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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 74 · 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 6 in 51.634? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  2. 2.Which is the smallest: 0.091, 0.3, 0.32, 0.292? (a) 0.091 (b) 0.3 (c) 0.32 (d) 0.292
  3. 3.8.53 + 6.6 = ? (a) 9.19 (b) 15.03 (c) 15.23 (d) 15.13
  4. 4.What is the value of the digit 2 in 57.832? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  5. 5.Which is the smallest: 0.763, 0.011, 0.83, 0.8? (a) 0.763 (b) 0.011 (c) 0.83 (d) 0.8
  6. 6.8.37 + 5.2 = ? (a) 13.47 (b) 13.67 (c) 13.57 (d) 8.89
  7. 7.1.62 + 4.3 = ? (a) 5.82 (b) 2.05 (c) 5.92 (d) 6.02
  8. 8.9.01 + 4.1 = ? (a) 9.42 (b) 13.21 (c) 13.01 (d) 13.11
  9. 9.What is the value of the digit 9 in 29.351? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  10. 10.1.07 + 6.7 = ? (a) 1.74 (b) 7.77 (c) 7.67 (d) 7.87
  11. 11.1.61 + 1.1 = ? (a) 2.81 (b) 1.72 (c) 2.61 (d) 2.71
  12. 12.8.03 + 1.6 = ? (a) 8.19 (b) 9.53 (c) 9.73 (d) 9.63
  13. 13.Which is the smallest: 0.4, 0.44, 0.096, 0.339? (a) 0.4 (b) 0.44 (c) 0.096 (d) 0.339
  14. 14.Which is the smallest: 0.063, 0.21, 0.2, 0.121? (a) 0.063 (b) 0.21 (c) 0.2 (d) 0.121
  15. 15.What is the value of the digit 8 in 86.239? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  16. 16.Which is the smallest: 0.4, 0.021, 0.42, 0.383? (a) 0.4 (b) 0.021 (c) 0.42 (d) 0.383
  17. 17.Which is the smallest: 0.055, 0.31, 0.211, 0.3? (a) 0.055 (b) 0.31 (c) 0.211 (d) 0.3
  18. 18.6.68 + 7.2 = ? (a) 13.88 (b) 7.4 (c) 13.78 (d) 13.98
  19. 19.What is the value of the digit 6 in 46.187? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  20. 20.What is the value of the digit 7 in 74.235? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  21. 21.6.87 + 8.6 = ? (a) 15.57 (b) 15.37 (c) 7.73 (d) 15.47
  22. 22.Which is the smallest: 0.52, 0.084, 0.5, 0.483? (a) 0.52 (b) 0.084 (c) 0.5 (d) 0.483
  23. 23.Which is the greatest: 0.59, 0.462, 0.5, 0.029? (a) 0.59 (b) 0.462 (c) 0.5 (d) 0.029
  24. 24.5.71 + 3.4 = ? (a) 9.11 (b) 6.05 (c) 9.01 (d) 9.21
  25. 25.Which is the greatest: 0.692, 0.75, 0.7, 0.091? (a) 0.692 (b) 0.75 (c) 0.7 (d) 0.091
  26. 26.1.64 + 5.6 = ? (a) 7.34 (b) 2.2 (c) 7.24 (d) 7.14
  27. 27.4.99 + 2.3 = ? (a) 5.22 (b) 7.39 (c) 7.29 (d) 7.19
  28. 28.2.57 + 9.2 = ? (a) 3.49 (b) 11.77 (c) 11.87 (d) 11.67
  29. 29.Which is the smallest: 0.088, 0.3, 0.225, 0.32? (a) 0.088 (b) 0.3 (c) 0.225 (d) 0.32
  30. 30.What is the value of the digit 7 in 94.137? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  31. 31.6.86 + 8.4 = ? (a) 15.26 (b) 15.16 (c) 15.36 (d) 7.7
  32. 32.Which is the smallest: 0.384, 0.43, 0.4, 0.037? (a) 0.384 (b) 0.43 (c) 0.4 (d) 0.037
  33. 33.Which is the greatest: 0.489, 0.5, 0.063, 0.52? (a) 0.489 (b) 0.5 (c) 0.063 (d) 0.52
  34. 34.5.12 + 8.2 = ? (a) 5.94 (b) 13.42 (c) 13.32 (d) 13.22
  35. 35.What is the value of the digit 4 in 94.362? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  36. 36.What is the value of the digit 9 in 79.263? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  37. 37.2.44 + 2.1 = ? (a) 2.65 (b) 4.64 (c) 4.44 (d) 4.54
  38. 38.What is the value of the digit 5 in 18.657? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  39. 39.What is the value of the digit 6 in 75.684? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  40. 40.6.47 + 1.7 = ? (a) 6.64 (b) 8.27 (c) 8.07 (d) 8.17

Answer key

  1. 0.6
  2. 0.091
  3. 15.13
  4. 0.002
  5. 0.011
  6. 13.57
  7. 5.92
  8. 13.11
  9. 9
  10. 7.77
  11. 2.71
  12. 9.63
  13. 0.096
  14. 0.063
  15. 80
  16. 0.021
  17. 0.055
  18. 13.88
  19. 6
  20. 70
  21. 15.47
  22. 0.084
  23. 0.59
  24. 9.11
  25. 0.75
  26. 7.24
  27. 7.29
  28. 11.77
  29. 0.088
  30. 0.007
  31. 15.26
  32. 0.037
  33. 0.52
  34. 13.32
  35. 4
  36. 9
  37. 4.54
  38. 0.05
  39. 0.6
  40. 8.17

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