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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 910 · 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.Which is the greatest: 0.022, 0.527, 0.61, 0.6? (a) 0.022 (b) 0.527 (c) 0.61 (d) 0.6
  2. 2.7.64 + 9.8 = ? (a) 8.62 (b) 17.54 (c) 17.34 (d) 17.44
  3. 3.7.27 + 8.6 = ? (a) 15.97 (b) 15.77 (c) 8.13 (d) 15.87
  4. 4.What is the value of the digit 9 in 37.928? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  5. 5.3.01 + 5.8 = ? (a) 8.81 (b) 3.59 (c) 8.71 (d) 8.91
  6. 6.Which is the greatest: 0.79, 0.7, 0.632, 0.076? (a) 0.79 (b) 0.7 (c) 0.632 (d) 0.076
  7. 7.What is the value of the digit 7 in 24.971? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  8. 8.What is the value of the digit 4 in 37.482? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  9. 9.3.27 + 1.1 = ? (a) 4.47 (b) 4.37 (c) 4.27 (d) 3.38
  10. 10.What is the value of the digit 2 in 25.386? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  11. 11.7.37 + 1.4 = ? (a) 8.77 (b) 8.67 (c) 7.51 (d) 8.87
  12. 12.3.22 + 6.7 = ? (a) 9.92 (b) 9.82 (c) 10.02 (d) 3.89
  13. 13.8.86 + 2.5 = ? (a) 11.46 (b) 11.26 (c) 11.36 (d) 9.11
  14. 14.7.02 + 9.1 = ? (a) 7.93 (b) 16.02 (c) 16.22 (d) 16.12
  15. 15.Which is the greatest: 0.056, 0.7, 0.649, 0.75? (a) 0.056 (b) 0.7 (c) 0.649 (d) 0.75
  16. 16.What is the value of the digit 2 in 34.672? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  17. 17.What is the value of the digit 8 in 38.724? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  18. 18.Which is the greatest: 0.221, 0.33, 0.3, 0.019? (a) 0.221 (b) 0.33 (c) 0.3 (d) 0.019
  19. 19.What is the value of the digit 5 in 75.216? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  20. 20.Which is the smallest: 0.48, 0.4, 0.056, 0.386? (a) 0.48 (b) 0.4 (c) 0.056 (d) 0.386
  21. 21.7.53 + 2.1 = ? (a) 7.74 (b) 9.73 (c) 9.63 (d) 9.53
  22. 22.Which is the greatest: 0.354, 0.4, 0.43, 0.061? (a) 0.354 (b) 0.4 (c) 0.43 (d) 0.061
  23. 23.What is the value of the digit 7 in 64.571? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  24. 24.Which is the greatest: 0.7, 0.081, 0.73, 0.667? (a) 0.7 (b) 0.081 (c) 0.73 (d) 0.667
  25. 25.Which is the smallest: 0.042, 0.39, 0.3, 0.278? (a) 0.042 (b) 0.39 (c) 0.3 (d) 0.278
  26. 26.What is the value of the digit 1 in 97.415? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  27. 27.7.11 + 5.9 = ? (a) 12.91 (b) 13.01 (c) 13.11 (d) 7.7
  28. 28.Which is the greatest: 0.41, 0.068, 0.341, 0.4? (a) 0.41 (b) 0.068 (c) 0.341 (d) 0.4
  29. 29.Which is the greatest: 0.271, 0.39, 0.3, 0.079? (a) 0.271 (b) 0.39 (c) 0.3 (d) 0.079
  30. 30.What is the value of the digit 2 in 24.567? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  31. 31.What is the value of the digit 9 in 31.895? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  32. 32.3.63 + 8.6 = ? (a) 4.49 (b) 12.13 (c) 12.23 (d) 12.33
  33. 33.What is the value of the digit 2 in 28.157? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  34. 34.Which is the greatest: 0.8, 0.091, 0.744, 0.88? (a) 0.8 (b) 0.091 (c) 0.744 (d) 0.88
  35. 35.6.27 + 6.3 = ? (a) 6.9 (b) 12.47 (c) 12.57 (d) 12.67
  36. 36.Which is the greatest: 0.37, 0.266, 0.3, 0.071? (a) 0.37 (b) 0.266 (c) 0.3 (d) 0.071
  37. 37.Which is the greatest: 0.341, 0.074, 0.4, 0.42? (a) 0.341 (b) 0.074 (c) 0.4 (d) 0.42
  38. 38.Which is the smallest: 0.781, 0.8, 0.059, 0.87? (a) 0.781 (b) 0.8 (c) 0.059 (d) 0.87
  39. 39.What is the value of the digit 8 in 89.317? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  40. 40.7.57 + 2.1 = ? (a) 7.78 (b) 9.57 (c) 9.67 (d) 9.77

Answer key

  1. 0.61
  2. 17.44
  3. 15.87
  4. 0.9
  5. 8.81
  6. 0.79
  7. 0.07
  8. 0.4
  9. 4.37
  10. 20
  11. 8.77
  12. 9.92
  13. 11.36
  14. 16.12
  15. 0.75
  16. 0.002
  17. 8
  18. 0.33
  19. 5
  20. 0.056
  21. 9.63
  22. 0.43
  23. 0.07
  24. 0.73
  25. 0.042
  26. 0.01
  27. 13.01
  28. 0.41
  29. 0.39
  30. 20
  31. 0.09
  32. 12.23
  33. 20
  34. 0.88
  35. 12.57
  36. 0.37
  37. 0.42
  38. 0.059
  39. 80
  40. 9.67

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