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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 571 · 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. 1.5.62 + 4.7 = ? (a) 10.32 (b) 6.09 (c) 10.22 (d) 10.42
  2. 2.What is the value of the digit 1 in 42.751? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  3. 3.Which is the greatest: 0.143, 0.22, 0.2, 0.096? (a) 0.143 (b) 0.22 (c) 0.2 (d) 0.096
  4. 4.Which is the greatest: 0.3, 0.36, 0.248, 0.051? (a) 0.3 (b) 0.36 (c) 0.248 (d) 0.051
  5. 5.1.11 + 6.2 = ? (a) 7.41 (b) 7.21 (c) 7.31 (d) 1.73
  6. 6.2.44 + 4.9 = ? (a) 7.24 (b) 7.34 (c) 2.93 (d) 7.44
  7. 7.What is the value of the digit 5 in 87.945? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  8. 8.3.17 + 2.5 = ? (a) 5.67 (b) 5.57 (c) 5.77 (d) 3.42
  9. 9.What is the value of the digit 7 in 36.751? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  10. 10.7.32 + 3.2 = ? (a) 10.62 (b) 10.52 (c) 7.64 (d) 10.42
  11. 11.9.79 + 1.1 = ? (a) 10.99 (b) 10.89 (c) 9.9 (d) 10.79
  12. 12.1.76 + 5.9 = ? (a) 7.76 (b) 2.35 (c) 7.56 (d) 7.66
  13. 13.Which is the greatest: 0.88, 0.034, 0.763, 0.8? (a) 0.88 (b) 0.034 (c) 0.763 (d) 0.8
  14. 14.Which is the greatest: 0.4, 0.342, 0.093, 0.46? (a) 0.4 (b) 0.342 (c) 0.093 (d) 0.46
  15. 15.Which is the greatest: 0.5, 0.55, 0.023, 0.436? (a) 0.5 (b) 0.55 (c) 0.023 (d) 0.436
  16. 16.6.24 + 4.1 = ? (a) 6.65 (b) 10.24 (c) 10.34 (d) 10.44
  17. 17.Which is the greatest: 0.58, 0.5, 0.461, 0.042? (a) 0.58 (b) 0.5 (c) 0.461 (d) 0.042
  18. 18.Which is the smallest: 0.319, 0.41, 0.4, 0.029? (a) 0.319 (b) 0.41 (c) 0.4 (d) 0.029
  19. 19.What is the value of the digit 7 in 76.235? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  20. 20.3.93 + 9.8 = ? (a) 13.63 (b) 13.73 (c) 13.83 (d) 4.91
  21. 21.What is the value of the digit 5 in 39.458? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  22. 22.What is the value of the digit 6 in 47.168? (a) 0.06 (b) 6 (c) 0.006 (d) 0.6
  23. 23.1.39 + 8.4 = ? (a) 2.23 (b) 9.89 (c) 9.79 (d) 9.69
  24. 24.Which is the smallest: 0.069, 0.525, 0.67, 0.6? (a) 0.069 (b) 0.525 (c) 0.67 (d) 0.6
  25. 25.What is the value of the digit 7 in 91.687? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  26. 26.Which is the greatest: 0.073, 0.42, 0.314, 0.4? (a) 0.073 (b) 0.42 (c) 0.314 (d) 0.4
  27. 27.7.41 + 7.2 = ? (a) 14.51 (b) 14.61 (c) 14.71 (d) 8.13
  28. 28.Which is the smallest: 0.455, 0.5, 0.53, 0.082? (a) 0.455 (b) 0.5 (c) 0.53 (d) 0.082
  29. 29.What is the value of the digit 1 in 21.953? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  30. 30.What is the value of the digit 4 in 85.394? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  31. 31.What is the value of the digit 6 in 76.381? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  32. 32.Which is the smallest: 0.013, 0.36, 0.3, 0.279? (a) 0.013 (b) 0.36 (c) 0.3 (d) 0.279
  33. 33.Which is the smallest: 0.262, 0.015, 0.3, 0.35? (a) 0.262 (b) 0.015 (c) 0.3 (d) 0.35
  34. 34.Which is the greatest: 0.419, 0.5, 0.54, 0.035? (a) 0.419 (b) 0.5 (c) 0.54 (d) 0.035
  35. 35.What is the value of the digit 1 in 96.157? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  36. 36.Which is the greatest: 0.191, 0.053, 0.2, 0.29? (a) 0.191 (b) 0.053 (c) 0.2 (d) 0.29
  37. 37.Which is the greatest: 0.112, 0.21, 0.069, 0.2? (a) 0.112 (b) 0.21 (c) 0.069 (d) 0.2
  38. 38.3.66 + 1.8 = ? (a) 3.84 (b) 5.36 (c) 5.46 (d) 5.56
  39. 39.Which is the smallest: 0.287, 0.32, 0.048, 0.3? (a) 0.287 (b) 0.32 (c) 0.048 (d) 0.3
  40. 40.Which is the greatest: 0.532, 0.033, 0.68, 0.6? (a) 0.532 (b) 0.033 (c) 0.68 (d) 0.6

Answer key

  1. 10.32
  2. 0.001
  3. 0.22
  4. 0.36
  5. 7.31
  6. 7.34
  7. 0.005
  8. 5.67
  9. 0.7
  10. 10.52
  11. 10.89
  12. 7.66
  13. 0.88
  14. 0.46
  15. 0.55
  16. 10.34
  17. 0.58
  18. 0.029
  19. 70
  20. 13.73
  21. 0.05
  22. 0.06
  23. 9.79
  24. 0.069
  25. 0.007
  26. 0.42
  27. 14.61
  28. 0.082
  29. 1
  30. 0.004
  31. 6
  32. 0.013
  33. 0.015
  34. 0.54
  35. 0.1
  36. 0.29
  37. 0.21
  38. 5.46
  39. 0.048
  40. 0.68

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