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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 435 · 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: 0.012, 0.8, 0.87, 0.733? (a) 0.012 (b) 0.8 (c) 0.87 (d) 0.733
  2. 2.What is the value of the digit 6 in 12.386? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  3. 3.What is the value of the digit 3 in 64.738? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  4. 4.3.29 + 2.3 = ? (a) 5.69 (b) 5.59 (c) 5.49 (d) 3.52
  5. 5.5.51 + 9.1 = ? (a) 14.71 (b) 6.42 (c) 14.51 (d) 14.61
  6. 6.Which is the greatest: 0.4, 0.44, 0.057, 0.378? (a) 0.4 (b) 0.44 (c) 0.057 (d) 0.378
  7. 7.Which is the greatest: 0.096, 0.7, 0.75, 0.677? (a) 0.096 (b) 0.7 (c) 0.75 (d) 0.677
  8. 8.What is the value of the digit 5 in 58.134? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  9. 9.7.78 + 7.7 = ? (a) 15.48 (b) 15.58 (c) 8.55 (d) 15.38
  10. 10.Which is the smallest: 0.8, 0.792, 0.81, 0.051? (a) 0.8 (b) 0.792 (c) 0.81 (d) 0.051
  11. 11.7.98 + 5.3 = ? (a) 13.38 (b) 13.28 (c) 13.18 (d) 8.51
  12. 12.What is the value of the digit 4 in 67.148? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  13. 13.What is the value of the digit 1 in 62.571? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  14. 14.Which is the greatest: 0.063, 0.3, 0.237, 0.38? (a) 0.063 (b) 0.3 (c) 0.237 (d) 0.38
  15. 15.Which is the smallest: 0.72, 0.634, 0.095, 0.7? (a) 0.72 (b) 0.634 (c) 0.095 (d) 0.7
  16. 16.5.58 + 8.5 = ? (a) 14.08 (b) 14.18 (c) 13.98 (d) 6.43
  17. 17.Which is the smallest: 0.397, 0.43, 0.039, 0.4? (a) 0.397 (b) 0.43 (c) 0.039 (d) 0.4
  18. 18.Which is the greatest: 0.25, 0.047, 0.2, 0.161? (a) 0.25 (b) 0.047 (c) 0.2 (d) 0.161
  19. 19.Which is the greatest: 0.21, 0.2, 0.137, 0.029? (a) 0.21 (b) 0.2 (c) 0.137 (d) 0.029
  20. 20.Which is the smallest: 0.42, 0.4, 0.083, 0.329? (a) 0.42 (b) 0.4 (c) 0.083 (d) 0.329
  21. 21.3.25 + 5.1 = ? (a) 3.76 (b) 8.35 (c) 8.25 (d) 8.45
  22. 22.What is the value of the digit 6 in 45.619? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  23. 23.Which is the smallest: 0.2, 0.088, 0.192, 0.23? (a) 0.2 (b) 0.088 (c) 0.192 (d) 0.23
  24. 24.Which is the greatest: 0.422, 0.054, 0.5, 0.56? (a) 0.422 (b) 0.054 (c) 0.5 (d) 0.56
  25. 25.What is the value of the digit 6 in 23.846? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  26. 26.What is the value of the digit 8 in 85.432? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  27. 27.What is the value of the digit 7 in 87.956? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  28. 28.2.28 + 8.2 = ? (a) 3.1 (b) 10.48 (c) 10.58 (d) 10.38
  29. 29.What is the value of the digit 3 in 36.859? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  30. 30.Which is the smallest: 0.42, 0.393, 0.4, 0.078? (a) 0.42 (b) 0.393 (c) 0.4 (d) 0.078
  31. 31.5.91 + 8.2 = ? (a) 6.73 (b) 14.21 (c) 14.01 (d) 14.11
  32. 32.9.96 + 6.7 = ? (a) 10.63 (b) 16.66 (c) 16.56 (d) 16.76
  33. 33.3.74 + 3.2 = ? (a) 6.84 (b) 4.06 (c) 6.94 (d) 7.04
  34. 34.What is the value of the digit 1 in 13.482? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  35. 35.Which is the smallest: 0.33, 0.049, 0.3, 0.211? (a) 0.33 (b) 0.049 (c) 0.3 (d) 0.211
  36. 36.Which is the greatest: 0.262, 0.3, 0.38, 0.045? (a) 0.262 (b) 0.3 (c) 0.38 (d) 0.045
  37. 37.3.11 + 3.8 = ? (a) 7.01 (b) 6.91 (c) 6.81 (d) 3.49
  38. 38.What is the value of the digit 1 in 69.341? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  39. 39.What is the value of the digit 1 in 87.129? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  40. 40.Which is the smallest: 0.017, 0.469, 0.53, 0.5? (a) 0.017 (b) 0.469 (c) 0.53 (d) 0.5

Answer key

  1. 0.87
  2. 0.006
  3. 0.03
  4. 5.59
  5. 14.61
  6. 0.44
  7. 0.75
  8. 50
  9. 15.48
  10. 0.051
  11. 13.28
  12. 0.04
  13. 0.001
  14. 0.38
  15. 0.095
  16. 14.08
  17. 0.039
  18. 0.25
  19. 0.21
  20. 0.083
  21. 8.35
  22. 0.6
  23. 0.088
  24. 0.56
  25. 0.006
  26. 80
  27. 7
  28. 10.48
  29. 30
  30. 0.078
  31. 14.11
  32. 16.66
  33. 6.94
  34. 10
  35. 0.049
  36. 0.38
  37. 6.91
  38. 0.001
  39. 0.1
  40. 0.017

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