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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 791 · 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: 0.081, 0.35, 0.293, 0.3? (a) 0.081 (b) 0.35 (c) 0.293 (d) 0.3
  2. 2.2.35 + 1.9 = ? (a) 4.35 (b) 4.25 (c) 4.15 (d) 2.54
  3. 3.Which is the smallest: 0.313, 0.4, 0.46, 0.057? (a) 0.313 (b) 0.4 (c) 0.46 (d) 0.057
  4. 4.4.74 + 1.8 = ? (a) 6.54 (b) 6.44 (c) 6.64 (d) 4.92
  5. 5.5.35 + 6.3 = ? (a) 11.55 (b) 11.65 (c) 5.98 (d) 11.75
  6. 6.Which is the greatest: 0.2, 0.28, 0.094, 0.137? (a) 0.2 (b) 0.28 (c) 0.094 (d) 0.137
  7. 7.Which is the greatest: 0.469, 0.5, 0.54, 0.071? (a) 0.469 (b) 0.5 (c) 0.54 (d) 0.071
  8. 8.4.45 + 4.9 = ? (a) 4.94 (b) 9.25 (c) 9.45 (d) 9.35
  9. 9.Which is the smallest: 0.4, 0.084, 0.315, 0.46? (a) 0.4 (b) 0.084 (c) 0.315 (d) 0.46
  10. 10.8.63 + 6.7 = ? (a) 15.23 (b) 9.3 (c) 15.33 (d) 15.43
  11. 11.Which is the smallest: 0.391, 0.42, 0.4, 0.093? (a) 0.391 (b) 0.42 (c) 0.4 (d) 0.093
  12. 12.Which is the smallest: 0.731, 0.037, 0.84, 0.8? (a) 0.731 (b) 0.037 (c) 0.84 (d) 0.8
  13. 13.Which is the smallest: 0.22, 0.036, 0.196, 0.2? (a) 0.22 (b) 0.036 (c) 0.196 (d) 0.2
  14. 14.Which is the greatest: 0.739, 0.8, 0.088, 0.82? (a) 0.739 (b) 0.8 (c) 0.088 (d) 0.82
  15. 15.Which is the smallest: 0.6, 0.65, 0.013, 0.542? (a) 0.6 (b) 0.65 (c) 0.013 (d) 0.542
  16. 16.3.56 + 9.6 = ? (a) 13.26 (b) 13.16 (c) 4.52 (d) 13.06
  17. 17.2.23 + 8.1 = ? (a) 3.04 (b) 10.23 (c) 10.43 (d) 10.33
  18. 18.What is the value of the digit 5 in 57.321? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  19. 19.Which is the smallest: 0.76, 0.055, 0.668, 0.7? (a) 0.76 (b) 0.055 (c) 0.668 (d) 0.7
  20. 20.Which is the smallest: 0.8, 0.86, 0.054, 0.723? (a) 0.8 (b) 0.86 (c) 0.054 (d) 0.723
  21. 21.What is the value of the digit 8 in 81.652? (a) 8 (b) 0.08 (c) 0.8 (d) 80
  22. 22.4.11 + 6.1 = ? (a) 4.72 (b) 10.11 (c) 10.21 (d) 10.31
  23. 23.Which is the greatest: 0.5, 0.52, 0.425, 0.023? (a) 0.5 (b) 0.52 (c) 0.425 (d) 0.023
  24. 24.6.78 + 7.2 = ? (a) 13.98 (b) 13.88 (c) 7.5 (d) 14.08
  25. 25.What is the value of the digit 9 in 87.196? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  26. 26.What is the value of the digit 7 in 37.469? (a) 7 (b) 0.07 (c) 0.7 (d) 70
  27. 27.What is the value of the digit 6 in 29.165? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  28. 28.What is the value of the digit 9 in 58.129? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  29. 29.Which is the greatest: 0.63, 0.082, 0.6, 0.529? (a) 0.63 (b) 0.082 (c) 0.6 (d) 0.529
  30. 30.7.34 + 7.6 = ? (a) 8.1 (b) 14.94 (c) 15.04 (d) 14.84
  31. 31.What is the value of the digit 1 in 83.125? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  32. 32.What is the value of the digit 6 in 41.698? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  33. 33.What is the value of the digit 9 in 92.478? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  34. 34.8.51 + 9.5 = ? (a) 18.11 (b) 18.01 (c) 9.46 (d) 17.91
  35. 35.3.53 + 9.1 = ? (a) 4.44 (b) 12.53 (c) 12.63 (d) 12.73
  36. 36.What is the value of the digit 3 in 46.329? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  37. 37.What is the value of the digit 8 in 81.236? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  38. 38.Which is the greatest: 0.76, 0.691, 0.089, 0.7? (a) 0.76 (b) 0.691 (c) 0.089 (d) 0.7
  39. 39.9.89 + 7.3 = ? (a) 17.09 (b) 10.62 (c) 17.19 (d) 17.29
  40. 40.What is the value of the digit 2 in 23.879? (a) 2 (b) 0.2 (c) 0.02 (d) 20

Answer key

  1. 0.081
  2. 4.25
  3. 0.057
  4. 6.54
  5. 11.65
  6. 0.28
  7. 0.54
  8. 9.35
  9. 0.084
  10. 15.33
  11. 0.093
  12. 0.037
  13. 0.036
  14. 0.82
  15. 0.013
  16. 13.16
  17. 10.33
  18. 50
  19. 0.055
  20. 0.054
  21. 80
  22. 10.21
  23. 0.52
  24. 13.98
  25. 0.09
  26. 7
  27. 0.06
  28. 0.009
  29. 0.63
  30. 14.94
  31. 0.1
  32. 0.6
  33. 90
  34. 18.01
  35. 12.63
  36. 0.3
  37. 80
  38. 0.76
  39. 17.19
  40. 20

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