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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 196 · 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. 1.3.02 + 6.1 = ? (a) 9.12 (b) 9.02 (c) 9.22 (d) 3.63
  2. 2.Which is the greatest: 0.5, 0.481, 0.093, 0.51? (a) 0.5 (b) 0.481 (c) 0.093 (d) 0.51
  3. 3.Which is the greatest: 0.5, 0.033, 0.437, 0.51? (a) 0.5 (b) 0.033 (c) 0.437 (d) 0.51
  4. 4.What is the value of the digit 5 in 96.753? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  5. 5.Which is the greatest: 0.688, 0.042, 0.72, 0.7? (a) 0.688 (b) 0.042 (c) 0.72 (d) 0.7
  6. 6.Which is the smallest: 0.526, 0.034, 0.62, 0.6? (a) 0.526 (b) 0.034 (c) 0.62 (d) 0.6
  7. 7.Which is the greatest: 0.2, 0.061, 0.25, 0.174? (a) 0.2 (b) 0.061 (c) 0.25 (d) 0.174
  8. 8.Which is the smallest: 0.499, 0.5, 0.58, 0.076? (a) 0.499 (b) 0.5 (c) 0.58 (d) 0.076
  9. 9.Which is the greatest: 0.87, 0.015, 0.8, 0.727? (a) 0.87 (b) 0.015 (c) 0.8 (d) 0.727
  10. 10.Which is the greatest: 0.88, 0.065, 0.718, 0.8? (a) 0.88 (b) 0.065 (c) 0.718 (d) 0.8
  11. 11.4.91 + 6.1 = ? (a) 10.91 (b) 5.52 (c) 11.11 (d) 11.01
  12. 12.What is the value of the digit 4 in 26.419? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  13. 13.8.72 + 4.8 = ? (a) 9.2 (b) 13.42 (c) 13.62 (d) 13.52
  14. 14.6.11 + 3.8 = ? (a) 10.01 (b) 6.49 (c) 9.81 (d) 9.91
  15. 15.2.84 + 6.7 = ? (a) 9.54 (b) 9.44 (c) 3.51 (d) 9.64
  16. 16.Which is the greatest: 0.6, 0.67, 0.523, 0.085? (a) 0.6 (b) 0.67 (c) 0.523 (d) 0.085
  17. 17.Which is the greatest: 0.022, 0.72, 0.7, 0.686? (a) 0.022 (b) 0.72 (c) 0.7 (d) 0.686
  18. 18.Which is the smallest: 0.111, 0.2, 0.27, 0.049? (a) 0.111 (b) 0.2 (c) 0.27 (d) 0.049
  19. 19.Which is the greatest: 0.644, 0.037, 0.7, 0.72? (a) 0.644 (b) 0.037 (c) 0.7 (d) 0.72
  20. 20.4.05 + 8.5 = ? (a) 12.45 (b) 4.9 (c) 12.65 (d) 12.55
  21. 21.What is the value of the digit 5 in 54.963? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  22. 22.7.42 + 7.7 = ? (a) 15.22 (b) 15.02 (c) 8.19 (d) 15.12
  23. 23.3.25 + 8.8 = ? (a) 12.05 (b) 4.13 (c) 12.15 (d) 11.95
  24. 24.Which is the greatest: 0.777, 0.8, 0.037, 0.83? (a) 0.777 (b) 0.8 (c) 0.037 (d) 0.83
  25. 25.5.73 + 1.5 = ? (a) 7.33 (b) 7.13 (c) 5.88 (d) 7.23
  26. 26.What is the value of the digit 8 in 58.497? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  27. 27.What is the value of the digit 4 in 35.478? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  28. 28.6.35 + 2.9 = ? (a) 9.25 (b) 6.64 (c) 9.35 (d) 9.15
  29. 29.What is the value of the digit 4 in 49.265? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  30. 30.Which is the greatest: 0.052, 0.497, 0.5, 0.59? (a) 0.052 (b) 0.497 (c) 0.5 (d) 0.59
  31. 31.What is the value of the digit 7 in 13.472? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  32. 32.6.51 + 1.8 = ? (a) 8.41 (b) 8.31 (c) 6.69 (d) 8.21
  33. 33.8.85 + 4.3 = ? (a) 13.25 (b) 9.28 (c) 13.15 (d) 13.05
  34. 34.What is the value of the digit 8 in 38.516? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  35. 35.1.33 + 3.4 = ? (a) 1.67 (b) 4.73 (c) 4.83 (d) 4.63
  36. 36.What is the value of the digit 8 in 28.974? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  37. 37.Which is the smallest: 0.83, 0.029, 0.726, 0.8? (a) 0.83 (b) 0.029 (c) 0.726 (d) 0.8
  38. 38.What is the value of the digit 9 in 29.673? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  39. 39.Which is the smallest: 0.47, 0.049, 0.338, 0.4? (a) 0.47 (b) 0.049 (c) 0.338 (d) 0.4
  40. 40.4.82 + 8.3 = ? (a) 13.22 (b) 13.02 (c) 13.12 (d) 5.65

Answer key

  1. 9.12
  2. 0.51
  3. 0.51
  4. 0.05
  5. 0.72
  6. 0.034
  7. 0.25
  8. 0.076
  9. 0.87
  10. 0.88
  11. 11.01
  12. 0.4
  13. 13.52
  14. 9.91
  15. 9.54
  16. 0.67
  17. 0.72
  18. 0.049
  19. 0.72
  20. 12.55
  21. 50
  22. 15.12
  23. 12.05
  24. 0.83
  25. 7.23
  26. 8
  27. 0.4
  28. 9.25
  29. 40
  30. 0.59
  31. 0.07
  32. 8.31
  33. 13.15
  34. 8
  35. 4.73
  36. 8
  37. 0.029
  38. 9
  39. 0.049
  40. 13.12

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