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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 368 · 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 + 2.1 = ? (a) 4.85 (b) 6.74 (c) 6.84 (d) 6.64
  2. 2.What is the value of the digit 3 in 46.231? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  3. 3.3.99 + 4.2 = ? (a) 8.29 (b) 4.41 (c) 8.19 (d) 8.09
  4. 4.What is the value of the digit 4 in 41.376? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  5. 5.Which is the greatest: 0.52, 0.476, 0.5, 0.046? (a) 0.52 (b) 0.476 (c) 0.5 (d) 0.046
  6. 6.9.35 + 7.8 = ? (a) 17.05 (b) 17.15 (c) 10.13 (d) 17.25
  7. 7.What is the value of the digit 7 in 57.623? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  8. 8.Which is the smallest: 0.054, 0.36, 0.3, 0.275? (a) 0.054 (b) 0.36 (c) 0.3 (d) 0.275
  9. 9.What is the value of the digit 4 in 98.324? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  10. 10.5.45 + 7.5 = ? (a) 13.05 (b) 12.95 (c) 12.85 (d) 6.2
  11. 11.Which is the smallest: 0.699, 0.71, 0.7, 0.093? (a) 0.699 (b) 0.71 (c) 0.7 (d) 0.093
  12. 12.2.47 + 6.1 = ? (a) 3.08 (b) 8.67 (c) 8.57 (d) 8.47
  13. 13.3.12 + 3.8 = ? (a) 7.02 (b) 6.82 (c) 3.5 (d) 6.92
  14. 14.Which is the smallest: 0.4, 0.42, 0.029, 0.353? (a) 0.4 (b) 0.42 (c) 0.029 (d) 0.353
  15. 15.What is the value of the digit 1 in 91.382? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  16. 16.4.88 + 5.1 = ? (a) 5.39 (b) 10.08 (c) 9.98 (d) 9.88
  17. 17.What is the value of the digit 6 in 92.681? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  18. 18.What is the value of the digit 2 in 82.546? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  19. 19.8.52 + 3.2 = ? (a) 11.82 (b) 11.62 (c) 8.84 (d) 11.72
  20. 20.7.66 + 6.3 = ? (a) 13.86 (b) 14.06 (c) 13.96 (d) 8.29
  21. 21.What is the value of the digit 3 in 27.435? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  22. 22.What is the value of the digit 3 in 86.237? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  23. 23.What is the value of the digit 8 in 48.351? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  24. 24.What is the value of the digit 4 in 62.347? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  25. 25.What is the value of the digit 1 in 16.537? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  26. 26.Which is the greatest: 0.6, 0.64, 0.536, 0.025? (a) 0.6 (b) 0.64 (c) 0.536 (d) 0.025
  27. 27.What is the value of the digit 7 in 37.825? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  28. 28.6.99 + 1.6 = ? (a) 8.69 (b) 7.15 (c) 8.49 (d) 8.59
  29. 29.Which is the greatest: 0.235, 0.3, 0.39, 0.015? (a) 0.235 (b) 0.3 (c) 0.39 (d) 0.015
  30. 30.What is the value of the digit 7 in 74.569? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  31. 31.7.91 + 6.7 = ? (a) 8.58 (b) 14.51 (c) 14.71 (d) 14.61
  32. 32.3.33 + 9.6 = ? (a) 4.29 (b) 13.03 (c) 12.93 (d) 12.83
  33. 33.7.78 + 7.9 = ? (a) 15.78 (b) 15.58 (c) 15.68 (d) 8.57
  34. 34.4.72 + 4.1 = ? (a) 8.92 (b) 8.72 (c) 5.13 (d) 8.82
  35. 35.What is the value of the digit 1 in 45.123? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  36. 36.3.03 + 5.4 = ? (a) 8.43 (b) 8.53 (c) 8.33 (d) 3.57
  37. 37.2.18 + 7.3 = ? (a) 9.58 (b) 9.38 (c) 2.91 (d) 9.48
  38. 38.Which is the smallest: 0.4, 0.065, 0.356, 0.48? (a) 0.4 (b) 0.065 (c) 0.356 (d) 0.48
  39. 39.What is the value of the digit 8 in 46.835? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  40. 40.What is the value of the digit 5 in 53.726? (a) 50 (b) 0.05 (c) 5 (d) 0.5

Answer key

  1. 6.74
  2. 0.03
  3. 8.19
  4. 40
  5. 0.52
  6. 17.15
  7. 7
  8. 0.054
  9. 0.004
  10. 12.95
  11. 0.093
  12. 8.57
  13. 6.92
  14. 0.029
  15. 1
  16. 9.98
  17. 0.6
  18. 2
  19. 11.72
  20. 13.96
  21. 0.03
  22. 0.03
  23. 8
  24. 0.04
  25. 10
  26. 0.64
  27. 7
  28. 8.59
  29. 0.39
  30. 70
  31. 14.61
  32. 12.93
  33. 15.68
  34. 8.82
  35. 0.1
  36. 8.43
  37. 9.48
  38. 0.065
  39. 0.8
  40. 50

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