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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 929 · 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: 0.42, 0.391, 0.4, 0.051? (a) 0.42 (b) 0.391 (c) 0.4 (d) 0.051
  2. 2.Which is the greatest: 0.543, 0.61, 0.6, 0.091? (a) 0.543 (b) 0.61 (c) 0.6 (d) 0.091
  3. 3.3.55 + 8.5 = ? (a) 11.95 (b) 12.05 (c) 4.4 (d) 12.15
  4. 4.4.03 + 3.8 = ? (a) 4.41 (b) 7.93 (c) 7.73 (d) 7.83
  5. 5.8.74 + 6.7 = ? (a) 9.41 (b) 15.54 (c) 15.34 (d) 15.44
  6. 6.What is the value of the digit 8 in 84.195? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  7. 7.1.16 + 7.1 = ? (a) 8.16 (b) 8.26 (c) 8.36 (d) 1.87
  8. 8.4.93 + 2.8 = ? (a) 7.83 (b) 7.63 (c) 7.73 (d) 5.21
  9. 9.3.06 + 3.2 = ? (a) 3.38 (b) 6.16 (c) 6.26 (d) 6.36
  10. 10.Which is the smallest: 0.3, 0.224, 0.043, 0.32? (a) 0.3 (b) 0.224 (c) 0.043 (d) 0.32
  11. 11.What is the value of the digit 5 in 36.258? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  12. 12.Which is the smallest: 0.719, 0.83, 0.8, 0.023? (a) 0.719 (b) 0.83 (c) 0.8 (d) 0.023
  13. 13.What is the value of the digit 3 in 73.519? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  14. 14.What is the value of the digit 2 in 26.135? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  15. 15.Which is the greatest: 0.042, 0.566, 0.69, 0.6? (a) 0.042 (b) 0.566 (c) 0.69 (d) 0.6
  16. 16.6.05 + 3.9 = ? (a) 10.05 (b) 9.85 (c) 9.95 (d) 6.44
  17. 17.8.13 + 8.6 = ? (a) 16.63 (b) 16.73 (c) 16.83 (d) 8.99
  18. 18.What is the value of the digit 2 in 23.894? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  19. 19.What is the value of the digit 7 in 26.795? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  20. 20.What is the value of the digit 1 in 41.235? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  21. 21.What is the value of the digit 8 in 31.458? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  22. 22.What is the value of the digit 9 in 49.756? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  23. 23.Which is the greatest: 0.43, 0.344, 0.4, 0.064? (a) 0.43 (b) 0.344 (c) 0.4 (d) 0.064
  24. 24.8.29 + 8.1 = ? (a) 9.1 (b) 16.29 (c) 16.39 (d) 16.49
  25. 25.8.68 + 4.1 = ? (a) 12.68 (b) 12.88 (c) 9.09 (d) 12.78
  26. 26.What is the value of the digit 2 in 42.761? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  27. 27.What is the value of the digit 4 in 41.528? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  28. 28.Which is the smallest: 0.284, 0.032, 0.3, 0.31? (a) 0.284 (b) 0.032 (c) 0.3 (d) 0.31
  29. 29.2.01 + 5.1 = ? (a) 7.21 (b) 7.01 (c) 2.52 (d) 7.11
  30. 30.1.78 + 8.8 = ? (a) 2.66 (b) 10.68 (c) 10.58 (d) 10.48
  31. 31.Which is the smallest: 0.027, 0.22, 0.118, 0.2? (a) 0.027 (b) 0.22 (c) 0.118 (d) 0.2
  32. 32.What is the value of the digit 5 in 84.527? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  33. 33.What is the value of the digit 4 in 36.475? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  34. 34.Which is the greatest: 0.087, 0.3, 0.299, 0.33? (a) 0.087 (b) 0.3 (c) 0.299 (d) 0.33
  35. 35.What is the value of the digit 1 in 76.314? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  36. 36.Which is the smallest: 0.043, 0.188, 0.25, 0.2? (a) 0.043 (b) 0.188 (c) 0.25 (d) 0.2
  37. 37.Which is the greatest: 0.071, 0.7, 0.666, 0.72? (a) 0.071 (b) 0.7 (c) 0.666 (d) 0.72
  38. 38.1.28 + 4.5 = ? (a) 1.73 (b) 5.78 (c) 5.88 (d) 5.68
  39. 39.4.31 + 9.2 = ? (a) 13.51 (b) 5.23 (c) 13.41 (d) 13.61
  40. 40.Which is the smallest: 0.2, 0.22, 0.026, 0.181? (a) 0.2 (b) 0.22 (c) 0.026 (d) 0.181

Answer key

  1. 0.42
  2. 0.61
  3. 12.05
  4. 7.83
  5. 15.44
  6. 80
  7. 8.26
  8. 7.73
  9. 6.26
  10. 0.043
  11. 0.05
  12. 0.023
  13. 3
  14. 20
  15. 0.69
  16. 9.95
  17. 16.73
  18. 20
  19. 0.7
  20. 1
  21. 0.008
  22. 9
  23. 0.43
  24. 16.39
  25. 12.78
  26. 2
  27. 40
  28. 0.032
  29. 7.11
  30. 10.58
  31. 0.027
  32. 0.5
  33. 0.4
  34. 0.33
  35. 0.01
  36. 0.043
  37. 0.72
  38. 5.78
  39. 13.51
  40. 0.026

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