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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 906 · 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 7 in 51.793? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  2. 2.Which is the smallest: 0.6, 0.62, 0.586, 0.099? (a) 0.6 (b) 0.62 (c) 0.586 (d) 0.099
  3. 3.What is the value of the digit 7 in 75.649? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  4. 4.What is the value of the digit 3 in 24.173? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  5. 5.What is the value of the digit 1 in 27.931? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  6. 6.9.85 + 3.3 = ? (a) 13.25 (b) 10.18 (c) 13.15 (d) 13.05
  7. 7.What is the value of the digit 4 in 87.249? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  8. 8.3.52 + 8.1 = ? (a) 11.52 (b) 4.33 (c) 11.72 (d) 11.62
  9. 9.Which is the greatest: 0.4, 0.49, 0.051, 0.316? (a) 0.4 (b) 0.49 (c) 0.051 (d) 0.316
  10. 10.What is the value of the digit 9 in 54.297? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  11. 11.What is the value of the digit 2 in 45.268? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  12. 12.What is the value of the digit 2 in 13.526? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  13. 13.4.23 + 6.7 = ? (a) 4.9 (b) 10.83 (c) 11.03 (d) 10.93
  14. 14.Which is the greatest: 0.2, 0.182, 0.065, 0.21? (a) 0.2 (b) 0.182 (c) 0.065 (d) 0.21
  15. 15.What is the value of the digit 9 in 52.946? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  16. 16.2.03 + 1.9 = ? (a) 3.83 (b) 4.03 (c) 3.93 (d) 2.22
  17. 17.Which is the smallest: 0.224, 0.057, 0.3, 0.35? (a) 0.224 (b) 0.057 (c) 0.3 (d) 0.35
  18. 18.Which is the smallest: 0.262, 0.013, 0.3, 0.38? (a) 0.262 (b) 0.013 (c) 0.3 (d) 0.38
  19. 19.8.57 + 6.4 = ? (a) 9.21 (b) 14.87 (c) 14.97 (d) 15.07
  20. 20.Which is the smallest: 0.042, 0.31, 0.3, 0.228? (a) 0.042 (b) 0.31 (c) 0.3 (d) 0.228
  21. 21.Which is the smallest: 0.078, 0.3, 0.33, 0.248? (a) 0.078 (b) 0.3 (c) 0.33 (d) 0.248
  22. 22.1.99 + 3.3 = ? (a) 5.19 (b) 5.39 (c) 2.32 (d) 5.29
  23. 23.4.98 + 1.6 = ? (a) 6.68 (b) 6.58 (c) 5.14 (d) 6.48
  24. 24.Which is the greatest: 0.47, 0.032, 0.378, 0.4? (a) 0.47 (b) 0.032 (c) 0.378 (d) 0.4
  25. 25.Which is the smallest: 0.022, 0.226, 0.3, 0.33? (a) 0.022 (b) 0.226 (c) 0.3 (d) 0.33
  26. 26.7.27 + 7.2 = ? (a) 7.99 (b) 14.37 (c) 14.47 (d) 14.57
  27. 27.7.98 + 7.3 = ? (a) 15.28 (b) 15.38 (c) 15.18 (d) 8.71
  28. 28.8.02 + 3.2 = ? (a) 11.12 (b) 8.34 (c) 11.22 (d) 11.32
  29. 29.5.99 + 8.1 = ? (a) 14.19 (b) 6.8 (c) 14.09 (d) 13.99
  30. 30.Which is the greatest: 0.135, 0.27, 0.057, 0.2? (a) 0.135 (b) 0.27 (c) 0.057 (d) 0.2
  31. 31.What is the value of the digit 7 in 82.479? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  32. 32.What is the value of the digit 4 in 34.916? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  33. 33.9.39 + 1.1 = ? (a) 10.59 (b) 10.49 (c) 10.39 (d) 9.5
  34. 34.What is the value of the digit 9 in 51.972? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  35. 35.Which is the greatest: 0.6, 0.511, 0.034, 0.68? (a) 0.6 (b) 0.511 (c) 0.034 (d) 0.68
  36. 36.Which is the greatest: 0.053, 0.3, 0.254, 0.32? (a) 0.053 (b) 0.3 (c) 0.254 (d) 0.32
  37. 37.4.42 + 4.8 = ? (a) 4.9 (b) 9.12 (c) 9.22 (d) 9.32
  38. 38.What is the value of the digit 3 in 93.481? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  39. 39.1.82 + 2.9 = ? (a) 2.11 (b) 4.72 (c) 4.62 (d) 4.82
  40. 40.What is the value of the digit 7 in 74.518? (a) 0.7 (b) 7 (c) 0.07 (d) 70

Answer key

  1. 0.7
  2. 0.099
  3. 70
  4. 0.003
  5. 0.001
  6. 13.15
  7. 0.04
  8. 11.62
  9. 0.49
  10. 0.09
  11. 0.2
  12. 0.02
  13. 10.93
  14. 0.21
  15. 0.9
  16. 3.93
  17. 0.057
  18. 0.013
  19. 14.97
  20. 0.042
  21. 0.078
  22. 5.29
  23. 6.58
  24. 0.47
  25. 0.022
  26. 14.47
  27. 15.28
  28. 11.22
  29. 14.09
  30. 0.27
  31. 0.07
  32. 4
  33. 10.49
  34. 0.9
  35. 0.68
  36. 0.32
  37. 9.22
  38. 3
  39. 4.72
  40. 70

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