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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 361 · 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.What is the value of the digit 8 in 82.165? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  2. 2.Which is the smallest: 0.052, 0.8, 0.86, 0.786? (a) 0.052 (b) 0.8 (c) 0.86 (d) 0.786
  3. 3.Which is the greatest: 0.024, 0.256, 0.35, 0.3? (a) 0.024 (b) 0.256 (c) 0.35 (d) 0.3
  4. 4.3.07 + 1.4 = ? (a) 4.37 (b) 3.21 (c) 4.47 (d) 4.57
  5. 5.3.59 + 4.5 = ? (a) 8.19 (b) 4.04 (c) 8.09 (d) 7.99
  6. 6.What is the value of the digit 8 in 26.584? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  7. 7.6.51 + 8.8 = ? (a) 7.39 (b) 15.41 (c) 15.21 (d) 15.31
  8. 8.What is the value of the digit 4 in 24.859? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  9. 9.Which is the smallest: 0.537, 0.61, 0.6, 0.012? (a) 0.537 (b) 0.61 (c) 0.6 (d) 0.012
  10. 10.5.71 + 2.3 = ? (a) 5.94 (b) 7.91 (c) 8.01 (d) 8.11
  11. 11.What is the value of the digit 3 in 28.134? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  12. 12.1.33 + 4.1 = ? (a) 5.43 (b) 1.74 (c) 5.53 (d) 5.33
  13. 13.9.88 + 9.5 = ? (a) 19.48 (b) 19.28 (c) 10.83 (d) 19.38
  14. 14.What is the value of the digit 3 in 87.134? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  15. 15.Which is the greatest: 0.017, 0.531, 0.69, 0.6? (a) 0.017 (b) 0.531 (c) 0.69 (d) 0.6
  16. 16.Which is the greatest: 0.6, 0.091, 0.586, 0.65? (a) 0.6 (b) 0.091 (c) 0.586 (d) 0.65
  17. 17.Which is the greatest: 0.4, 0.316, 0.44, 0.078? (a) 0.4 (b) 0.316 (c) 0.44 (d) 0.078
  18. 18.Which is the greatest: 0.024, 0.73, 0.7, 0.642? (a) 0.024 (b) 0.73 (c) 0.7 (d) 0.642
  19. 19.What is the value of the digit 1 in 47.132? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  20. 20.Which is the greatest: 0.479, 0.52, 0.025, 0.5? (a) 0.479 (b) 0.52 (c) 0.025 (d) 0.5
  21. 21.1.91 + 5.1 = ? (a) 2.42 (b) 7.01 (c) 7.11 (d) 6.91
  22. 22.4.72 + 2.1 = ? (a) 6.72 (b) 4.93 (c) 6.92 (d) 6.82
  23. 23.Which is the greatest: 0.3, 0.043, 0.213, 0.39? (a) 0.3 (b) 0.043 (c) 0.213 (d) 0.39
  24. 24.Which is the smallest: 0.053, 0.418, 0.59, 0.5? (a) 0.053 (b) 0.418 (c) 0.59 (d) 0.5
  25. 25.What is the value of the digit 2 in 19.273? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  26. 26.5.26 + 5.1 = ? (a) 10.36 (b) 10.46 (c) 10.26 (d) 5.77
  27. 27.What is the value of the digit 5 in 72.519? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  28. 28.5.99 + 1.2 = ? (a) 6.11 (b) 7.29 (c) 7.09 (d) 7.19
  29. 29.What is the value of the digit 4 in 46.983? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  30. 30.Which is the smallest: 0.27, 0.135, 0.2, 0.043? (a) 0.27 (b) 0.135 (c) 0.2 (d) 0.043
  31. 31.Which is the greatest: 0.6, 0.022, 0.542, 0.69? (a) 0.6 (b) 0.022 (c) 0.542 (d) 0.69
  32. 32.9.49 + 2.9 = ? (a) 12.49 (b) 12.29 (c) 9.78 (d) 12.39
  33. 33.7.85 + 4.4 = ? (a) 8.29 (b) 12.25 (c) 12.35 (d) 12.15
  34. 34.What is the value of the digit 8 in 86.529? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  35. 35.Which is the greatest: 0.094, 0.79, 0.611, 0.7? (a) 0.094 (b) 0.79 (c) 0.611 (d) 0.7
  36. 36.1.63 + 6.2 = ? (a) 7.93 (b) 7.73 (c) 2.25 (d) 7.83
  37. 37.Which is the smallest: 0.762, 0.88, 0.8, 0.045? (a) 0.762 (b) 0.88 (c) 0.8 (d) 0.045
  38. 38.What is the value of the digit 7 in 58.723? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  39. 39.What is the value of the digit 1 in 63.197? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  40. 40.8.93 + 8.6 = ? (a) 17.63 (b) 17.53 (c) 9.79 (d) 17.43

Answer key

  1. 80
  2. 0.052
  3. 0.35
  4. 4.47
  5. 8.09
  6. 0.08
  7. 15.31
  8. 4
  9. 0.012
  10. 8.01
  11. 0.03
  12. 5.43
  13. 19.38
  14. 0.03
  15. 0.69
  16. 0.65
  17. 0.44
  18. 0.73
  19. 0.1
  20. 0.52
  21. 7.01
  22. 6.82
  23. 0.39
  24. 0.053
  25. 0.2
  26. 10.36
  27. 0.5
  28. 7.19
  29. 40
  30. 0.043
  31. 0.69
  32. 12.39
  33. 12.25
  34. 80
  35. 0.79
  36. 7.83
  37. 0.045
  38. 0.7
  39. 0.1
  40. 17.53

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