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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 474 · 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 1 in 89.615? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  2. 2.9.27 + 7.1 = ? (a) 16.27 (b) 16.37 (c) 16.47 (d) 9.98
  3. 3.7.96 + 3.6 = ? (a) 11.56 (b) 8.32 (c) 11.46 (d) 11.66
  4. 4.2.57 + 5.5 = ? (a) 3.12 (b) 7.97 (c) 8.17 (d) 8.07
  5. 5.6.61 + 7.4 = ? (a) 7.35 (b) 13.91 (c) 14.01 (d) 14.11
  6. 6.2.58 + 8.9 = ? (a) 3.47 (b) 11.48 (c) 11.58 (d) 11.38
  7. 7.Which is the greatest: 0.32, 0.095, 0.298, 0.3? (a) 0.32 (b) 0.095 (c) 0.298 (d) 0.3
  8. 8.What is the value of the digit 8 in 58.694? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  9. 9.Which is the smallest: 0.046, 0.3, 0.33, 0.239? (a) 0.046 (b) 0.3 (c) 0.33 (d) 0.239
  10. 10.3.52 + 5.1 = ? (a) 4.03 (b) 8.72 (c) 8.62 (d) 8.52
  11. 11.What is the value of the digit 4 in 32.174? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  12. 12.5.43 + 1.4 = ? (a) 6.73 (b) 6.83 (c) 6.93 (d) 5.57
  13. 13.Which is the smallest: 0.335, 0.093, 0.4, 0.42? (a) 0.335 (b) 0.093 (c) 0.4 (d) 0.42
  14. 14.Which is the greatest: 0.127, 0.24, 0.2, 0.058? (a) 0.127 (b) 0.24 (c) 0.2 (d) 0.058
  15. 15.What is the value of the digit 9 in 96.837? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  16. 16.6.58 + 8.2 = ? (a) 7.4 (b) 14.68 (c) 14.78 (d) 14.88
  17. 17.What is the value of the digit 9 in 17.926? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  18. 18.Which is the greatest: 0.072, 0.139, 0.28, 0.2? (a) 0.072 (b) 0.139 (c) 0.28 (d) 0.2
  19. 19.Which is the greatest: 0.42, 0.368, 0.058, 0.4? (a) 0.42 (b) 0.368 (c) 0.058 (d) 0.4
  20. 20.Which is the greatest: 0.45, 0.349, 0.4, 0.093? (a) 0.45 (b) 0.349 (c) 0.4 (d) 0.093
  21. 21.5.61 + 7.7 = ? (a) 13.41 (b) 6.38 (c) 13.31 (d) 13.21
  22. 22.6.11 + 3.5 = ? (a) 9.61 (b) 6.46 (c) 9.51 (d) 9.71
  23. 23.What is the value of the digit 3 in 67.593? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  24. 24.Which is the greatest: 0.197, 0.034, 0.2, 0.28? (a) 0.197 (b) 0.034 (c) 0.2 (d) 0.28
  25. 25.Which is the smallest: 0.088, 0.27, 0.2, 0.137? (a) 0.088 (b) 0.27 (c) 0.2 (d) 0.137
  26. 26.1.15 + 6.2 = ? (a) 7.25 (b) 1.77 (c) 7.35 (d) 7.45
  27. 27.9.93 + 4.1 = ? (a) 10.34 (b) 13.93 (c) 14.13 (d) 14.03
  28. 28.Which is the smallest: 0.8, 0.791, 0.83, 0.062? (a) 0.8 (b) 0.791 (c) 0.83 (d) 0.062
  29. 29.What is the value of the digit 5 in 36.857? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  30. 30.What is the value of the digit 1 in 91.584? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  31. 31.Which is the greatest: 0.077, 0.8, 0.726, 0.84? (a) 0.077 (b) 0.8 (c) 0.726 (d) 0.84
  32. 32.4.85 + 1.2 = ? (a) 4.97 (b) 6.05 (c) 5.95 (d) 6.15
  33. 33.5.82 + 9.8 = ? (a) 15.62 (b) 6.8 (c) 15.52 (d) 15.72
  34. 34.Which is the smallest: 0.21, 0.2, 0.062, 0.187? (a) 0.21 (b) 0.2 (c) 0.062 (d) 0.187
  35. 35.Which is the smallest: 0.017, 0.716, 0.85, 0.8? (a) 0.017 (b) 0.716 (c) 0.85 (d) 0.8
  36. 36.What is the value of the digit 2 in 82.974? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  37. 37.Which is the smallest: 0.033, 0.23, 0.2, 0.179? (a) 0.033 (b) 0.23 (c) 0.2 (d) 0.179
  38. 38.5.69 + 5.1 = ? (a) 6.2 (b) 10.79 (c) 10.69 (d) 10.89
  39. 39.4.67 + 7.1 = ? (a) 5.38 (b) 11.77 (c) 11.67 (d) 11.87
  40. 40.4.67 + 6.6 = ? (a) 5.33 (b) 11.27 (c) 11.37 (d) 11.17

Answer key

  1. 0.01
  2. 16.37
  3. 11.56
  4. 8.07
  5. 14.01
  6. 11.48
  7. 0.32
  8. 8
  9. 0.046
  10. 8.62
  11. 0.004
  12. 6.83
  13. 0.093
  14. 0.24
  15. 90
  16. 14.78
  17. 0.9
  18. 0.28
  19. 0.42
  20. 0.45
  21. 13.31
  22. 9.61
  23. 0.003
  24. 0.28
  25. 0.088
  26. 7.35
  27. 14.03
  28. 0.062
  29. 0.05
  30. 1
  31. 0.84
  32. 6.05
  33. 15.62
  34. 0.062
  35. 0.017
  36. 2
  37. 0.033
  38. 10.79
  39. 11.77
  40. 11.27

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