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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 95 · 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.What is the value of the digit 6 in 83.726? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  2. 2.3.04 + 8.6 = ? (a) 3.9 (b) 11.54 (c) 11.64 (d) 11.74
  3. 3.4.04 + 7.9 = ? (a) 11.94 (b) 11.84 (c) 12.04 (d) 4.83
  4. 4.What is the value of the digit 6 in 34.768? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  5. 5.6.36 + 6.2 = ? (a) 12.46 (b) 6.98 (c) 12.66 (d) 12.56
  6. 6.4.48 + 9.4 = ? (a) 13.98 (b) 13.78 (c) 5.42 (d) 13.88
  7. 7.Which is the greatest: 0.7, 0.049, 0.76, 0.694? (a) 0.7 (b) 0.049 (c) 0.76 (d) 0.694
  8. 8.4.19 + 7.8 = ? (a) 4.97 (b) 11.99 (c) 11.89 (d) 12.09
  9. 9.What is the value of the digit 4 in 93.184? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  10. 10.Which is the greatest: 0.018, 0.133, 0.27, 0.2? (a) 0.018 (b) 0.133 (c) 0.27 (d) 0.2
  11. 11.5.06 + 8.9 = ? (a) 13.96 (b) 13.86 (c) 14.06 (d) 5.95
  12. 12.Which is the smallest: 0.78, 0.677, 0.7, 0.011? (a) 0.78 (b) 0.677 (c) 0.7 (d) 0.011
  13. 13.What is the value of the digit 4 in 96.534? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  14. 14.Which is the smallest: 0.061, 0.177, 0.2, 0.23? (a) 0.061 (b) 0.177 (c) 0.2 (d) 0.23
  15. 15.7.18 + 8.9 = ? (a) 15.98 (b) 16.18 (c) 16.08 (d) 8.07
  16. 16.2.31 + 3.9 = ? (a) 6.11 (b) 6.31 (c) 2.7 (d) 6.21
  17. 17.3.32 + 3.6 = ? (a) 6.92 (b) 3.68 (c) 6.82 (d) 7.02
  18. 18.What is the value of the digit 8 in 23.489? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  19. 19.Which is the greatest: 0.051, 0.69, 0.585, 0.6? (a) 0.051 (b) 0.69 (c) 0.585 (d) 0.6
  20. 20.What is the value of the digit 7 in 82.437? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  21. 21.Which is the greatest: 0.74, 0.662, 0.025, 0.7? (a) 0.74 (b) 0.662 (c) 0.025 (d) 0.7
  22. 22.Which is the smallest: 0.528, 0.6, 0.64, 0.099? (a) 0.528 (b) 0.6 (c) 0.64 (d) 0.099
  23. 23.Which is the greatest: 0.325, 0.4, 0.029, 0.46? (a) 0.325 (b) 0.4 (c) 0.029 (d) 0.46
  24. 24.What is the value of the digit 9 in 49.812? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  25. 25.2.97 + 8.5 = ? (a) 11.57 (b) 11.47 (c) 11.37 (d) 3.82
  26. 26.4.57 + 2.4 = ? (a) 7.07 (b) 4.81 (c) 6.87 (d) 6.97
  27. 27.7.32 + 7.6 = ? (a) 15.02 (b) 14.82 (c) 14.92 (d) 8.08
  28. 28.5.67 + 6.3 = ? (a) 11.87 (b) 6.3 (c) 12.07 (d) 11.97
  29. 29.What is the value of the digit 2 in 75.132? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  30. 30.4.64 + 1.2 = ? (a) 5.84 (b) 4.76 (c) 5.74 (d) 5.94
  31. 31.Which is the smallest: 0.789, 0.8, 0.81, 0.031? (a) 0.789 (b) 0.8 (c) 0.81 (d) 0.031
  32. 32.Which is the greatest: 0.4, 0.45, 0.338, 0.092? (a) 0.4 (b) 0.45 (c) 0.338 (d) 0.092
  33. 33.Which is the smallest: 0.452, 0.55, 0.034, 0.5? (a) 0.452 (b) 0.55 (c) 0.034 (d) 0.5
  34. 34.Which is the smallest: 0.7, 0.674, 0.75, 0.013? (a) 0.7 (b) 0.674 (c) 0.75 (d) 0.013
  35. 35.Which is the greatest: 0.494, 0.011, 0.55, 0.5? (a) 0.494 (b) 0.011 (c) 0.55 (d) 0.5
  36. 36.What is the value of the digit 8 in 97.283? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  37. 37.What is the value of the digit 7 in 41.753? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  38. 38.Which is the greatest: 0.4, 0.036, 0.44, 0.383? (a) 0.4 (b) 0.036 (c) 0.44 (d) 0.383
  39. 39.4.55 + 6.2 = ? (a) 10.85 (b) 10.65 (c) 5.17 (d) 10.75
  40. 40.What is the value of the digit 7 in 81.537? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07

Answer key

  1. 0.006
  2. 11.64
  3. 11.94
  4. 0.06
  5. 12.56
  6. 13.88
  7. 0.76
  8. 11.99
  9. 0.004
  10. 0.27
  11. 13.96
  12. 0.011
  13. 0.004
  14. 0.061
  15. 16.08
  16. 6.21
  17. 6.92
  18. 0.08
  19. 0.69
  20. 0.007
  21. 0.74
  22. 0.099
  23. 0.46
  24. 9
  25. 11.47
  26. 6.97
  27. 14.92
  28. 11.97
  29. 0.002
  30. 5.84
  31. 0.031
  32. 0.45
  33. 0.034
  34. 0.013
  35. 0.55
  36. 0.08
  37. 0.7
  38. 0.44
  39. 10.75
  40. 0.007

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