 0.49

Answer key

  1. 4
  2. 60
  3. 0.009
  4. 19.05
  5. 17.26
  6. 0.3
  7. 0.52
  8. 0.69
  9. 5.84
  10. 20
  11. 3.22
  12. 0.002
  13. 7.17
  14. 0.012
  15. 3.07
  16. 30
  17. 12.41
  18. 9.25
  19. 0.081
  20. 0.32
  21. 60
  22. 0.78
  23. 40
  24. 0.4
  25. 11.31
  26. 11.21
  27. 14.16
  28. 0.076
  29. 7.69
  30. 0.9
  31. 0.05
  32. 15.65
  33. 0.1
  34. 14.92
  35. 0.36
  36. 9.93
  37. 11.63
  38. 0.006
  39. 10.81
  40. 0.49

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