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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 646 · 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 46.138? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  2. 2.Which is the greatest: 0.029, 0.532, 0.6, 0.65? (a) 0.029 (b) 0.532 (c) 0.6 (d) 0.65
  3. 3.4.12 + 9.5 = ? (a) 5.07 (b) 13.62 (c) 13.52 (d) 13.72
  4. 4.What is the value of the digit 5 in 98.521? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  5. 5.What is the value of the digit 9 in 19.243? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  6. 6.Which is the greatest: 0.082, 0.77, 0.623, 0.7? (a) 0.082 (b) 0.77 (c) 0.623 (d) 0.7
  7. 7.Which is the greatest: 0.8, 0.046, 0.86, 0.759? (a) 0.8 (b) 0.046 (c) 0.86 (d) 0.759
  8. 8.9.76 + 4.6 = ? (a) 14.46 (b) 14.36 (c) 14.26 (d) 10.22
  9. 9.Which is the greatest: 0.671, 0.076, 0.7, 0.78? (a) 0.671 (b) 0.076 (c) 0.7 (d) 0.78
  10. 10.Which is the greatest: 0.21, 0.054, 0.2, 0.179? (a) 0.21 (b) 0.054 (c) 0.2 (d) 0.179
  11. 11.What is the value of the digit 1 in 14.286? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  12. 12.4.41 + 3.1 = ? (a) 7.41 (b) 7.51 (c) 7.61 (d) 4.72
  13. 13.Which is the greatest: 0.054, 0.3, 0.278, 0.37? (a) 0.054 (b) 0.3 (c) 0.278 (d) 0.37
  14. 14.Which is the greatest: 0.4, 0.48, 0.394, 0.056? (a) 0.4 (b) 0.48 (c) 0.394 (d) 0.056
  15. 15.What is the value of the digit 6 in 31.629? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  16. 16.2.76 + 6.6 = ? (a) 9.36 (b) 9.26 (c) 3.42 (d) 9.46
  17. 17.What is the value of the digit 9 in 47.689? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  18. 18.4.93 + 9.1 = ? (a) 14.13 (b) 13.93 (c) 5.84 (d) 14.03
  19. 19.What is the value of the digit 7 in 43.769? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  20. 20.Which is the greatest: 0.7, 0.079, 0.71, 0.693? (a) 0.7 (b) 0.079 (c) 0.71 (d) 0.693
  21. 21.Which is the greatest: 0.248, 0.3, 0.073, 0.31? (a) 0.248 (b) 0.3 (c) 0.073 (d) 0.31
  22. 22.Which is the greatest: 0.81, 0.757, 0.8, 0.094? (a) 0.81 (b) 0.757 (c) 0.8 (d) 0.094
  23. 23.What is the value of the digit 7 in 47.612? (a) 7 (b) 0.07 (c) 0.7 (d) 70
  24. 24.What is the value of the digit 1 in 31.862? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  25. 25.7.22 + 4.1 = ? (a) 11.42 (b) 7.63 (c) 11.22 (d) 11.32
  26. 26.Which is the greatest: 0.5, 0.071, 0.59, 0.413? (a) 0.5 (b) 0.071 (c) 0.59 (d) 0.413
  27. 27.What is the value of the digit 3 in 84.937? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  28. 28.8.37 + 3.7 = ? (a) 11.97 (b) 12.17 (c) 8.74 (d) 12.07
  29. 29.6.41 + 1.9 = ? (a) 8.41 (b) 8.31 (c) 8.21 (d) 6.6
  30. 30.1.14 + 2.1 = ? (a) 3.14 (b) 3.34 (c) 3.24 (d) 1.35
  31. 31.4.31 + 6.5 = ? (a) 10.91 (b) 10.81 (c) 10.71 (d) 4.96
  32. 32.8.81 + 8.1 = ? (a) 16.81 (b) 17.01 (c) 16.91 (d) 9.62
  33. 33.What is the value of the digit 8 in 87.264? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  34. 34.7.69 + 1.9 = ? (a) 9.69 (b) 9.59 (c) 9.49 (d) 7.88
  35. 35.6.43 + 9.1 = ? (a) 15.43 (b) 7.34 (c) 15.63 (d) 15.53
  36. 36.What is the value of the digit 3 in 73.452? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  37. 37.2.68 + 1.7 = ? (a) 2.85 (b) 4.38 (c) 4.28 (d) 4.48
  38. 38.Which is the smallest: 0.6, 0.584, 0.69, 0.016? (a) 0.6 (b) 0.584 (c) 0.69 (d) 0.016
  39. 39.What is the value of the digit 8 in 82.597? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  40. 40.What is the value of the digit 9 in 72.968? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009

Answer key

  1. 0.008
  2. 0.65
  3. 13.62
  4. 0.5
  5. 9
  6. 0.77
  7. 0.86
  8. 14.36
  9. 0.78
  10. 0.21
  11. 10
  12. 7.51
  13. 0.37
  14. 0.48
  15. 0.6
  16. 9.36
  17. 0.009
  18. 14.03
  19. 0.7
  20. 0.71
  21. 0.31
  22. 0.81
  23. 7
  24. 1
  25. 11.32
  26. 0.59
  27. 0.03
  28. 12.07
  29. 8.31
  30. 3.24
  31. 10.81
  32. 16.91
  33. 80
  34. 9.59
  35. 15.53
  36. 3
  37. 4.38
  38. 0.016
  39. 80
  40. 0.9

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