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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 972 · 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. 1.1.71 + 4.2 = ? (a) 5.81 (b) 5.91 (c) 2.13 (d) 6.01
  2. 2.Which is the smallest: 0.748, 0.054, 0.85, 0.8? (a) 0.748 (b) 0.054 (c) 0.85 (d) 0.8
  3. 3.Which is the greatest: 0.059, 0.48, 0.4, 0.394? (a) 0.059 (b) 0.48 (c) 0.4 (d) 0.394
  4. 4.What is the value of the digit 3 in 38.472? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  5. 5.Which is the smallest: 0.778, 0.014, 0.8, 0.88? (a) 0.778 (b) 0.014 (c) 0.8 (d) 0.88
  6. 6.What is the value of the digit 2 in 27.548? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  7. 7.What is the value of the digit 2 in 39.258? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  8. 8.Which is the greatest: 0.039, 0.84, 0.775, 0.8? (a) 0.039 (b) 0.84 (c) 0.775 (d) 0.8
  9. 9.2.01 + 6.4 = ? (a) 8.41 (b) 8.31 (c) 2.65 (d) 8.51
  10. 10.What is the value of the digit 4 in 42.918? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  11. 11.4.67 + 6.7 = ? (a) 11.37 (b) 11.27 (c) 5.34 (d) 11.47
  12. 12.What is the value of the digit 8 in 81.237? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  13. 13.7.09 + 2.4 = ? (a) 9.49 (b) 9.39 (c) 7.33 (d) 9.59
  14. 14.What is the value of the digit 1 in 17.532? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  15. 15.5.52 + 1.2 = ? (a) 6.82 (b) 5.64 (c) 6.72 (d) 6.62
  16. 16.Which is the greatest: 0.5, 0.085, 0.56, 0.448? (a) 0.5 (b) 0.085 (c) 0.56 (d) 0.448
  17. 17.What is the value of the digit 6 in 74.269? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  18. 18.7.49 + 6.7 = ? (a) 14.09 (b) 14.29 (c) 8.16 (d) 14.19
  19. 19.What is the value of the digit 1 in 19.238? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  20. 20.What is the value of the digit 7 in 52.671? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  21. 21.8.49 + 3.2 = ? (a) 11.59 (b) 11.79 (c) 11.69 (d) 8.81
  22. 22.What is the value of the digit 2 in 59.132? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  23. 23.Which is the smallest: 0.33, 0.292, 0.058, 0.3? (a) 0.33 (b) 0.292 (c) 0.058 (d) 0.3
  24. 24.What is the value of the digit 2 in 82.531? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  25. 25.3.63 + 6.8 = ? (a) 4.31 (b) 10.53 (c) 10.33 (d) 10.43
  26. 26.1.47 + 6.8 = ? (a) 8.17 (b) 8.27 (c) 2.15 (d) 8.37
  27. 27.9.23 + 5.1 = ? (a) 14.23 (b) 14.43 (c) 9.74 (d) 14.33
  28. 28.5.03 + 9.6 = ? (a) 5.99 (b) 14.63 (c) 14.73 (d) 14.53
  29. 29.9.23 + 3.6 = ? (a) 12.73 (b) 12.93 (c) 12.83 (d) 9.59
  30. 30.Which is the smallest: 0.31, 0.085, 0.224, 0.3? (a) 0.31 (b) 0.085 (c) 0.224 (d) 0.3
  31. 31.2.76 + 3.2 = ? (a) 3.08 (b) 6.06 (c) 5.86 (d) 5.96
  32. 32.8.74 + 4.5 = ? (a) 13.14 (b) 13.34 (c) 9.19 (d) 13.24
  33. 33.Which is the smallest: 0.2, 0.173, 0.055, 0.23? (a) 0.2 (b) 0.173 (c) 0.055 (d) 0.23
  34. 34.8.55 + 2.6 = ? (a) 11.05 (b) 8.81 (c) 11.15 (d) 11.25
  35. 35.8.31 + 9.5 = ? (a) 17.71 (b) 9.26 (c) 17.91 (d) 17.81
  36. 36.What is the value of the digit 5 in 15.274? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  37. 37.Which is the smallest: 0.88, 0.733, 0.8, 0.067? (a) 0.88 (b) 0.733 (c) 0.8 (d) 0.067
  38. 38.9.26 + 9.3 = ? (a) 18.66 (b) 10.19 (c) 18.46 (d) 18.56
  39. 39.Which is the smallest: 0.052, 0.748, 0.81, 0.8? (a) 0.052 (b) 0.748 (c) 0.81 (d) 0.8
  40. 40.What is the value of the digit 2 in 28.514? (a) 2 (b) 0.02 (c) 0.2 (d) 20

Answer key

  1. 5.91
  2. 0.054
  3. 0.48
  4. 30
  5. 0.014
  6. 20
  7. 0.2
  8. 0.84
  9. 8.41
  10. 40
  11. 11.37
  12. 80
  13. 9.49
  14. 10
  15. 6.72
  16. 0.56
  17. 0.06
  18. 14.19
  19. 10
  20. 0.07
  21. 11.69
  22. 0.002
  23. 0.058
  24. 2
  25. 10.43
  26. 8.27
  27. 14.33
  28. 14.63
  29. 12.83
  30. 0.085
  31. 5.96
  32. 13.24
  33. 0.055
  34. 11.15
  35. 17.81
  36. 5
  37. 0.067
  38. 18.56
  39. 0.052
  40. 20

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