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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 953 · 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 1 in 46.981? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  2. 2.What is the value of the digit 4 in 46.359? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  3. 3.4.29 + 8.6 = ? (a) 5.15 (b) 12.89 (c) 12.79 (d) 12.99
  4. 4.What is the value of the digit 8 in 81.634? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  5. 5.5.21 + 3.5 = ? (a) 8.71 (b) 8.81 (c) 8.61 (d) 5.56
  6. 6.5.18 + 1.3 = ? (a) 6.48 (b) 5.31 (c) 6.58 (d) 6.38
  7. 7.Which is the smallest: 0.063, 0.543, 0.6, 0.66? (a) 0.063 (b) 0.543 (c) 0.6 (d) 0.66
  8. 8.9.91 + 4.5 = ? (a) 10.36 (b) 14.51 (c) 14.41 (d) 14.31
  9. 9.9.65 + 5.1 = ? (a) 10.16 (b) 14.85 (c) 14.65 (d) 14.75
  10. 10.Which is the smallest: 0.539, 0.6, 0.072, 0.63? (a) 0.539 (b) 0.6 (c) 0.072 (d) 0.63
  11. 11.Which is the greatest: 0.2, 0.177, 0.23, 0.092? (a) 0.2 (b) 0.177 (c) 0.23 (d) 0.092
  12. 12.Which is the greatest: 0.39, 0.076, 0.233, 0.3? (a) 0.39 (b) 0.076 (c) 0.233 (d) 0.3
  13. 13.7.69 + 4.2 = ? (a) 11.79 (b) 11.89 (c) 11.99 (d) 8.11
  14. 14.4.27 + 1.8 = ? (a) 6.17 (b) 5.97 (c) 4.45 (d) 6.07
  15. 15.What is the value of the digit 3 in 52.631? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  16. 16.1.57 + 8.5 = ? (a) 10.07 (b) 9.97 (c) 10.17 (d) 2.42
  17. 17.2.29 + 2.6 = ? (a) 4.79 (b) 4.99 (c) 2.55 (d) 4.89
  18. 18.Which is the smallest: 0.6, 0.68, 0.515, 0.047? (a) 0.6 (b) 0.68 (c) 0.515 (d) 0.047
  19. 19.4.53 + 4.6 = ? (a) 9.13 (b) 9.23 (c) 9.03 (d) 4.99
  20. 20.What is the value of the digit 3 in 75.382? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  21. 21.Which is the greatest: 0.8, 0.82, 0.094, 0.787? (a) 0.8 (b) 0.82 (c) 0.094 (d) 0.787
  22. 22.5.39 + 4.9 = ? (a) 5.88 (b) 10.19 (c) 10.39 (d) 10.29
  23. 23.4.03 + 8.3 = ? (a) 12.23 (b) 12.43 (c) 12.33 (d) 4.86
  24. 24.6.84 + 5.1 = ? (a) 11.94 (b) 12.04 (c) 7.35 (d) 11.84
  25. 25.Which is the greatest: 0.723, 0.82, 0.8, 0.091? (a) 0.723 (b) 0.82 (c) 0.8 (d) 0.091
  26. 26.Which is the smallest: 0.8, 0.089, 0.781, 0.84? (a) 0.8 (b) 0.089 (c) 0.781 (d) 0.84
  27. 27.4.42 + 1.9 = ? (a) 6.42 (b) 4.61 (c) 6.22 (d) 6.32
  28. 28.6.92 + 2.8 = ? (a) 7.2 (b) 9.82 (c) 9.72 (d) 9.62
  29. 29.3.23 + 2.8 = ? (a) 6.13 (b) 6.03 (c) 5.93 (d) 3.51
  30. 30.7.33 + 4.9 = ? (a) 7.82 (b) 12.23 (c) 12.13 (d) 12.33
  31. 31.7.42 + 6.2 = ? (a) 8.04 (b) 13.72 (c) 13.52 (d) 13.62
  32. 32.What is the value of the digit 9 in 19.527? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  33. 33.What is the value of the digit 9 in 19.456? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  34. 34.Which is the greatest: 0.8, 0.85, 0.018, 0.754? (a) 0.8 (b) 0.85 (c) 0.018 (d) 0.754
  35. 35.Which is the smallest: 0.76, 0.7, 0.057, 0.692? (a) 0.76 (b) 0.7 (c) 0.057 (d) 0.692
  36. 36.What is the value of the digit 2 in 31.264? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  37. 37.5.21 + 1.9 = ? (a) 7.21 (b) 7.11 (c) 7.01 (d) 5.4
  38. 38.What is the value of the digit 9 in 59.623? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  39. 39.Which is the greatest: 0.4, 0.335, 0.47, 0.039? (a) 0.4 (b) 0.335 (c) 0.47 (d) 0.039
  40. 40.Which is the smallest: 0.254, 0.033, 0.31, 0.3? (a) 0.254 (b) 0.033 (c) 0.31 (d) 0.3

Answer key

  1. 0.001
  2. 40
  3. 12.89
  4. 80
  5. 8.71
  6. 6.48
  7. 0.063
  8. 14.41
  9. 14.75
  10. 0.072
  11. 0.23
  12. 0.39
  13. 11.89
  14. 6.07
  15. 0.03
  16. 10.07
  17. 4.89
  18. 0.047
  19. 9.13
  20. 0.3
  21. 0.82
  22. 10.29
  23. 12.33
  24. 11.94
  25. 0.82
  26. 0.089
  27. 6.32
  28. 9.72
  29. 6.03
  30. 12.23
  31. 13.62
  32. 9
  33. 9
  34. 0.85
  35. 0.057
  36. 0.2
  37. 7.11
  38. 9
  39. 0.47
  40. 0.033

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