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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 786 · 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 greatest: 0.776, 0.059, 0.89, 0.8? (a) 0.776 (b) 0.059 (c) 0.89 (d) 0.8
  2. 2.What is the value of the digit 4 in 59.347? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  3. 3.Which is the greatest: 0.6, 0.65, 0.582, 0.021? (a) 0.6 (b) 0.65 (c) 0.582 (d) 0.021
  4. 4.What is the value of the digit 3 in 34.896? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  5. 5.Which is the smallest: 0.634, 0.7, 0.071, 0.75? (a) 0.634 (b) 0.7 (c) 0.071 (d) 0.75
  6. 6.Which is the greatest: 0.178, 0.26, 0.2, 0.024? (a) 0.178 (b) 0.26 (c) 0.2 (d) 0.024
  7. 7.9.64 + 2.1 = ? (a) 9.85 (b) 11.84 (c) 11.74 (d) 11.64
  8. 8.8.33 + 1.4 = ? (a) 9.63 (b) 8.47 (c) 9.73 (d) 9.83
  9. 9.Which is the smallest: 0.143, 0.26, 0.2, 0.014? (a) 0.143 (b) 0.26 (c) 0.2 (d) 0.014
  10. 10.1.25 + 7.1 = ? (a) 1.96 (b) 8.35 (c) 8.45 (d) 8.25
  11. 11.What is the value of the digit 5 in 65.982? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  12. 12.Which is the smallest: 0.39, 0.283, 0.3, 0.093? (a) 0.39 (b) 0.283 (c) 0.3 (d) 0.093
  13. 13.9.25 + 9.7 = ? (a) 18.85 (b) 10.22 (c) 18.95 (d) 19.05
  14. 14.Which is the smallest: 0.7, 0.72, 0.024, 0.688? (a) 0.7 (b) 0.72 (c) 0.024 (d) 0.688
  15. 15.What is the value of the digit 5 in 58.142? (a) 50 (b) 5 (c) 0.05 (d) 0.5
  16. 16.What is the value of the digit 2 in 21.967? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  17. 17.What is the value of the digit 3 in 26.354? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  18. 18.4.21 + 7.9 = ? (a) 12.21 (b) 5 (c) 12.11 (d) 12.01
  19. 19.4.28 + 4.9 = ? (a) 9.08 (b) 9.28 (c) 4.77 (d) 9.18
  20. 20.What is the value of the digit 5 in 25.983? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  21. 21.Which is the greatest: 0.071, 0.8, 0.88, 0.788? (a) 0.071 (b) 0.8 (c) 0.88 (d) 0.788
  22. 22.6.03 + 8.1 = ? (a) 14.13 (b) 6.84 (c) 14.23 (d) 14.03
  23. 23.What is the value of the digit 4 in 45.296? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  24. 24.Which is the smallest: 0.017, 0.3, 0.36, 0.215? (a) 0.017 (b) 0.3 (c) 0.36 (d) 0.215
  25. 25.4.28 + 5.1 = ? (a) 9.38 (b) 9.28 (c) 4.79 (d) 9.48
  26. 26.3.32 + 9.4 = ? (a) 12.72 (b) 4.26 (c) 12.82 (d) 12.62
  27. 27.4.43 + 1.2 = ? (a) 5.53 (b) 5.63 (c) 4.55 (d) 5.73
  28. 28.8.33 + 5.3 = ? (a) 8.86 (b) 13.73 (c) 13.63 (d) 13.53
  29. 29.6.59 + 9.6 = ? (a) 16.19 (b) 16.09 (c) 7.55 (d) 16.29
  30. 30.What is the value of the digit 6 in 24.169? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  31. 31.3.77 + 1.7 = ? (a) 5.47 (b) 5.37 (c) 3.94 (d) 5.57
  32. 32.3.17 + 1.5 = ? (a) 4.67 (b) 4.77 (c) 4.57 (d) 3.32
  33. 33.What is the value of the digit 7 in 37.169? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  34. 34.Which is the smallest: 0.278, 0.3, 0.025, 0.38? (a) 0.278 (b) 0.3 (c) 0.025 (d) 0.38
  35. 35.3.11 + 3.2 = ? (a) 3.43 (b) 6.31 (c) 6.41 (d) 6.21
  36. 36.2.99 + 6.4 = ? (a) 9.29 (b) 3.63 (c) 9.49 (d) 9.39
  37. 37.Which is the greatest: 0.2, 0.075, 0.28, 0.149? (a) 0.2 (b) 0.075 (c) 0.28 (d) 0.149
  38. 38.6.91 + 3.6 = ? (a) 7.27 (b) 10.41 (c) 10.61 (d) 10.51
  39. 39.Which is the smallest: 0.351, 0.49, 0.053, 0.4? (a) 0.351 (b) 0.49 (c) 0.053 (d) 0.4
  40. 40.Which is the smallest: 0.38, 0.034, 0.3, 0.267? (a) 0.38 (b) 0.034 (c) 0.3 (d) 0.267

Answer key

  1. 0.89
  2. 0.04
  3. 0.65
  4. 30
  5. 0.071
  6. 0.26
  7. 11.74
  8. 9.73
  9. 0.014
  10. 8.35
  11. 5
  12. 0.093
  13. 18.95
  14. 0.024
  15. 50
  16. 20
  17. 0.3
  18. 12.11
  19. 9.18
  20. 5
  21. 0.88
  22. 14.13
  23. 40
  24. 0.017
  25. 9.38
  26. 12.72
  27. 5.63
  28. 13.63
  29. 16.19
  30. 0.06
  31. 5.47
  32. 4.67
  33. 7
  34. 0.025
  35. 6.31
  36. 9.39
  37. 0.28
  38. 10.51
  39. 0.053
  40. 0.034

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