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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 255 · 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: 0.034, 0.43, 0.4, 0.313? (a) 0.034 (b) 0.43 (c) 0.4 (d) 0.313
  2. 2.What is the value of the digit 7 in 26.745? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  3. 3.6.63 + 5.7 = ? (a) 12.43 (b) 7.2 (c) 12.23 (d) 12.33
  4. 4.2.59 + 5.7 = ? (a) 3.16 (b) 8.29 (c) 8.19 (d) 8.39
  5. 5.What is the value of the digit 4 in 51.794? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  6. 6.Which is the smallest: 0.024, 0.395, 0.4, 0.42? (a) 0.024 (b) 0.395 (c) 0.4 (d) 0.42
  7. 7.What is the value of the digit 1 in 12.398? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  8. 8.Which is the greatest: 0.071, 0.744, 0.86, 0.8? (a) 0.071 (b) 0.744 (c) 0.86 (d) 0.8
  9. 9.8.59 + 2.1 = ? (a) 10.59 (b) 10.69 (c) 8.8 (d) 10.79
  10. 10.Which is the greatest: 0.412, 0.025, 0.5, 0.57? (a) 0.412 (b) 0.025 (c) 0.5 (d) 0.57
  11. 11.What is the value of the digit 4 in 48.179? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  12. 12.8.68 + 8.8 = ? (a) 9.56 (b) 17.38 (c) 17.58 (d) 17.48
  13. 13.Which is the smallest: 0.093, 0.3, 0.35, 0.284? (a) 0.093 (b) 0.3 (c) 0.35 (d) 0.284
  14. 14.What is the value of the digit 3 in 89.632? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  15. 15.6.13 + 1.1 = ? (a) 7.13 (b) 6.24 (c) 7.33 (d) 7.23
  16. 16.Which is the greatest: 0.333, 0.4, 0.44, 0.026? (a) 0.333 (b) 0.4 (c) 0.44 (d) 0.026
  17. 17.What is the value of the digit 2 in 85.632? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  18. 18.9.41 + 5.5 = ? (a) 15.01 (b) 9.96 (c) 14.81 (d) 14.91
  19. 19.What is the value of the digit 1 in 67.192? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  20. 20.What is the value of the digit 5 in 91.375? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  21. 21.2.43 + 7.5 = ? (a) 9.93 (b) 9.83 (c) 10.03 (d) 3.18
  22. 22.3.15 + 2.7 = ? (a) 5.75 (b) 5.95 (c) 5.85 (d) 3.42
  23. 23.9.35 + 9.4 = ? (a) 18.65 (b) 18.75 (c) 10.29 (d) 18.85
  24. 24.What is the value of the digit 7 in 73.685? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  25. 25.Which is the greatest: 0.7, 0.629, 0.021, 0.73? (a) 0.7 (b) 0.629 (c) 0.021 (d) 0.73
  26. 26.3.38 + 2.3 = ? (a) 5.58 (b) 5.78 (c) 3.61 (d) 5.68
  27. 27.What is the value of the digit 3 in 95.673? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  28. 28.What is the value of the digit 9 in 15.492? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  29. 29.What is the value of the digit 7 in 49.876? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  30. 30.Which is the greatest: 0.016, 0.614, 0.75, 0.7? (a) 0.016 (b) 0.614 (c) 0.75 (d) 0.7
  31. 31.4.66 + 8.8 = ? (a) 13.36 (b) 13.46 (c) 5.54 (d) 13.56
  32. 32.What is the value of the digit 4 in 94.623? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  33. 33.What is the value of the digit 7 in 86.372? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  34. 34.9.62 + 9.6 = ? (a) 19.32 (b) 19.22 (c) 10.58 (d) 19.12
  35. 35.What is the value of the digit 5 in 13.526? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  36. 36.2.79 + 9.4 = ? (a) 12.19 (b) 12.09 (c) 12.29 (d) 3.73
  37. 37.Which is the greatest: 0.35, 0.064, 0.3, 0.295? (a) 0.35 (b) 0.064 (c) 0.3 (d) 0.295
  38. 38.What is the value of the digit 9 in 13.592? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  39. 39.4.32 + 2.5 = ? (a) 6.72 (b) 6.92 (c) 6.82 (d) 4.57
  40. 40.7.22 + 1.3 = ? (a) 8.62 (b) 7.35 (c) 8.52 (d) 8.42

Answer key

  1. 0.034
  2. 0.7
  3. 12.33
  4. 8.29
  5. 0.004
  6. 0.024
  7. 10
  8. 0.86
  9. 10.69
  10. 0.57
  11. 40
  12. 17.48
  13. 0.093
  14. 0.03
  15. 7.23
  16. 0.44
  17. 0.002
  18. 14.91
  19. 0.1
  20. 0.005
  21. 9.93
  22. 5.85
  23. 18.75
  24. 70
  25. 0.73
  26. 5.68
  27. 0.003
  28. 0.09
  29. 0.07
  30. 0.75
  31. 13.46
  32. 4
  33. 0.07
  34. 19.22
  35. 0.5
  36. 12.19
  37. 0.35
  38. 0.09
  39. 6.82
  40. 8.52

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