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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 746 · 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 greatest: 0.52, 0.036, 0.457, 0.5? (a) 0.52 (b) 0.036 (c) 0.457 (d) 0.5
  2. 2.Which is the smallest: 0.3, 0.38, 0.071, 0.267? (a) 0.3 (b) 0.38 (c) 0.071 (d) 0.267
  3. 3.What is the value of the digit 1 in 41.362? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  4. 4.What is the value of the digit 5 in 25.146? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  5. 5.6.76 + 1.4 = ? (a) 8.16 (b) 8.26 (c) 6.9 (d) 8.06
  6. 6.Which is the smallest: 0.5, 0.53, 0.497, 0.044? (a) 0.5 (b) 0.53 (c) 0.497 (d) 0.044
  7. 7.Which is the greatest: 0.067, 0.595, 0.68, 0.6? (a) 0.067 (b) 0.595 (c) 0.68 (d) 0.6
  8. 8.9.71 + 7.5 = ? (a) 17.21 (b) 10.46 (c) 17.11 (d) 17.31
  9. 9.1.03 + 6.9 = ? (a) 8.03 (b) 1.72 (c) 7.93 (d) 7.83
  10. 10.5.88 + 6.6 = ? (a) 12.48 (b) 12.58 (c) 12.38 (d) 6.54
  11. 11.2.21 + 8.1 = ? (a) 10.41 (b) 10.31 (c) 3.02 (d) 10.21
  12. 12.8.61 + 8.3 = ? (a) 16.91 (b) 9.44 (c) 16.81 (d) 17.01
  13. 13.5.14 + 3.8 = ? (a) 8.84 (b) 9.04 (c) 5.52 (d) 8.94
  14. 14.What is the value of the digit 2 in 68.235? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  15. 15.Which is the smallest: 0.111, 0.2, 0.031, 0.29? (a) 0.111 (b) 0.2 (c) 0.031 (d) 0.29
  16. 16.What is the value of the digit 2 in 61.295? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  17. 17.Which is the smallest: 0.092, 0.321, 0.4, 0.41? (a) 0.092 (b) 0.321 (c) 0.4 (d) 0.41
  18. 18.1.52 + 6.4 = ? (a) 8.02 (b) 2.16 (c) 7.82 (d) 7.92
  19. 19.8.11 + 9.1 = ? (a) 17.31 (b) 17.11 (c) 17.21 (d) 9.02
  20. 20.2.18 + 7.3 = ? (a) 9.38 (b) 9.48 (c) 2.91 (d) 9.58
  21. 21.1.31 + 6.2 = ? (a) 7.51 (b) 7.61 (c) 7.41 (d) 1.93
  22. 22.1.05 + 8.6 = ? (a) 9.75 (b) 9.55 (c) 1.91 (d) 9.65
  23. 23.Which is the greatest: 0.068, 0.391, 0.4, 0.43? (a) 0.068 (b) 0.391 (c) 0.4 (d) 0.43
  24. 24.4.41 + 1.8 = ? (a) 6.11 (b) 6.21 (c) 4.59 (d) 6.31
  25. 25.4.32 + 4.7 = ? (a) 9.12 (b) 8.92 (c) 9.02 (d) 4.79
  26. 26.6.45 + 9.7 = ? (a) 16.15 (b) 16.05 (c) 16.25 (d) 7.42
  27. 27.8.47 + 8.4 = ? (a) 16.77 (b) 16.87 (c) 9.31 (d) 16.97
  28. 28.8.61 + 3.1 = ? (a) 8.92 (b) 11.61 (c) 11.71 (d) 11.81
  29. 29.1.51 + 2.8 = ? (a) 4.31 (b) 1.79 (c) 4.21 (d) 4.41
  30. 30.Which is the greatest: 0.468, 0.047, 0.5, 0.52? (a) 0.468 (b) 0.047 (c) 0.5 (d) 0.52
  31. 31.Which is the smallest: 0.066, 0.3, 0.33, 0.222? (a) 0.066 (b) 0.3 (c) 0.33 (d) 0.222
  32. 32.What is the value of the digit 9 in 96.237? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  33. 33.What is the value of the digit 9 in 59.423? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  34. 34.Which is the smallest: 0.061, 0.33, 0.3, 0.258? (a) 0.061 (b) 0.33 (c) 0.3 (d) 0.258
  35. 35.What is the value of the digit 4 in 52.348? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  36. 36.3.19 + 7.2 = ? (a) 10.39 (b) 10.49 (c) 10.29 (d) 3.91
  37. 37.7.43 + 8.9 = ? (a) 8.32 (b) 16.43 (c) 16.33 (d) 16.23
  38. 38.What is the value of the digit 4 in 32.954? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  39. 39.5.41 + 1.4 = ? (a) 5.55 (b) 6.71 (c) 6.81 (d) 6.91
  40. 40.7.17 + 4.6 = ? (a) 11.87 (b) 11.67 (c) 7.63 (d) 11.77

Answer key

  1. 0.52
  2. 0.071
  3. 1
  4. 5
  5. 8.16
  6. 0.044
  7. 0.68
  8. 17.21
  9. 7.93
  10. 12.48
  11. 10.31
  12. 16.91
  13. 8.94
  14. 0.2
  15. 0.031
  16. 0.2
  17. 0.092
  18. 7.92
  19. 17.21
  20. 9.48
  21. 7.51
  22. 9.65
  23. 0.43
  24. 6.21
  25. 9.02
  26. 16.15
  27. 16.87
  28. 11.71
  29. 4.31
  30. 0.52
  31. 0.066
  32. 90
  33. 9
  34. 0.061
  35. 0.04
  36. 10.39
  37. 16.33
  38. 0.004
  39. 6.81
  40. 11.77

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