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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 732 · 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 smallest: 0.4, 0.362, 0.42, 0.076? (a) 0.4 (b) 0.362 (c) 0.42 (d) 0.076
  2. 2.What is the value of the digit 1 in 31.726? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  3. 3.8.55 + 6.1 = ? (a) 9.16 (b) 14.65 (c) 14.55 (d) 14.75
  4. 4.3.67 + 4.9 = ? (a) 4.16 (b) 8.67 (c) 8.57 (d) 8.47
  5. 5.9.72 + 4.2 = ? (a) 13.82 (b) 14.02 (c) 10.14 (d) 13.92
  6. 6.What is the value of the digit 1 in 27.581? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  7. 7.Which is the greatest: 0.6, 0.027, 0.63, 0.566? (a) 0.6 (b) 0.027 (c) 0.63 (d) 0.566
  8. 8.Which is the smallest: 0.149, 0.2, 0.23, 0.072? (a) 0.149 (b) 0.2 (c) 0.23 (d) 0.072
  9. 9.What is the value of the digit 5 in 14.582? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  10. 10.4.81 + 5.2 = ? (a) 9.91 (b) 10.01 (c) 10.11 (d) 5.33
  11. 11.Which is the smallest: 0.222, 0.31, 0.085, 0.3? (a) 0.222 (b) 0.31 (c) 0.085 (d) 0.3
  12. 12.6.71 + 1.3 = ? (a) 8.11 (b) 7.91 (c) 8.01 (d) 6.84
  13. 13.What is the value of the digit 2 in 21.369? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  14. 14.4.45 + 2.8 = ? (a) 7.25 (b) 4.73 (c) 7.15 (d) 7.35
  15. 15.3.71 + 4.1 = ? (a) 4.12 (b) 7.91 (c) 7.81 (d) 7.71
  16. 16.What is the value of the digit 4 in 47.283? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  17. 17.3.54 + 3.4 = ? (a) 6.84 (b) 7.04 (c) 6.94 (d) 3.88
  18. 18.What is the value of the digit 9 in 32.917? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  19. 19.Which is the greatest: 0.582, 0.077, 0.6, 0.65? (a) 0.582 (b) 0.077 (c) 0.6 (d) 0.65
  20. 20.Which is the greatest: 0.73, 0.626, 0.073, 0.7? (a) 0.73 (b) 0.626 (c) 0.073 (d) 0.7
  21. 21.5.77 + 7.8 = ? (a) 13.57 (b) 6.55 (c) 13.47 (d) 13.67
  22. 22.5.51 + 6.5 = ? (a) 6.16 (b) 11.91 (c) 12.11 (d) 12.01
  23. 23.Which is the greatest: 0.161, 0.062, 0.23, 0.2? (a) 0.161 (b) 0.062 (c) 0.23 (d) 0.2
  24. 24.What is the value of the digit 4 in 53.624? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  25. 25.1.24 + 9.4 = ? (a) 2.18 (b) 10.54 (c) 10.64 (d) 10.74
  26. 26.Which is the smallest: 0.736, 0.81, 0.011, 0.8? (a) 0.736 (b) 0.81 (c) 0.011 (d) 0.8
  27. 27.Which is the smallest: 0.8, 0.052, 0.81, 0.725? (a) 0.8 (b) 0.052 (c) 0.81 (d) 0.725
  28. 28.What is the value of the digit 4 in 42.357? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  29. 29.1.18 + 3.4 = ? (a) 4.58 (b) 4.48 (c) 1.52 (d) 4.68
  30. 30.Which is the greatest: 0.041, 0.6, 0.61, 0.562? (a) 0.041 (b) 0.6 (c) 0.61 (d) 0.562
  31. 31.8.94 + 4.2 = ? (a) 9.36 (b) 13.24 (c) 13.04 (d) 13.14
  32. 32.5.22 + 1.5 = ? (a) 6.62 (b) 5.37 (c) 6.72 (d) 6.82
  33. 33.Which is the greatest: 0.4, 0.032, 0.362, 0.46? (a) 0.4 (b) 0.032 (c) 0.362 (d) 0.46
  34. 34.What is the value of the digit 8 in 24.839? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  35. 35.What is the value of the digit 2 in 74.253? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  36. 36.Which is the smallest: 0.42, 0.368, 0.046, 0.4? (a) 0.42 (b) 0.368 (c) 0.046 (d) 0.4
  37. 37.2.52 + 2.3 = ? (a) 4.82 (b) 4.72 (c) 2.75 (d) 4.92
  38. 38.7.31 + 1.9 = ? (a) 9.11 (b) 9.31 (c) 9.21 (d) 7.5
  39. 39.Which is the greatest: 0.82, 0.8, 0.799, 0.048? (a) 0.82 (b) 0.8 (c) 0.799 (d) 0.048
  40. 40.Which is the greatest: 0.722, 0.82, 0.8, 0.018? (a) 0.722 (b) 0.82 (c) 0.8 (d) 0.018

Answer key

  1. 0.076
  2. 1
  3. 14.65
  4. 8.57
  5. 13.92
  6. 0.001
  7. 0.63
  8. 0.072
  9. 0.5
  10. 10.01
  11. 0.085
  12. 8.01
  13. 20
  14. 7.25
  15. 7.81
  16. 40
  17. 6.94
  18. 0.9
  19. 0.65
  20. 0.73
  21. 13.57
  22. 12.01
  23. 0.23
  24. 0.004
  25. 10.64
  26. 0.011
  27. 0.052
  28. 40
  29. 4.58
  30. 0.61
  31. 13.14
  32. 6.72
  33. 0.46
  34. 0.8
  35. 0.2
  36. 0.046
  37. 4.82
  38. 9.21
  39. 0.82
  40. 0.82

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