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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 470 · 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: 0.71, 0.632, 0.041, 0.7? (a) 0.71 (b) 0.632 (c) 0.041 (d) 0.7
  2. 2.9.55 + 2.4 = ? (a) 11.95 (b) 11.85 (c) 9.79 (d) 12.05
  3. 3.8.98 + 3.5 = ? (a) 12.48 (b) 12.58 (c) 12.38 (d) 9.33
  4. 4.What is the value of the digit 4 in 59.742? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  5. 5.8.66 + 5.1 = ? (a) 9.17 (b) 13.76 (c) 13.66 (d) 13.86
  6. 6.2.21 + 8.8 = ? (a) 11.11 (b) 10.91 (c) 3.09 (d) 11.01
  7. 7.What is the value of the digit 7 in 83.471? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  8. 8.8.01 + 2.6 = ? (a) 10.61 (b) 10.71 (c) 8.27 (d) 10.51
  9. 9.Which is the smallest: 0.5, 0.071, 0.471, 0.53? (a) 0.5 (b) 0.071 (c) 0.471 (d) 0.53
  10. 10.What is the value of the digit 9 in 62.839? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  11. 11.8.16 + 5.1 = ? (a) 13.16 (b) 13.26 (c) 8.67 (d) 13.36
  12. 12.What is the value of the digit 1 in 62.173? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  13. 13.What is the value of the digit 8 in 98.721? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  14. 14.What is the value of the digit 1 in 57.941? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  15. 15.What is the value of the digit 7 in 68.573? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  16. 16.What is the value of the digit 9 in 93.581? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  17. 17.What is the value of the digit 1 in 78.591? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  18. 18.4.94 + 4.1 = ? (a) 8.94 (b) 9.14 (c) 9.04 (d) 5.35
  19. 19.Which is the smallest: 0.22, 0.192, 0.028, 0.2? (a) 0.22 (b) 0.192 (c) 0.028 (d) 0.2
  20. 20.4.01 + 2.5 = ? (a) 6.41 (b) 4.26 (c) 6.51 (d) 6.61
  21. 21.Which is the greatest: 0.297, 0.041, 0.33, 0.3? (a) 0.297 (b) 0.041 (c) 0.33 (d) 0.3
  22. 22.What is the value of the digit 1 in 35.168? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  23. 23.5.79 + 3.8 = ? (a) 9.59 (b) 6.17 (c) 9.69 (d) 9.49
  24. 24.6.68 + 8.1 = ? (a) 14.88 (b) 14.68 (c) 7.49 (d) 14.78
  25. 25.What is the value of the digit 3 in 21.853? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  26. 26.Which is the smallest: 0.5, 0.015, 0.58, 0.466? (a) 0.5 (b) 0.015 (c) 0.58 (d) 0.466
  27. 27.What is the value of the digit 8 in 46.718? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  28. 28.1.13 + 9.8 = ? (a) 10.83 (b) 2.11 (c) 11.03 (d) 10.93
  29. 29.7.69 + 2.2 = ? (a) 9.99 (b) 9.89 (c) 7.91 (d) 9.79
  30. 30.What is the value of the digit 8 in 86.417? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  31. 31.Which is the greatest: 0.337, 0.017, 0.4, 0.45? (a) 0.337 (b) 0.017 (c) 0.4 (d) 0.45
  32. 32.What is the value of the digit 9 in 56.219? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  33. 33.What is the value of the digit 2 in 74.132? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  34. 34.What is the value of the digit 4 in 54.269? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  35. 35.What is the value of the digit 7 in 47.695? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  36. 36.Which is the greatest: 0.042, 0.34, 0.3, 0.225? (a) 0.042 (b) 0.34 (c) 0.3 (d) 0.225
  37. 37.Which is the greatest: 0.28, 0.049, 0.2, 0.138? (a) 0.28 (b) 0.049 (c) 0.2 (d) 0.138
  38. 38.What is the value of the digit 3 in 31.684? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  39. 39.What is the value of the digit 3 in 32.179? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  40. 40.Which is the greatest: 0.429, 0.5, 0.076, 0.54? (a) 0.429 (b) 0.5 (c) 0.076 (d) 0.54

Answer key

  1. 0.71
  2. 11.95
  3. 12.48
  4. 0.04
  5. 13.76
  6. 11.01
  7. 0.07
  8. 10.61
  9. 0.071
  10. 0.009
  11. 13.26
  12. 0.1
  13. 8
  14. 0.001
  15. 0.07
  16. 90
  17. 0.001
  18. 9.04
  19. 0.028
  20. 6.51
  21. 0.33
  22. 0.1
  23. 9.59
  24. 14.78
  25. 0.003
  26. 0.015
  27. 0.008
  28. 10.93
  29. 9.89
  30. 80
  31. 0.45
  32. 0.009
  33. 0.002
  34. 4
  35. 7
  36. 0.34
  37. 0.28
  38. 30
  39. 30
  40. 0.54

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