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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 868 · 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 4 in 36.492? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  2. 2.What is the value of the digit 3 in 53.462? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  3. 3.Which is the smallest: 0.551, 0.073, 0.6, 0.66? (a) 0.551 (b) 0.073 (c) 0.6 (d) 0.66
  4. 4.What is the value of the digit 4 in 27.841? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  5. 5.8.98 + 8.9 = ? (a) 9.87 (b) 17.98 (c) 17.88 (d) 17.78
  6. 6.3.67 + 6.7 = ? (a) 4.34 (b) 10.37 (c) 10.47 (d) 10.27
  7. 7.Which is the greatest: 0.89, 0.8, 0.762, 0.077? (a) 0.89 (b) 0.8 (c) 0.762 (d) 0.077
  8. 8.Which is the greatest: 0.397, 0.036, 0.49, 0.4? (a) 0.397 (b) 0.036 (c) 0.49 (d) 0.4
  9. 9.What is the value of the digit 3 in 74.923? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  10. 10.3.85 + 1.9 = ? (a) 4.04 (b) 5.75 (c) 5.65 (d) 5.85
  11. 11.What is the value of the digit 7 in 92.367? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  12. 12.What is the value of the digit 5 in 71.569? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  13. 13.3.71 + 2.1 = ? (a) 5.81 (b) 5.91 (c) 3.92 (d) 5.71
  14. 14.4.24 + 6.3 = ? (a) 10.54 (b) 10.64 (c) 10.44 (d) 4.87
  15. 15.What is the value of the digit 3 in 98.132? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  16. 16.8.31 + 8.7 = ? (a) 17.01 (b) 9.18 (c) 16.91 (d) 17.11
  17. 17.8.94 + 9.2 = ? (a) 18.14 (b) 9.86 (c) 18.04 (d) 18.24
  18. 18.6.65 + 4.2 = ? (a) 10.95 (b) 10.75 (c) 10.85 (d) 7.07
  19. 19.7.11 + 7.2 = ? (a) 14.21 (b) 14.31 (c) 14.41 (d) 7.83
  20. 20.Which is the greatest: 0.121, 0.028, 0.27, 0.2? (a) 0.121 (b) 0.028 (c) 0.27 (d) 0.2
  21. 21.5.65 + 5.1 = ? (a) 10.75 (b) 6.16 (c) 10.85 (d) 10.65
  22. 22.What is the value of the digit 1 in 16.524? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  23. 23.3.39 + 7.1 = ? (a) 10.49 (b) 10.59 (c) 4.1 (d) 10.39
  24. 24.Which is the greatest: 0.36, 0.3, 0.016, 0.254? (a) 0.36 (b) 0.3 (c) 0.016 (d) 0.254
  25. 25.Which is the greatest: 0.346, 0.4, 0.42, 0.066? (a) 0.346 (b) 0.4 (c) 0.42 (d) 0.066
  26. 26.6.74 + 6.4 = ? (a) 7.38 (b) 13.24 (c) 13.04 (d) 13.14
  27. 27.7.96 + 6.7 = ? (a) 14.56 (b) 14.76 (c) 14.66 (d) 8.63
  28. 28.Which is the smallest: 0.78, 0.7, 0.034, 0.656? (a) 0.78 (b) 0.7 (c) 0.034 (d) 0.656
  29. 29.Which is the smallest: 0.41, 0.363, 0.095, 0.4? (a) 0.41 (b) 0.363 (c) 0.095 (d) 0.4
  30. 30.Which is the smallest: 0.538, 0.026, 0.68, 0.6? (a) 0.538 (b) 0.026 (c) 0.68 (d) 0.6
  31. 31.6.75 + 2.4 = ? (a) 9.25 (b) 9.05 (c) 9.15 (d) 6.99
  32. 32.What is the value of the digit 9 in 85.329? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  33. 33.Which is the greatest: 0.238, 0.3, 0.34, 0.081? (a) 0.238 (b) 0.3 (c) 0.34 (d) 0.081
  34. 34.What is the value of the digit 7 in 21.674? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  35. 35.Which is the smallest: 0.044, 0.47, 0.347, 0.4? (a) 0.044 (b) 0.47 (c) 0.347 (d) 0.4
  36. 36.9.04 + 2.5 = ? (a) 11.54 (b) 9.29 (c) 11.44 (d) 11.64
  37. 37.What is the value of the digit 3 in 38.926? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  38. 38.Which is the greatest: 0.066, 0.318, 0.46, 0.4? (a) 0.066 (b) 0.318 (c) 0.46 (d) 0.4
  39. 39.Which is the smallest: 0.8, 0.729, 0.81, 0.056? (a) 0.8 (b) 0.729 (c) 0.81 (d) 0.056
  40. 40.9.01 + 3.6 = ? (a) 9.37 (b) 12.61 (c) 12.51 (d) 12.71

Answer key

  1. 0.4
  2. 3
  3. 0.073
  4. 0.04
  5. 17.88
  6. 10.37
  7. 0.89
  8. 0.49
  9. 0.003
  10. 5.75
  11. 0.007
  12. 0.5
  13. 5.81
  14. 10.54
  15. 0.03
  16. 17.01
  17. 18.14
  18. 10.85
  19. 14.31
  20. 0.27
  21. 10.75
  22. 10
  23. 10.49
  24. 0.36
  25. 0.42
  26. 13.14
  27. 14.66
  28. 0.034
  29. 0.095
  30. 0.026
  31. 9.15
  32. 0.009
  33. 0.34
  34. 0.07
  35. 0.044
  36. 11.54
  37. 30
  38. 0.46
  39. 0.056
  40. 12.61

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