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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 132 · 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 smallest: 0.033, 0.59, 0.473, 0.5? (a) 0.033 (b) 0.59 (c) 0.473 (d) 0.5
  2. 2.What is the value of the digit 7 in 78.314? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  3. 3.Which is the smallest: 0.28, 0.076, 0.121, 0.2? (a) 0.28 (b) 0.076 (c) 0.121 (d) 0.2
  4. 4.What is the value of the digit 2 in 62.534? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  5. 5.5.17 + 2.1 = ? (a) 7.17 (b) 7.27 (c) 7.37 (d) 5.38
  6. 6.4.79 + 5.5 = ? (a) 10.19 (b) 10.39 (c) 5.34 (d) 10.29
  7. 7.7.48 + 3.5 = ? (a) 7.83 (b) 10.88 (c) 11.08 (d) 10.98
  8. 8.2.96 + 1.3 = ? (a) 4.16 (b) 3.09 (c) 4.36 (d) 4.26
  9. 9.Which is the greatest: 0.5, 0.56, 0.062, 0.444? (a) 0.5 (b) 0.56 (c) 0.062 (d) 0.444
  10. 10.What is the value of the digit 9 in 92.673? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  11. 11.2.61 + 1.1 = ? (a) 3.81 (b) 2.72 (c) 3.71 (d) 3.61
  12. 12.What is the value of the digit 3 in 43.698? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  13. 13.7.81 + 4.6 = ? (a) 12.31 (b) 8.27 (c) 12.41 (d) 12.51
  14. 14.What is the value of the digit 2 in 21.845? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  15. 15.Which is the greatest: 0.41, 0.4, 0.097, 0.327? (a) 0.41 (b) 0.4 (c) 0.097 (d) 0.327
  16. 16.Which is the greatest: 0.42, 0.012, 0.4, 0.316? (a) 0.42 (b) 0.012 (c) 0.4 (d) 0.316
  17. 17.What is the value of the digit 8 in 23.698? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  18. 18.Which is the greatest: 0.35, 0.263, 0.097, 0.3? (a) 0.35 (b) 0.263 (c) 0.097 (d) 0.3
  19. 19.2.05 + 3.7 = ? (a) 5.65 (b) 2.42 (c) 5.75 (d) 5.85
  20. 20.Which is the greatest: 0.3, 0.32, 0.022, 0.281? (a) 0.3 (b) 0.32 (c) 0.022 (d) 0.281
  21. 21.1.08 + 7.9 = ? (a) 9.08 (b) 1.87 (c) 8.88 (d) 8.98
  22. 22.2.88 + 3.2 = ? (a) 3.2 (b) 6.18 (c) 5.98 (d) 6.08
  23. 23.Which is the smallest: 0.777, 0.8, 0.83, 0.059? (a) 0.777 (b) 0.8 (c) 0.83 (d) 0.059
  24. 24.What is the value of the digit 2 in 29.317? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  25. 25.What is the value of the digit 9 in 29.831? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  26. 26.5.43 + 2.3 = ? (a) 5.66 (b) 7.73 (c) 7.63 (d) 7.83
  27. 27.3.08 + 8.6 = ? (a) 11.68 (b) 3.94 (c) 11.58 (d) 11.78
  28. 28.1.61 + 4.1 = ? (a) 2.02 (b) 5.61 (c) 5.71 (d) 5.81
  29. 29.What is the value of the digit 3 in 53.691? (a) 0.03 (b) 0.3 (c) 3 (d) 30
  30. 30.6.08 + 7.7 = ? (a) 13.88 (b) 13.68 (c) 13.78 (d) 6.85
  31. 31.Which is the smallest: 0.613, 0.75, 0.087, 0.7? (a) 0.613 (b) 0.75 (c) 0.087 (d) 0.7
  32. 32.9.11 + 9.4 = ? (a) 10.05 (b) 18.41 (c) 18.61 (d) 18.51
  33. 33.2.63 + 7.7 = ? (a) 10.33 (b) 3.4 (c) 10.43 (d) 10.23
  34. 34.What is the value of the digit 1 in 31.985? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  35. 35.What is the value of the digit 3 in 35.261? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  36. 36.3.95 + 8.2 = ? (a) 4.77 (b) 12.25 (c) 12.15 (d) 12.05
  37. 37.What is the value of the digit 4 in 24.975? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  38. 38.5.04 + 3.2 = ? (a) 8.24 (b) 8.14 (c) 8.34 (d) 5.36
  39. 39.1.91 + 8.3 = ? (a) 10.21 (b) 2.74 (c) 10.11 (d) 10.31
  40. 40.3.98 + 5.1 = ? (a) 9.08 (b) 8.98 (c) 4.49 (d) 9.18

Answer key

  1. 0.033
  2. 70
  3. 0.076
  4. 2
  5. 7.27
  6. 10.29
  7. 10.98
  8. 4.26
  9. 0.56
  10. 90
  11. 3.71
  12. 3
  13. 12.41
  14. 20
  15. 0.41
  16. 0.42
  17. 0.008
  18. 0.35
  19. 5.75
  20. 0.32
  21. 8.98
  22. 6.08
  23. 0.059
  24. 20
  25. 9
  26. 7.73
  27. 11.68
  28. 5.71
  29. 3
  30. 13.78
  31. 0.087
  32. 18.51
  33. 10.33
  34. 1
  35. 30
  36. 12.15
  37. 4
  38. 8.24
  39. 10.21
  40. 9.08

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