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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 574 · 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 greatest: 0.28, 0.186, 0.012, 0.2? (a) 0.28 (b) 0.186 (c) 0.012 (d) 0.2
  2. 2.What is the value of the digit 3 in 68.573? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  3. 3.Which is the smallest: 0.561, 0.63, 0.072, 0.6? (a) 0.561 (b) 0.63 (c) 0.072 (d) 0.6
  4. 4.6.15 + 5.9 = ? (a) 6.74 (b) 12.15 (c) 11.95 (d) 12.05
  5. 5.What is the value of the digit 8 in 75.832? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  6. 6.4.03 + 5.6 = ? (a) 9.53 (b) 9.73 (c) 9.63 (d) 4.59
  7. 7.Which is the greatest: 0.292, 0.32, 0.3, 0.081? (a) 0.292 (b) 0.32 (c) 0.3 (d) 0.081
  8. 8.9.21 + 1.5 = ? (a) 10.81 (b) 10.61 (c) 9.36 (d) 10.71
  9. 9.Which is the smallest: 0.629, 0.76, 0.039, 0.7? (a) 0.629 (b) 0.76 (c) 0.039 (d) 0.7
  10. 10.1.31 + 2.4 = ? (a) 3.81 (b) 3.61 (c) 1.55 (d) 3.71
  11. 11.Which is the greatest: 0.092, 0.582, 0.6, 0.63? (a) 0.092 (b) 0.582 (c) 0.6 (d) 0.63
  12. 12.What is the value of the digit 9 in 21.469? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  13. 13.3.04 + 4.7 = ? (a) 3.51 (b) 7.64 (c) 7.74 (d) 7.84
  14. 14.What is the value of the digit 9 in 72.931? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  15. 15.9.88 + 3.2 = ? (a) 12.98 (b) 13.18 (c) 10.2 (d) 13.08
  16. 16.Which is the smallest: 0.088, 0.626, 0.7, 0.76? (a) 0.088 (b) 0.626 (c) 0.7 (d) 0.76
  17. 17.Which is the greatest: 0.72, 0.7, 0.011, 0.656? (a) 0.72 (b) 0.7 (c) 0.011 (d) 0.656
  18. 18.What is the value of the digit 8 in 29.583? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  19. 19.9.25 + 4.5 = ? (a) 13.75 (b) 13.65 (c) 9.7 (d) 13.85
  20. 20.Which is the greatest: 0.038, 0.5, 0.457, 0.52? (a) 0.038 (b) 0.5 (c) 0.457 (d) 0.52
  21. 21.Which is the greatest: 0.295, 0.3, 0.066, 0.33? (a) 0.295 (b) 0.3 (c) 0.066 (d) 0.33
  22. 22.Which is the greatest: 0.44, 0.399, 0.4, 0.043? (a) 0.44 (b) 0.399 (c) 0.4 (d) 0.043
  23. 23.What is the value of the digit 9 in 27.139? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  24. 24.Which is the greatest: 0.718, 0.84, 0.054, 0.8? (a) 0.718 (b) 0.84 (c) 0.054 (d) 0.8
  25. 25.What is the value of the digit 7 in 75.416? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  26. 26.8.67 + 2.1 = ? (a) 10.77 (b) 10.67 (c) 8.88 (d) 10.87
  27. 27.1.98 + 1.6 = ? (a) 2.14 (b) 3.58 (c) 3.48 (d) 3.68
  28. 28.What is the value of the digit 4 in 61.942? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  29. 29.4.44 + 1.1 = ? (a) 5.64 (b) 4.55 (c) 5.44 (d) 5.54
  30. 30.3.56 + 6.8 = ? (a) 10.36 (b) 4.24 (c) 10.26 (d) 10.46
  31. 31.What is the value of the digit 6 in 39.561? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  32. 32.5.79 + 2.9 = ? (a) 8.59 (b) 6.08 (c) 8.69 (d) 8.79
  33. 33.7.26 + 6.4 = ? (a) 7.9 (b) 13.76 (c) 13.66 (d) 13.56
  34. 34.Which is the smallest: 0.5, 0.087, 0.442, 0.51? (a) 0.5 (b) 0.087 (c) 0.442 (d) 0.51
  35. 35.7.54 + 7.5 = ? (a) 15.04 (b) 14.94 (c) 8.29 (d) 15.14
  36. 36.What is the value of the digit 9 in 26.591? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  37. 37.Which is the greatest: 0.63, 0.566, 0.6, 0.079? (a) 0.63 (b) 0.566 (c) 0.6 (d) 0.079
  38. 38.Which is the greatest: 0.148, 0.2, 0.068, 0.28? (a) 0.148 (b) 0.2 (c) 0.068 (d) 0.28
  39. 39.Which is the greatest: 0.29, 0.135, 0.2, 0.054? (a) 0.29 (b) 0.135 (c) 0.2 (d) 0.054
  40. 40.What is the value of the digit 7 in 24.971? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7

Answer key

  1. 0.28
  2. 0.003
  3. 0.072
  4. 12.05
  5. 0.8
  6. 9.63
  7. 0.32
  8. 10.71
  9. 0.039
  10. 3.71
  11. 0.63
  12. 0.009
  13. 7.74
  14. 0.9
  15. 13.08
  16. 0.088
  17. 0.72
  18. 0.08
  19. 13.75
  20. 0.52
  21. 0.33
  22. 0.44
  23. 0.009
  24. 0.84
  25. 70
  26. 10.77
  27. 3.58
  28. 0.04
  29. 5.54
  30. 10.36
  31. 0.06
  32. 8.69
  33. 13.66
  34. 0.087
  35. 15.04
  36. 0.09
  37. 0.63
  38. 0.28
  39. 0.29
  40. 0.07

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