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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 163 · 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: 0.056, 0.454, 0.5, 0.51? (a) 0.056 (b) 0.454 (c) 0.5 (d) 0.51
  2. 2.5.92 + 7.7 = ? (a) 6.69 (b) 13.52 (c) 13.72 (d) 13.62
  3. 3.1.19 + 1.2 = ? (a) 2.29 (b) 2.39 (c) 2.49 (d) 1.31
  4. 4.Which is the smallest: 0.154, 0.027, 0.26, 0.2? (a) 0.154 (b) 0.027 (c) 0.26 (d) 0.2
  5. 5.What is the value of the digit 3 in 13.596? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  6. 6.What is the value of the digit 3 in 31.258? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  7. 7.What is the value of the digit 2 in 27.156? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  8. 8.What is the value of the digit 8 in 78.321? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  9. 9.What is the value of the digit 7 in 43.972? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  10. 10.Which is the greatest: 0.324, 0.4, 0.43, 0.075? (a) 0.324 (b) 0.4 (c) 0.43 (d) 0.075
  11. 11.Which is the smallest: 0.34, 0.079, 0.3, 0.236? (a) 0.34 (b) 0.079 (c) 0.3 (d) 0.236
  12. 12.Which is the greatest: 0.038, 0.323, 0.4, 0.49? (a) 0.038 (b) 0.323 (c) 0.4 (d) 0.49
  13. 13.Which is the greatest: 0.022, 0.638, 0.7, 0.75? (a) 0.022 (b) 0.638 (c) 0.7 (d) 0.75
  14. 14.What is the value of the digit 3 in 26.534? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  15. 15.3.89 + 6.8 = ? (a) 10.59 (b) 4.57 (c) 10.79 (d) 10.69
  16. 16.7.06 + 5.6 = ? (a) 12.66 (b) 7.62 (c) 12.56 (d) 12.76
  17. 17.6.28 + 3.8 = ? (a) 10.18 (b) 6.66 (c) 9.98 (d) 10.08
  18. 18.6.72 + 8.9 = ? (a) 15.52 (b) 15.72 (c) 7.61 (d) 15.62
  19. 19.What is the value of the digit 6 in 58.639? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  20. 20.3.83 + 2.8 = ? (a) 4.11 (b) 6.53 (c) 6.73 (d) 6.63
  21. 21.Which is the greatest: 0.83, 0.8, 0.791, 0.048? (a) 0.83 (b) 0.8 (c) 0.791 (d) 0.048
  22. 22.Which is the greatest: 0.287, 0.057, 0.33, 0.3? (a) 0.287 (b) 0.057 (c) 0.33 (d) 0.3
  23. 23.2.47 + 8.2 = ? (a) 10.77 (b) 3.29 (c) 10.57 (d) 10.67
  24. 24.What is the value of the digit 1 in 26.135? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  25. 25.What is the value of the digit 8 in 81.237? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  26. 26.Which is the greatest: 0.085, 0.4, 0.45, 0.383? (a) 0.085 (b) 0.4 (c) 0.45 (d) 0.383
  27. 27.Which is the smallest: 0.27, 0.035, 0.194, 0.2? (a) 0.27 (b) 0.035 (c) 0.194 (d) 0.2
  28. 28.What is the value of the digit 4 in 52.481? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  29. 29.Which is the greatest: 0.058, 0.118, 0.25, 0.2? (a) 0.058 (b) 0.118 (c) 0.25 (d) 0.2
  30. 30.What is the value of the digit 3 in 89.312? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  31. 31.What is the value of the digit 2 in 27.843? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  32. 32.What is the value of the digit 6 in 95.463? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  33. 33.Which is the greatest: 0.3, 0.288, 0.065, 0.34? (a) 0.3 (b) 0.288 (c) 0.065 (d) 0.34
  34. 34.What is the value of the digit 3 in 58.739? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  35. 35.8.82 + 7.1 = ? (a) 9.53 (b) 15.92 (c) 16.02 (d) 15.82
  36. 36.What is the value of the digit 1 in 16.932? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  37. 37.What is the value of the digit 4 in 81.694? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  38. 38.Which is the greatest: 0.4, 0.47, 0.358, 0.096? (a) 0.4 (b) 0.47 (c) 0.358 (d) 0.096
  39. 39.8.58 + 8.5 = ? (a) 17.08 (b) 17.18 (c) 9.43 (d) 16.98
  40. 40.What is the value of the digit 9 in 45.398? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9

Answer key

  1. 0.056
  2. 13.62
  3. 2.39
  4. 0.027
  5. 3
  6. 30
  7. 20
  8. 8
  9. 0.07
  10. 0.43
  11. 0.079
  12. 0.49
  13. 0.75
  14. 0.03
  15. 10.69
  16. 12.66
  17. 10.08
  18. 15.62
  19. 0.6
  20. 6.63
  21. 0.83
  22. 0.33
  23. 10.67
  24. 0.1
  25. 80
  26. 0.45
  27. 0.035
  28. 0.4
  29. 0.25
  30. 0.3
  31. 20
  32. 0.06
  33. 0.34
  34. 0.03
  35. 15.92
  36. 10
  37. 0.004
  38. 0.47
  39. 17.08
  40. 0.09

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