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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 936 · 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: 0.039, 0.6, 0.66, 0.566? (a) 0.039 (b) 0.6 (c) 0.66 (d) 0.566
  2. 2.What is the value of the digit 7 in 87.913? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  3. 3.1.72 + 9.7 = ? (a) 11.52 (b) 2.69 (c) 11.32 (d) 11.42
  4. 4.4.76 + 5.7 = ? (a) 10.56 (b) 10.36 (c) 10.46 (d) 5.33
  5. 5.8.96 + 8.8 = ? (a) 17.66 (b) 17.86 (c) 17.76 (d) 9.84
  6. 6.What is the value of the digit 9 in 59.673? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  7. 7.What is the value of the digit 6 in 13.684? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  8. 8.What is the value of the digit 2 in 28.749? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  9. 9.9.63 + 2.2 = ? (a) 11.83 (b) 11.93 (c) 11.73 (d) 9.85
  10. 10.What is the value of the digit 7 in 54.273? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  11. 11.What is the value of the digit 3 in 91.382? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  12. 12.3.27 + 8.6 = ? (a) 4.13 (b) 11.87 (c) 11.97 (d) 11.77
  13. 13.6.83 + 5.9 = ? (a) 12.73 (b) 7.42 (c) 12.63 (d) 12.83
  14. 14.What is the value of the digit 2 in 62.874? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  15. 15.2.31 + 7.7 = ? (a) 3.08 (b) 10.11 (c) 10.01 (d) 9.91
  16. 16.What is the value of the digit 7 in 21.937? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  17. 17.Which is the smallest: 0.771, 0.8, 0.85, 0.033? (a) 0.771 (b) 0.8 (c) 0.85 (d) 0.033
  18. 18.5.03 + 6.2 = ? (a) 11.13 (b) 5.65 (c) 11.33 (d) 11.23
  19. 19.Which is the smallest: 0.057, 0.41, 0.4, 0.393? (a) 0.057 (b) 0.41 (c) 0.4 (d) 0.393
  20. 20.Which is the smallest: 0.014, 0.31, 0.212, 0.3? (a) 0.014 (b) 0.31 (c) 0.212 (d) 0.3
  21. 21.8.43 + 4.2 = ? (a) 12.63 (b) 8.85 (c) 12.73 (d) 12.53
  22. 22.What is the value of the digit 6 in 62.397? (a) 6 (b) 0.6 (c) 60 (d) 0.06
  23. 23.Which is the greatest: 0.648, 0.054, 0.77, 0.7? (a) 0.648 (b) 0.054 (c) 0.77 (d) 0.7
  24. 24.Which is the greatest: 0.045, 0.57, 0.5, 0.476? (a) 0.045 (b) 0.57 (c) 0.5 (d) 0.476
  25. 25.7.45 + 8.1 = ? (a) 8.26 (b) 15.65 (c) 15.55 (d) 15.45
  26. 26.Which is the greatest: 0.69, 0.078, 0.6, 0.559? (a) 0.69 (b) 0.078 (c) 0.6 (d) 0.559
  27. 27.9.75 + 6.4 = ? (a) 16.15 (b) 16.05 (c) 10.39 (d) 16.25
  28. 28.Which is the greatest: 0.071, 0.45, 0.4, 0.334? (a) 0.071 (b) 0.45 (c) 0.4 (d) 0.334
  29. 29.6.82 + 2.8 = ? (a) 9.62 (b) 7.1 (c) 9.52 (d) 9.72
  30. 30.What is the value of the digit 1 in 15.293? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  31. 31.6.61 + 1.4 = ? (a) 7.91 (b) 8.01 (c) 6.75 (d) 8.11
  32. 32.Which is the smallest: 0.049, 0.574, 0.62, 0.6? (a) 0.049 (b) 0.574 (c) 0.62 (d) 0.6
  33. 33.What is the value of the digit 8 in 87.362? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  34. 34.9.39 + 2.3 = ? (a) 11.79 (b) 9.62 (c) 11.69 (d) 11.59
  35. 35.What is the value of the digit 6 in 56.429? (a) 6 (b) 0.6 (c) 60 (d) 0.06
  36. 36.Which is the greatest: 0.2, 0.052, 0.25, 0.137? (a) 0.2 (b) 0.052 (c) 0.25 (d) 0.137
  37. 37.5.14 + 6.5 = ? (a) 5.79 (b) 11.74 (c) 11.64 (d) 11.54
  38. 38.Which is the greatest: 0.019, 0.45, 0.379, 0.4? (a) 0.019 (b) 0.45 (c) 0.379 (d) 0.4
  39. 39.What is the value of the digit 8 in 35.698? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  40. 40.What is the value of the digit 6 in 65.314? (a) 0.06 (b) 60 (c) 6 (d) 0.6

Answer key

  1. 0.66
  2. 7
  3. 11.42
  4. 10.46
  5. 17.76
  6. 9
  7. 0.6
  8. 20
  9. 11.83
  10. 0.07
  11. 0.3
  12. 11.87
  13. 12.73
  14. 2
  15. 10.01
  16. 0.007
  17. 0.033
  18. 11.23
  19. 0.057
  20. 0.014
  21. 12.63
  22. 60
  23. 0.77
  24. 0.57
  25. 15.55
  26. 0.69
  27. 16.15
  28. 0.45
  29. 9.62
  30. 10
  31. 8.01
  32. 0.049
  33. 80
  34. 11.69
  35. 6
  36. 0.25
  37. 11.64
  38. 0.45
  39. 0.008
  40. 60

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