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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 264 · 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. 1.4.64 + 8.6 = ? (a) 13.24 (b) 13.34 (c) 5.5 (d) 13.14
  2. 2.What is the value of the digit 4 in 48.275? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  3. 3.Which is the smallest: 0.4, 0.054, 0.46, 0.367? (a) 0.4 (b) 0.054 (c) 0.46 (d) 0.367
  4. 4.6.87 + 8.2 = ? (a) 15.17 (b) 7.69 (c) 14.97 (d) 15.07
  5. 5.What is the value of the digit 4 in 53.724? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  6. 6.What is the value of the digit 4 in 68.945? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  7. 7.Which is the greatest: 0.3, 0.265, 0.34, 0.026? (a) 0.3 (b) 0.265 (c) 0.34 (d) 0.026
  8. 8.Which is the greatest: 0.463, 0.049, 0.5, 0.58? (a) 0.463 (b) 0.049 (c) 0.5 (d) 0.58
  9. 9.What is the value of the digit 4 in 65.341? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  10. 10.2.38 + 7.7 = ? (a) 10.08 (b) 3.15 (c) 10.18 (d) 9.98
  11. 11.What is the value of the digit 4 in 93.164? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  12. 12.2.81 + 9.1 = ? (a) 12.01 (b) 11.81 (c) 11.91 (d) 3.72
  13. 13.Which is the greatest: 0.059, 0.6, 0.65, 0.555? (a) 0.059 (b) 0.6 (c) 0.65 (d) 0.555
  14. 14.9.93 + 9.9 = ? (a) 10.92 (b) 19.83 (c) 19.73 (d) 19.93
  15. 15.What is the value of the digit 8 in 69.148? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  16. 16.Which is the smallest: 0.033, 0.218, 0.3, 0.32? (a) 0.033 (b) 0.218 (c) 0.3 (d) 0.32
  17. 17.2.45 + 4.8 = ? (a) 7.15 (b) 7.35 (c) 2.93 (d) 7.25
  18. 18.Which is the greatest: 0.2, 0.146, 0.22, 0.019? (a) 0.2 (b) 0.146 (c) 0.22 (d) 0.019
  19. 19.What is the value of the digit 2 in 24.639? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  20. 20.3.24 + 1.4 = ? (a) 4.74 (b) 4.64 (c) 3.38 (d) 4.54
  21. 21.Which is the smallest: 0.68, 0.092, 0.587, 0.6? (a) 0.68 (b) 0.092 (c) 0.587 (d) 0.6
  22. 22.What is the value of the digit 8 in 81.725? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  23. 23.Which is the smallest: 0.6, 0.64, 0.538, 0.024? (a) 0.6 (b) 0.64 (c) 0.538 (d) 0.024
  24. 24.Which is the greatest: 0.035, 0.3, 0.228, 0.35? (a) 0.035 (b) 0.3 (c) 0.228 (d) 0.35
  25. 25.8.88 + 3.5 = ? (a) 12.28 (b) 9.23 (c) 12.48 (d) 12.38
  26. 26.What is the value of the digit 7 in 74.921? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  27. 27.What is the value of the digit 6 in 28.316? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  28. 28.7.31 + 8.7 = ? (a) 16.01 (b) 16.11 (c) 15.91 (d) 8.18
  29. 29.What is the value of the digit 2 in 12.563? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  30. 30.What is the value of the digit 5 in 75.326? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  31. 31.Which is the smallest: 0.32, 0.274, 0.034, 0.3? (a) 0.32 (b) 0.274 (c) 0.034 (d) 0.3
  32. 32.4.61 + 3.8 = ? (a) 4.99 (b) 8.51 (c) 8.31 (d) 8.41
  33. 33.What is the value of the digit 7 in 29.876? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  34. 34.1.48 + 5.8 = ? (a) 7.28 (b) 2.06 (c) 7.18 (d) 7.38
  35. 35.Which is the greatest: 0.116, 0.2, 0.28, 0.036? (a) 0.116 (b) 0.2 (c) 0.28 (d) 0.036
  36. 36.Which is the smallest: 0.056, 0.5, 0.57, 0.433? (a) 0.056 (b) 0.5 (c) 0.57 (d) 0.433
  37. 37.3.92 + 7.8 = ? (a) 4.7 (b) 11.62 (c) 11.82 (d) 11.72
  38. 38.Which is the greatest: 0.43, 0.073, 0.381, 0.4? (a) 0.43 (b) 0.073 (c) 0.381 (d) 0.4
  39. 39.4.58 + 7.6 = ? (a) 5.34 (b) 12.08 (c) 12.18 (d) 12.28
  40. 40.Which is the greatest: 0.39, 0.291, 0.059, 0.3? (a) 0.39 (b) 0.291 (c) 0.059 (d) 0.3

Answer key

  1. 13.24
  2. 40
  3. 0.054
  4. 15.07
  5. 0.004
  6. 0.04
  7. 0.34
  8. 0.58
  9. 0.04
  10. 10.08
  11. 0.004
  12. 11.91
  13. 0.65
  14. 19.83
  15. 0.008
  16. 0.033
  17. 7.25
  18. 0.22
  19. 20
  20. 4.64
  21. 0.092
  22. 80
  23. 0.024
  24. 0.35
  25. 12.38
  26. 70
  27. 0.006
  28. 16.01
  29. 2
  30. 5
  31. 0.034
  32. 8.41
  33. 0.07
  34. 7.28
  35. 0.28
  36. 0.056
  37. 11.72
  38. 0.43
  39. 12.18
  40. 0.39

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