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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 552 · 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 94.175? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  2. 2.Which is the smallest: 0.3, 0.055, 0.237, 0.33? (a) 0.3 (b) 0.055 (c) 0.237 (d) 0.33
  3. 3.9.75 + 2.9 = ? (a) 12.65 (b) 10.04 (c) 12.75 (d) 12.55
  4. 4.6.89 + 5.1 = ? (a) 7.4 (b) 11.99 (c) 11.89 (d) 12.09
  5. 5.What is the value of the digit 6 in 63.598? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  6. 6.Which is the greatest: 0.293, 0.37, 0.022, 0.3? (a) 0.293 (b) 0.37 (c) 0.022 (d) 0.3
  7. 7.5.25 + 2.6 = ? (a) 7.75 (b) 7.95 (c) 5.51 (d) 7.85
  8. 8.5.13 + 7.2 = ? (a) 12.33 (b) 12.23 (c) 12.43 (d) 5.85
  9. 9.Which is the smallest: 0.681, 0.74, 0.7, 0.019? (a) 0.681 (b) 0.74 (c) 0.7 (d) 0.019
  10. 10.9.44 + 8.2 = ? (a) 10.26 (b) 17.54 (c) 17.74 (d) 17.64
  11. 11.What is the value of the digit 4 in 13.894? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  12. 12.What is the value of the digit 8 in 31.854? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  13. 13.What is the value of the digit 7 in 81.679? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  14. 14.What is the value of the digit 1 in 34.912? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  15. 15.9.24 + 9.2 = ? (a) 18.44 (b) 18.34 (c) 10.16 (d) 18.54
  16. 16.Which is the smallest: 0.78, 0.013, 0.637, 0.7? (a) 0.78 (b) 0.013 (c) 0.637 (d) 0.7
  17. 17.Which is the smallest: 0.158, 0.2, 0.023, 0.21? (a) 0.158 (b) 0.2 (c) 0.023 (d) 0.21
  18. 18.What is the value of the digit 1 in 92.137? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  19. 19.4.97 + 9.5 = ? (a) 14.47 (b) 14.57 (c) 5.92 (d) 14.37
  20. 20.8.42 + 7.8 = ? (a) 9.2 (b) 16.12 (c) 16.32 (d) 16.22
  21. 21.What is the value of the digit 6 in 52.836? (a) 0.06 (b) 6 (c) 0.6 (d) 0.006
  22. 22.What is the value of the digit 5 in 83.915? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  23. 23.Which is the greatest: 0.5, 0.056, 0.57, 0.437? (a) 0.5 (b) 0.056 (c) 0.57 (d) 0.437
  24. 24.Which is the greatest: 0.041, 0.61, 0.518, 0.6? (a) 0.041 (b) 0.61 (c) 0.518 (d) 0.6
  25. 25.Which is the smallest: 0.7, 0.663, 0.054, 0.71? (a) 0.7 (b) 0.663 (c) 0.054 (d) 0.71
  26. 26.2.91 + 2.1 = ? (a) 4.91 (b) 5.11 (c) 3.12 (d) 5.01
  27. 27.Which is the greatest: 0.075, 0.51, 0.418, 0.5? (a) 0.075 (b) 0.51 (c) 0.418 (d) 0.5
  28. 28.What is the value of the digit 8 in 32.896? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  29. 29.What is the value of the digit 2 in 25.416? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  30. 30.3.02 + 2.1 = ? (a) 5.02 (b) 3.23 (c) 5.12 (d) 5.22
  31. 31.4.38 + 6.6 = ? (a) 5.04 (b) 10.88 (c) 11.08 (d) 10.98
  32. 32.9.71 + 7.1 = ? (a) 16.91 (b) 16.71 (c) 10.42 (d) 16.81
  33. 33.7.63 + 1.2 = ? (a) 7.75 (b) 8.93 (c) 8.73 (d) 8.83
  34. 34.What is the value of the digit 4 in 49.512? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  35. 35.What is the value of the digit 7 in 31.729? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  36. 36.4.91 + 7.1 = ? (a) 5.62 (b) 12.11 (c) 11.91 (d) 12.01
  37. 37.1.16 + 3.3 = ? (a) 1.49 (b) 4.56 (c) 4.36 (d) 4.46
  38. 38.What is the value of the digit 6 in 32.679? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  39. 39.Which is the greatest: 0.46, 0.4, 0.092, 0.314? (a) 0.46 (b) 0.4 (c) 0.092 (d) 0.314
  40. 40.Which is the smallest: 0.632, 0.7, 0.79, 0.083? (a) 0.632 (b) 0.7 (c) 0.79 (d) 0.083

Answer key

  1. 4
  2. 0.055
  3. 12.65
  4. 11.99
  5. 60
  6. 0.37
  7. 7.85
  8. 12.33
  9. 0.019
  10. 17.64
  11. 0.004
  12. 0.8
  13. 0.07
  14. 0.01
  15. 18.44
  16. 0.013
  17. 0.023
  18. 0.1
  19. 14.47
  20. 16.22
  21. 0.006
  22. 0.005
  23. 0.57
  24. 0.61
  25. 0.054
  26. 5.01
  27. 0.51
  28. 0.8
  29. 20
  30. 5.12
  31. 10.98
  32. 16.81
  33. 8.83
  34. 40
  35. 0.7
  36. 12.01
  37. 4.46
  38. 0.6
  39. 0.46
  40. 0.083

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