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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 805 · 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 7 in 21.576? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  2. 2.Which is the greatest: 0.7, 0.76, 0.052, 0.652? (a) 0.7 (b) 0.76 (c) 0.052 (d) 0.652
  3. 3.Which is the smallest: 0.783, 0.82, 0.041, 0.8? (a) 0.783 (b) 0.82 (c) 0.041 (d) 0.8
  4. 4.What is the value of the digit 8 in 74.821? (a) 0.08 (b) 8 (c) 0.8 (d) 0.008
  5. 5.What is the value of the digit 3 in 67.813? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  6. 6.4.39 + 5.3 = ? (a) 4.92 (b) 9.79 (c) 9.59 (d) 9.69
  7. 7.1.19 + 4.3 = ? (a) 5.49 (b) 1.62 (c) 5.39 (d) 5.59
  8. 8.1.52 + 4.1 = ? (a) 1.93 (b) 5.62 (c) 5.72 (d) 5.52
  9. 9.Which is the smallest: 0.56, 0.5, 0.434, 0.015? (a) 0.56 (b) 0.5 (c) 0.434 (d) 0.015
  10. 10.8.27 + 2.9 = ? (a) 11.07 (b) 11.27 (c) 11.17 (d) 8.56
  11. 11.7.33 + 7.2 = ? (a) 14.53 (b) 14.43 (c) 8.05 (d) 14.63
  12. 12.2.15 + 4.8 = ? (a) 7.05 (b) 6.85 (c) 6.95 (d) 2.63
  13. 13.4.82 + 1.5 = ? (a) 6.32 (b) 4.97 (c) 6.22 (d) 6.42
  14. 14.7.53 + 5.1 = ? (a) 12.63 (b) 8.04 (c) 12.73 (d) 12.53
  15. 15.Which is the smallest: 0.212, 0.053, 0.3, 0.35? (a) 0.212 (b) 0.053 (c) 0.3 (d) 0.35
  16. 16.Which is the greatest: 0.8, 0.097, 0.88, 0.786? (a) 0.8 (b) 0.097 (c) 0.88 (d) 0.786
  17. 17.5.04 + 5.1 = ? (a) 10.14 (b) 10.24 (c) 10.04 (d) 5.55
  18. 18.Which is the greatest: 0.479, 0.56, 0.5, 0.039? (a) 0.479 (b) 0.56 (c) 0.5 (d) 0.039
  19. 19.9.58 + 3.7 = ? (a) 9.95 (b) 13.28 (c) 13.18 (d) 13.38
  20. 20.Which is the greatest: 0.036, 0.3, 0.35, 0.281? (a) 0.036 (b) 0.3 (c) 0.35 (d) 0.281
  21. 21.What is the value of the digit 1 in 49.167? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  22. 22.Which is the greatest: 0.535, 0.61, 0.011, 0.6? (a) 0.535 (b) 0.61 (c) 0.011 (d) 0.6
  23. 23.2.25 + 8.4 = ? (a) 3.09 (b) 10.75 (c) 10.55 (d) 10.65
  24. 24.4.93 + 8.4 = ? (a) 13.23 (b) 13.33 (c) 13.43 (d) 5.77
  25. 25.What is the value of the digit 2 in 52.346? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  26. 26.What is the value of the digit 5 in 54.916? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  27. 27.Which is the greatest: 0.83, 0.8, 0.026, 0.764? (a) 0.83 (b) 0.8 (c) 0.026 (d) 0.764
  28. 28.Which is the greatest: 0.74, 0.626, 0.087, 0.7? (a) 0.74 (b) 0.626 (c) 0.087 (d) 0.7
  29. 29.7.21 + 2.1 = ? (a) 9.21 (b) 9.41 (c) 9.31 (d) 7.42
  30. 30.Which is the smallest: 0.2, 0.145, 0.088, 0.24? (a) 0.2 (b) 0.145 (c) 0.088 (d) 0.24
  31. 31.2.95 + 8.8 = ? (a) 11.85 (b) 11.65 (c) 3.83 (d) 11.75
  32. 32.What is the value of the digit 8 in 95.648? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  33. 33.6.31 + 9.8 = ? (a) 7.29 (b) 16.11 (c) 16.01 (d) 16.21
  34. 34.Which is the smallest: 0.3, 0.013, 0.39, 0.227? (a) 0.3 (b) 0.013 (c) 0.39 (d) 0.227
  35. 35.What is the value of the digit 4 in 15.462? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  36. 36.1.68 + 9.2 = ? (a) 10.88 (b) 10.98 (c) 2.6 (d) 10.78
  37. 37.What is the value of the digit 5 in 71.853? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  38. 38.1.63 + 1.5 = ? (a) 3.13 (b) 1.78 (c) 3.23 (d) 3.03
  39. 39.What is the value of the digit 7 in 27.516? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  40. 40.Which is the greatest: 0.052, 0.2, 0.149, 0.29? (a) 0.052 (b) 0.2 (c) 0.149 (d) 0.29

Answer key

  1. 0.07
  2. 0.76
  3. 0.041
  4. 0.8
  5. 0.003
  6. 9.69
  7. 5.49
  8. 5.62
  9. 0.015
  10. 11.17
  11. 14.53
  12. 6.95
  13. 6.32
  14. 12.63
  15. 0.053
  16. 0.88
  17. 10.14
  18. 0.56
  19. 13.28
  20. 0.35
  21. 0.1
  22. 0.61
  23. 10.65
  24. 13.33
  25. 2
  26. 50
  27. 0.83
  28. 0.74
  29. 9.31
  30. 0.088
  31. 11.75
  32. 0.008
  33. 16.11
  34. 0.013
  35. 0.4
  36. 10.88
  37. 0.05
  38. 3.13
  39. 7
  40. 0.29

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