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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 600 · 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: 0.2, 0.183, 0.034, 0.28? (a) 0.2 (b) 0.183 (c) 0.034 (d) 0.28
  2. 2.4.51 + 7.1 = ? (a) 5.22 (b) 11.71 (c) 11.51 (d) 11.61
  3. 3.What is the value of the digit 3 in 36.842? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  4. 4.What is the value of the digit 3 in 87.253? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  5. 5.What is the value of the digit 2 in 83.962? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  6. 6.Which is the smallest: 0.8, 0.759, 0.82, 0.025? (a) 0.8 (b) 0.759 (c) 0.82 (d) 0.025
  7. 7.What is the value of the digit 2 in 34.829? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  8. 8.4.21 + 3.1 = ? (a) 4.52 (b) 7.21 (c) 7.41 (d) 7.31
  9. 9.What is the value of the digit 7 in 35.879? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  10. 10.8.43 + 1.1 = ? (a) 8.54 (b) 9.53 (c) 9.43 (d) 9.63
  11. 11.9.05 + 1.4 = ? (a) 10.55 (b) 10.35 (c) 10.45 (d) 9.19
  12. 12.Which is the greatest: 0.487, 0.098, 0.55, 0.5? (a) 0.487 (b) 0.098 (c) 0.55 (d) 0.5
  13. 13.3.71 + 1.7 = ? (a) 5.31 (b) 5.51 (c) 5.41 (d) 3.88
  14. 14.5.71 + 5.2 = ? (a) 11.01 (b) 6.23 (c) 10.81 (d) 10.91
  15. 15.What is the value of the digit 9 in 96.287? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  16. 16.9.18 + 5.5 = ? (a) 9.73 (b) 14.58 (c) 14.78 (d) 14.68
  17. 17.Which is the greatest: 0.422, 0.58, 0.5, 0.014? (a) 0.422 (b) 0.58 (c) 0.5 (d) 0.014
  18. 18.What is the value of the digit 5 in 61.538? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  19. 19.Which is the greatest: 0.656, 0.72, 0.014, 0.7? (a) 0.656 (b) 0.72 (c) 0.014 (d) 0.7
  20. 20.3.65 + 8.8 = ? (a) 4.53 (b) 12.35 (c) 12.45 (d) 12.55
  21. 21.What is the value of the digit 2 in 53.621? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  22. 22.What is the value of the digit 2 in 62.137? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  23. 23.Which is the smallest: 0.4, 0.053, 0.43, 0.317? (a) 0.4 (b) 0.053 (c) 0.43 (d) 0.317
  24. 24.Which is the greatest: 0.096, 0.7, 0.72, 0.641? (a) 0.096 (b) 0.7 (c) 0.72 (d) 0.641
  25. 25.What is the value of the digit 6 in 82.659? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  26. 26.8.69 + 4.1 = ? (a) 9.1 (b) 12.89 (c) 12.69 (d) 12.79
  27. 27.7.12 + 3.1 = ? (a) 10.32 (b) 7.43 (c) 10.12 (d) 10.22
  28. 28.Which is the smallest: 0.038, 0.287, 0.3, 0.36? (a) 0.038 (b) 0.287 (c) 0.3 (d) 0.36
  29. 29.What is the value of the digit 5 in 35.618? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  30. 30.3.38 + 5.2 = ? (a) 8.48 (b) 8.68 (c) 3.9 (d) 8.58
  31. 31.Which is the greatest: 0.045, 0.78, 0.7, 0.694? (a) 0.045 (b) 0.78 (c) 0.7 (d) 0.694
  32. 32.Which is the smallest: 0.8, 0.028, 0.718, 0.82? (a) 0.8 (b) 0.028 (c) 0.718 (d) 0.82
  33. 33.What is the value of the digit 1 in 32.184? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  34. 34.What is the value of the digit 4 in 28.394? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  35. 35.Which is the greatest: 0.087, 0.711, 0.8, 0.82? (a) 0.087 (b) 0.711 (c) 0.8 (d) 0.82
  36. 36.What is the value of the digit 3 in 93.745? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  37. 37.7.38 + 6.9 = ? (a) 14.38 (b) 14.28 (c) 8.07 (d) 14.18
  38. 38.What is the value of the digit 5 in 52.396? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  39. 39.Which is the greatest: 0.4, 0.43, 0.056, 0.389? (a) 0.4 (b) 0.43 (c) 0.056 (d) 0.389
  40. 40.2.34 + 6.5 = ? (a) 8.84 (b) 8.74 (c) 2.99 (d) 8.94

Answer key

  1. 0.034
  2. 11.61
  3. 30
  4. 0.003
  5. 0.002
  6. 0.025
  7. 0.02
  8. 7.31
  9. 0.07
  10. 9.53
  11. 10.45
  12. 0.55
  13. 5.41
  14. 10.91
  15. 90
  16. 14.68
  17. 0.58
  18. 0.5
  19. 0.72
  20. 12.45
  21. 0.02
  22. 2
  23. 0.053
  24. 0.72
  25. 0.6
  26. 12.79
  27. 10.22
  28. 0.038
  29. 5
  30. 8.58
  31. 0.78
  32. 0.028
  33. 0.1
  34. 0.004
  35. 0.82
  36. 3
  37. 14.28
  38. 50
  39. 0.43
  40. 8.84

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