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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 987 · 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. 1.9.41 + 9.9 = ? (a) 19.41 (b) 19.31 (c) 19.21 (d) 10.4
  2. 2.What is the value of the digit 9 in 42.981? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  3. 3.What is the value of the digit 1 in 32.518? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  4. 4.Which is the smallest: 0.7, 0.697, 0.045, 0.75? (a) 0.7 (b) 0.697 (c) 0.045 (d) 0.75
  5. 5.What is the value of the digit 8 in 13.892? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  6. 6.Which is the smallest: 0.3, 0.31, 0.094, 0.272? (a) 0.3 (b) 0.31 (c) 0.094 (d) 0.272
  7. 7.What is the value of the digit 9 in 96.725? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  8. 8.Which is the greatest: 0.214, 0.3, 0.35, 0.066? (a) 0.214 (b) 0.3 (c) 0.35 (d) 0.066
  9. 9.4.21 + 2.8 = ? (a) 6.91 (b) 7.01 (c) 4.49 (d) 7.11
  10. 10.3.83 + 9.7 = ? (a) 13.43 (b) 4.8 (c) 13.63 (d) 13.53
  11. 11.Which is the greatest: 0.087, 0.6, 0.583, 0.63? (a) 0.087 (b) 0.6 (c) 0.583 (d) 0.63
  12. 12.1.26 + 1.5 = ? (a) 2.86 (b) 2.66 (c) 2.76 (d) 1.41
  13. 13.Which is the smallest: 0.3, 0.35, 0.244, 0.041? (a) 0.3 (b) 0.35 (c) 0.244 (d) 0.041
  14. 14.Which is the greatest: 0.2, 0.042, 0.187, 0.23? (a) 0.2 (b) 0.042 (c) 0.187 (d) 0.23
  15. 15.Which is the greatest: 0.076, 0.69, 0.6, 0.558? (a) 0.076 (b) 0.69 (c) 0.6 (d) 0.558
  16. 16.What is the value of the digit 3 in 73.469? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  17. 17.2.18 + 8.8 = ? (a) 10.98 (b) 11.08 (c) 3.06 (d) 10.88
  18. 18.What is the value of the digit 1 in 16.932? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  19. 19.Which is the smallest: 0.257, 0.066, 0.3, 0.39? (a) 0.257 (b) 0.066 (c) 0.3 (d) 0.39
  20. 20.Which is the smallest: 0.35, 0.229, 0.3, 0.071? (a) 0.35 (b) 0.229 (c) 0.3 (d) 0.071
  21. 21.Which is the smallest: 0.046, 0.699, 0.74, 0.7? (a) 0.046 (b) 0.699 (c) 0.74 (d) 0.7
  22. 22.9.51 + 3.5 = ? (a) 9.86 (b) 13.01 (c) 13.11 (d) 12.91
  23. 23.What is the value of the digit 9 in 28.149? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  24. 24.What is the value of the digit 4 in 16.482? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  25. 25.Which is the greatest: 0.038, 0.5, 0.423, 0.57? (a) 0.038 (b) 0.5 (c) 0.423 (d) 0.57
  26. 26.7.51 + 8.6 = ? (a) 16.21 (b) 16.01 (c) 16.11 (d) 8.37
  27. 27.Which is the smallest: 0.581, 0.064, 0.6, 0.62? (a) 0.581 (b) 0.064 (c) 0.6 (d) 0.62
  28. 28.Which is the greatest: 0.452, 0.5, 0.57, 0.091? (a) 0.452 (b) 0.5 (c) 0.57 (d) 0.091
  29. 29.Which is the greatest: 0.26, 0.2, 0.172, 0.063? (a) 0.26 (b) 0.2 (c) 0.172 (d) 0.063
  30. 30.What is the value of the digit 1 in 15.768? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  31. 31.What is the value of the digit 1 in 71.293? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  32. 32.What is the value of the digit 2 in 46.253? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  33. 33.Which is the greatest: 0.32, 0.3, 0.268, 0.013? (a) 0.32 (b) 0.3 (c) 0.268 (d) 0.013
  34. 34.Which is the greatest: 0.52, 0.5, 0.096, 0.495? (a) 0.52 (b) 0.5 (c) 0.096 (d) 0.495
  35. 35.1.13 + 5.5 = ? (a) 6.73 (b) 6.53 (c) 1.68 (d) 6.63
  36. 36.Which is the greatest: 0.445, 0.5, 0.51, 0.021? (a) 0.445 (b) 0.5 (c) 0.51 (d) 0.021
  37. 37.What is the value of the digit 2 in 34.512? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  38. 38.Which is the greatest: 0.3, 0.38, 0.211, 0.059? (a) 0.3 (b) 0.38 (c) 0.211 (d) 0.059
  39. 39.2.71 + 9.1 = ? (a) 11.71 (b) 3.62 (c) 11.81 (d) 11.91
  40. 40.8.24 + 8.7 = ? (a) 9.11 (b) 17.04 (c) 16.94 (d) 16.84

Answer key

  1. 19.31
  2. 0.9
  3. 0.01
  4. 0.045
  5. 0.8
  6. 0.094
  7. 90
  8. 0.35
  9. 7.01
  10. 13.53
  11. 0.63
  12. 2.76
  13. 0.041
  14. 0.23
  15. 0.69
  16. 3
  17. 10.98
  18. 10
  19. 0.066
  20. 0.071
  21. 0.046
  22. 13.01
  23. 0.009
  24. 0.4
  25. 0.57
  26. 16.11
  27. 0.064
  28. 0.57
  29. 0.26
  30. 10
  31. 1
  32. 0.2
  33. 0.32
  34. 0.52
  35. 6.63
  36. 0.51
  37. 0.002
  38. 0.38
  39. 11.81
  40. 16.94

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