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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 891 · 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 3 in 48.173? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  2. 2.What is the value of the digit 2 in 31.425? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  3. 3.2.54 + 4.1 = ? (a) 2.95 (b) 6.64 (c) 6.54 (d) 6.74
  4. 4.8.49 + 3.1 = ? (a) 11.69 (b) 11.49 (c) 8.8 (d) 11.59
  5. 5.What is the value of the digit 6 in 83.641? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  6. 6.What is the value of the digit 5 in 35.281? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  7. 7.Which is the smallest: 0.527, 0.61, 0.031, 0.6? (a) 0.527 (b) 0.61 (c) 0.031 (d) 0.6
  8. 8.3.43 + 6.8 = ? (a) 10.33 (b) 10.13 (c) 4.11 (d) 10.23
  9. 9.Which is the greatest: 0.161, 0.25, 0.057, 0.2? (a) 0.161 (b) 0.25 (c) 0.057 (d) 0.2
  10. 10.Which is the greatest: 0.235, 0.39, 0.3, 0.044? (a) 0.235 (b) 0.39 (c) 0.3 (d) 0.044
  11. 11.Which is the greatest: 0.2, 0.017, 0.171, 0.25? (a) 0.2 (b) 0.017 (c) 0.171 (d) 0.25
  12. 12.What is the value of the digit 7 in 29.761? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  13. 13.2.48 + 1.4 = ? (a) 3.98 (b) 3.88 (c) 3.78 (d) 2.62
  14. 14.2.24 + 3.4 = ? (a) 2.58 (b) 5.54 (c) 5.74 (d) 5.64
  15. 15.6.84 + 2.7 = ? (a) 7.11 (b) 9.54 (c) 9.44 (d) 9.64
  16. 16.1.81 + 1.5 = ? (a) 1.96 (b) 3.41 (c) 3.31 (d) 3.21
  17. 17.Which is the greatest: 0.238, 0.37, 0.028, 0.3? (a) 0.238 (b) 0.37 (c) 0.028 (d) 0.3
  18. 18.What is the value of the digit 5 in 24.865? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  19. 19.2.34 + 7.3 = ? (a) 9.74 (b) 3.07 (c) 9.54 (d) 9.64
  20. 20.What is the value of the digit 7 in 87.912? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  21. 21.2.15 + 2.1 = ? (a) 4.25 (b) 4.15 (c) 2.36 (d) 4.35
  22. 22.1.63 + 7.4 = ? (a) 9.13 (b) 8.93 (c) 2.37 (d) 9.03
  23. 23.7.31 + 8.5 = ? (a) 15.91 (b) 15.81 (c) 15.71 (d) 8.16
  24. 24.Which is the greatest: 0.77, 0.7, 0.013, 0.699? (a) 0.77 (b) 0.7 (c) 0.013 (d) 0.699
  25. 25.2.53 + 2.1 = ? (a) 4.73 (b) 2.74 (c) 4.63 (d) 4.53
  26. 26.8.67 + 5.2 = ? (a) 13.87 (b) 13.77 (c) 13.97 (d) 9.19
  27. 27.Which is the greatest: 0.623, 0.73, 0.027, 0.7? (a) 0.623 (b) 0.73 (c) 0.027 (d) 0.7
  28. 28.5.41 + 8.8 = ? (a) 14.31 (b) 14.21 (c) 6.29 (d) 14.11
  29. 29.What is the value of the digit 6 in 86.971? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  30. 30.1.31 + 2.5 = ? (a) 3.81 (b) 3.91 (c) 3.71 (d) 1.56
  31. 31.What is the value of the digit 6 in 26.491? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  32. 32.What is the value of the digit 8 in 18.259? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  33. 33.What is the value of the digit 9 in 93.428? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  34. 34.7.35 + 3.6 = ? (a) 11.05 (b) 10.85 (c) 7.71 (d) 10.95
  35. 35.What is the value of the digit 7 in 71.346? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  36. 36.What is the value of the digit 5 in 59.781? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  37. 37.What is the value of the digit 9 in 96.258? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  38. 38.2.25 + 2.9 = ? (a) 5.25 (b) 5.15 (c) 5.05 (d) 2.54
  39. 39.8.22 + 7.4 = ? (a) 15.72 (b) 8.96 (c) 15.62 (d) 15.52
  40. 40.Which is the greatest: 0.7, 0.056, 0.75, 0.636? (a) 0.7 (b) 0.056 (c) 0.75 (d) 0.636

Answer key

  1. 0.003
  2. 0.02
  3. 6.64
  4. 11.59
  5. 0.6
  6. 5
  7. 0.031
  8. 10.23
  9. 0.25
  10. 0.39
  11. 0.25
  12. 0.7
  13. 3.88
  14. 5.64
  15. 9.54
  16. 3.31
  17. 0.37
  18. 0.005
  19. 9.64
  20. 7
  21. 4.25
  22. 9.03
  23. 15.81
  24. 0.77
  25. 4.63
  26. 13.87
  27. 0.73
  28. 14.21
  29. 6
  30. 3.81
  31. 6
  32. 8
  33. 90
  34. 10.95
  35. 70
  36. 50
  37. 90
  38. 5.15
  39. 15.62
  40. 0.75

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