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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 673 · 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. 1.5.11 + 3.3 = ? (a) 8.31 (b) 5.44 (c) 8.51 (d) 8.41
  2. 2.What is the value of the digit 7 in 52.317? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  3. 3.What is the value of the digit 9 in 19.456? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  4. 4.1.32 + 3.5 = ? (a) 4.82 (b) 4.72 (c) 1.67 (d) 4.92
  5. 5.What is the value of the digit 9 in 94.873? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  6. 6.Which is the greatest: 0.4, 0.42, 0.383, 0.026? (a) 0.4 (b) 0.42 (c) 0.383 (d) 0.026
  7. 7.What is the value of the digit 5 in 94.315? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  8. 8.Which is the greatest: 0.633, 0.72, 0.7, 0.084? (a) 0.633 (b) 0.72 (c) 0.7 (d) 0.084
  9. 9.Which is the smallest: 0.026, 0.334, 0.49, 0.4? (a) 0.026 (b) 0.334 (c) 0.49 (d) 0.4
  10. 10.1.33 + 6.3 = ? (a) 1.96 (b) 7.73 (c) 7.53 (d) 7.63
  11. 11.Which is the smallest: 0.5, 0.066, 0.56, 0.449? (a) 0.5 (b) 0.066 (c) 0.56 (d) 0.449
  12. 12.What is the value of the digit 6 in 28.416? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  13. 13.6.68 + 5.5 = ? (a) 12.08 (b) 12.18 (c) 7.23 (d) 12.28
  14. 14.Which is the greatest: 0.52, 0.479, 0.032, 0.5? (a) 0.52 (b) 0.479 (c) 0.032 (d) 0.5
  15. 15.What is the value of the digit 9 in 24.859? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  16. 16.Which is the greatest: 0.65, 0.6, 0.539, 0.022? (a) 0.65 (b) 0.6 (c) 0.539 (d) 0.022
  17. 17.What is the value of the digit 9 in 19.346? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  18. 18.3.52 + 3.2 = ? (a) 6.82 (b) 3.84 (c) 6.62 (d) 6.72
  19. 19.9.27 + 5.1 = ? (a) 9.78 (b) 14.47 (c) 14.27 (d) 14.37
  20. 20.Which is the greatest: 0.86, 0.8, 0.028, 0.726? (a) 0.86 (b) 0.8 (c) 0.028 (d) 0.726
  21. 21.Which is the smallest: 0.674, 0.035, 0.7, 0.72? (a) 0.674 (b) 0.035 (c) 0.7 (d) 0.72
  22. 22.8.27 + 7.6 = ? (a) 9.03 (b) 15.77 (c) 15.87 (d) 15.97
  23. 23.1.83 + 7.9 = ? (a) 2.62 (b) 9.73 (c) 9.83 (d) 9.63
  24. 24.What is the value of the digit 4 in 49.762? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  25. 25.Which is the greatest: 0.088, 0.3, 0.287, 0.34? (a) 0.088 (b) 0.3 (c) 0.287 (d) 0.34
  26. 26.What is the value of the digit 1 in 89.514? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  27. 27.What is the value of the digit 9 in 32.519? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  28. 28.Which is the greatest: 0.82, 0.771, 0.022, 0.8? (a) 0.82 (b) 0.771 (c) 0.022 (d) 0.8
  29. 29.What is the value of the digit 8 in 93.186? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  30. 30.What is the value of the digit 2 in 39.724? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  31. 31.Which is the smallest: 0.24, 0.022, 0.2, 0.163? (a) 0.24 (b) 0.022 (c) 0.2 (d) 0.163
  32. 32.What is the value of the digit 6 in 26.173? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  33. 33.3.46 + 2.4 = ? (a) 3.7 (b) 5.76 (c) 5.96 (d) 5.86
  34. 34.What is the value of the digit 4 in 86.794? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  35. 35.5.42 + 2.6 = ? (a) 5.68 (b) 8.12 (c) 8.02 (d) 7.92
  36. 36.What is the value of the digit 5 in 37.245? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  37. 37.What is the value of the digit 7 in 94.751? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  38. 38.Which is the greatest: 0.066, 0.8, 0.87, 0.726? (a) 0.066 (b) 0.8 (c) 0.87 (d) 0.726
  39. 39.What is the value of the digit 6 in 14.638? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  40. 40.What is the value of the digit 9 in 65.793? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09

Answer key

  1. 8.41
  2. 0.007
  3. 9
  4. 4.82
  5. 90
  6. 0.42
  7. 0.005
  8. 0.72
  9. 0.026
  10. 7.63
  11. 0.066
  12. 0.006
  13. 12.18
  14. 0.52
  15. 0.009
  16. 0.65
  17. 9
  18. 6.72
  19. 14.37
  20. 0.86
  21. 0.035
  22. 15.87
  23. 9.73
  24. 40
  25. 0.34
  26. 0.01
  27. 0.009
  28. 0.82
  29. 0.08
  30. 0.02
  31. 0.022
  32. 6
  33. 5.86
  34. 0.004
  35. 8.02
  36. 0.005
  37. 0.7
  38. 0.87
  39. 0.6
  40. 0.09

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