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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 64 · 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: 0.623, 0.092, 0.72, 0.7? (a) 0.623 (b) 0.092 (c) 0.72 (d) 0.7
  2. 2.8.87 + 5.6 = ? (a) 14.47 (b) 14.57 (c) 9.43 (d) 14.37
  3. 3.What is the value of the digit 4 in 13.594? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  4. 4.What is the value of the digit 4 in 94.213? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  5. 5.What is the value of the digit 2 in 27.984? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  6. 6.8.98 + 5.5 = ? (a) 14.38 (b) 14.58 (c) 14.48 (d) 9.53
  7. 7.Which is the smallest: 0.042, 0.787, 0.8, 0.86? (a) 0.042 (b) 0.787 (c) 0.8 (d) 0.86
  8. 8.1.21 + 2.8 = ? (a) 4.11 (b) 3.91 (c) 4.01 (d) 1.49
  9. 9.What is the value of the digit 2 in 35.218? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  10. 10.What is the value of the digit 5 in 75.128? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  11. 11.2.96 + 8.1 = ? (a) 11.16 (b) 10.96 (c) 3.77 (d) 11.06
  12. 12.5.89 + 7.7 = ? (a) 6.66 (b) 13.59 (c) 13.69 (d) 13.49
  13. 13.What is the value of the digit 2 in 96.824? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  14. 14.1.54 + 8.7 = ? (a) 2.41 (b) 10.24 (c) 10.14 (d) 10.34
  15. 15.Which is the greatest: 0.7, 0.022, 0.633, 0.74? (a) 0.7 (b) 0.022 (c) 0.633 (d) 0.74
  16. 16.What is the value of the digit 7 in 97.258? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  17. 17.What is the value of the digit 7 in 23.457? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  18. 18.Which is the smallest: 0.6, 0.69, 0.013, 0.543? (a) 0.6 (b) 0.69 (c) 0.013 (d) 0.543
  19. 19.2.28 + 9.3 = ? (a) 3.21 (b) 11.58 (c) 11.48 (d) 11.68
  20. 20.Which is the greatest: 0.068, 0.43, 0.4, 0.368? (a) 0.068 (b) 0.43 (c) 0.4 (d) 0.368
  21. 21.7.43 + 3.5 = ? (a) 10.93 (b) 11.03 (c) 10.83 (d) 7.78
  22. 22.What is the value of the digit 1 in 42.781? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  23. 23.What is the value of the digit 9 in 26.913? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  24. 24.2.08 + 9.1 = ? (a) 11.28 (b) 11.08 (c) 11.18 (d) 2.99
  25. 25.6.84 + 2.1 = ? (a) 8.84 (b) 7.05 (c) 8.94 (d) 9.04
  26. 26.5.41 + 5.3 = ? (a) 10.61 (b) 5.94 (c) 10.71 (d) 10.81
  27. 27.1.35 + 5.2 = ? (a) 1.87 (b) 6.65 (c) 6.45 (d) 6.55
  28. 28.Which is the smallest: 0.5, 0.471, 0.041, 0.55? (a) 0.5 (b) 0.471 (c) 0.041 (d) 0.55
  29. 29.9.12 + 7.7 = ? (a) 16.72 (b) 16.92 (c) 16.82 (d) 9.89
  30. 30.4.44 + 6.9 = ? (a) 5.13 (b) 11.24 (c) 11.34 (d) 11.44
  31. 31.Which is the greatest: 0.123, 0.015, 0.2, 0.25? (a) 0.123 (b) 0.015 (c) 0.2 (d) 0.25
  32. 32.What is the value of the digit 6 in 79.416? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  33. 33.What is the value of the digit 7 in 47.826? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  34. 34.Which is the smallest: 0.148, 0.053, 0.2, 0.21? (a) 0.148 (b) 0.053 (c) 0.2 (d) 0.21
  35. 35.9.09 + 1.3 = ? (a) 10.49 (b) 10.39 (c) 9.22 (d) 10.29
  36. 36.What is the value of the digit 5 in 34.651? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  37. 37.Which is the smallest: 0.58, 0.5, 0.044, 0.451? (a) 0.58 (b) 0.5 (c) 0.044 (d) 0.451
  38. 38.Which is the greatest: 0.031, 0.3, 0.261, 0.31? (a) 0.031 (b) 0.3 (c) 0.261 (d) 0.31
  39. 39.8.17 + 3.1 = ? (a) 11.17 (b) 11.37 (c) 11.27 (d) 8.48
  40. 40.Which is the greatest: 0.24, 0.163, 0.069, 0.2? (a) 0.24 (b) 0.163 (c) 0.069 (d) 0.2

Answer key

  1. 0.092
  2. 14.47
  3. 0.004
  4. 4
  5. 20
  6. 14.48
  7. 0.042
  8. 4.01
  9. 0.2
  10. 5
  11. 11.06
  12. 13.59
  13. 0.02
  14. 10.24
  15. 0.74
  16. 7
  17. 0.007
  18. 0.013
  19. 11.58
  20. 0.43
  21. 10.93
  22. 0.001
  23. 0.9
  24. 11.18
  25. 8.94
  26. 10.71
  27. 6.55
  28. 0.041
  29. 16.82
  30. 11.34
  31. 0.25
  32. 0.006
  33. 7
  34. 0.053
  35. 10.39
  36. 0.05
  37. 0.044
  38. 0.31
  39. 11.27
  40. 0.24

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