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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 423 · 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: 0.622, 0.79, 0.7, 0.092? (a) 0.622 (b) 0.79 (c) 0.7 (d) 0.092
  2. 2.What is the value of the digit 4 in 13.478? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  3. 3.1.57 + 6.8 = ? (a) 2.25 (b) 8.27 (c) 8.47 (d) 8.37
  4. 4.Which is the smallest: 0.055, 0.314, 0.45, 0.4? (a) 0.055 (b) 0.314 (c) 0.45 (d) 0.4
  5. 5.What is the value of the digit 9 in 59.483? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  6. 6.What is the value of the digit 1 in 23.189? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  7. 7.7.52 + 8.5 = ? (a) 8.37 (b) 16.12 (c) 16.02 (d) 15.92
  8. 8.Which is the greatest: 0.042, 0.29, 0.139, 0.2? (a) 0.042 (b) 0.29 (c) 0.139 (d) 0.2
  9. 9.4.26 + 2.8 = ? (a) 4.54 (b) 7.16 (c) 6.96 (d) 7.06
  10. 10.3.21 + 3.7 = ? (a) 6.91 (b) 7.01 (c) 6.81 (d) 3.58
  11. 11.9.06 + 4.5 = ? (a) 13.56 (b) 13.66 (c) 13.46 (d) 9.51
  12. 12.4.78 + 8.9 = ? (a) 13.68 (b) 13.58 (c) 13.78 (d) 5.67
  13. 13.Which is the greatest: 0.038, 0.25, 0.114, 0.2? (a) 0.038 (b) 0.25 (c) 0.114 (d) 0.2
  14. 14.Which is the smallest: 0.43, 0.4, 0.058, 0.397? (a) 0.43 (b) 0.4 (c) 0.058 (d) 0.397
  15. 15.What is the value of the digit 8 in 31.578? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  16. 16.What is the value of the digit 8 in 61.348? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  17. 17.5.43 + 2.3 = ? (a) 7.63 (b) 5.66 (c) 7.73 (d) 7.83
  18. 18.2.73 + 6.5 = ? (a) 9.23 (b) 3.38 (c) 9.13 (d) 9.33
  19. 19.2.98 + 1.8 = ? (a) 4.68 (b) 4.88 (c) 4.78 (d) 3.16
  20. 20.6.82 + 8.4 = ? (a) 15.12 (b) 15.32 (c) 7.66 (d) 15.22
  21. 21.What is the value of the digit 2 in 92.486? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  22. 22.What is the value of the digit 7 in 73.125? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  23. 23.What is the value of the digit 2 in 54.926? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  24. 24.What is the value of the digit 9 in 96.238? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  25. 25.What is the value of the digit 8 in 15.982? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  26. 26.What is the value of the digit 2 in 27.531? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  27. 27.What is the value of the digit 2 in 52.619? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  28. 28.Which is the smallest: 0.082, 0.2, 0.114, 0.25? (a) 0.082 (b) 0.2 (c) 0.114 (d) 0.25
  29. 29.4.64 + 5.2 = ? (a) 9.84 (b) 5.16 (c) 9.74 (d) 9.94
  30. 30.8.01 + 2.5 = ? (a) 8.26 (b) 10.51 (c) 10.41 (d) 10.61
  31. 31.What is the value of the digit 2 in 17.246? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  32. 32.2.11 + 3.4 = ? (a) 5.41 (b) 5.61 (c) 5.51 (d) 2.45
  33. 33.What is the value of the digit 5 in 79.315? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  34. 34.2.71 + 7.3 = ? (a) 10.11 (b) 10.01 (c) 3.44 (d) 9.91
  35. 35.What is the value of the digit 7 in 73.495? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  36. 36.What is the value of the digit 7 in 34.867? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  37. 37.What is the value of the digit 3 in 13.942? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  38. 38.Which is the greatest: 0.5, 0.467, 0.51, 0.017? (a) 0.5 (b) 0.467 (c) 0.51 (d) 0.017
  39. 39.5.64 + 2.6 = ? (a) 8.14 (b) 8.24 (c) 8.34 (d) 5.9
  40. 40.What is the value of the digit 7 in 45.617? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007

Answer key

  1. 0.79
  2. 0.4
  3. 8.37
  4. 0.055
  5. 9
  6. 0.1
  7. 16.02
  8. 0.29
  9. 7.06
  10. 6.91
  11. 13.56
  12. 13.68
  13. 0.25
  14. 0.058
  15. 0.008
  16. 0.008
  17. 7.73
  18. 9.23
  19. 4.78
  20. 15.22
  21. 2
  22. 70
  23. 0.02
  24. 90
  25. 0.08
  26. 20
  27. 2
  28. 0.082
  29. 9.84
  30. 10.51
  31. 0.2
  32. 5.51
  33. 0.005
  34. 10.01
  35. 70
  36. 0.007
  37. 3
  38. 0.51
  39. 8.24
  40. 0.007

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