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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 471 · 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: 0.44, 0.037, 0.4, 0.389? (a) 0.44 (b) 0.037 (c) 0.4 (d) 0.389
  2. 2.2.43 + 5.1 = ? (a) 7.43 (b) 2.94 (c) 7.53 (d) 7.63
  3. 3.Which is the smallest: 0.38, 0.3, 0.224, 0.036? (a) 0.38 (b) 0.3 (c) 0.224 (d) 0.036
  4. 4.What is the value of the digit 9 in 58.429? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  5. 5.What is the value of the digit 5 in 54.723? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  6. 6.2.88 + 4.5 = ? (a) 7.28 (b) 3.33 (c) 7.38 (d) 7.48
  7. 7.7.48 + 8.1 = ? (a) 15.68 (b) 15.48 (c) 8.29 (d) 15.58
  8. 8.Which is the smallest: 0.014, 0.521, 0.64, 0.6? (a) 0.014 (b) 0.521 (c) 0.64 (d) 0.6
  9. 9.5.43 + 2.1 = ? (a) 7.63 (b) 7.43 (c) 7.53 (d) 5.64
  10. 10.What is the value of the digit 7 in 87.362? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  11. 11.Which is the greatest: 0.23, 0.2, 0.099, 0.136? (a) 0.23 (b) 0.2 (c) 0.099 (d) 0.136
  12. 12.Which is the greatest: 0.2, 0.21, 0.175, 0.068? (a) 0.2 (b) 0.21 (c) 0.175 (d) 0.068
  13. 13.3.23 + 2.8 = ? (a) 6.13 (b) 6.03 (c) 5.93 (d) 3.51
  14. 14.3.79 + 4.3 = ? (a) 7.99 (b) 8.09 (c) 4.22 (d) 8.19
  15. 15.Which is the smallest: 0.5, 0.042, 0.59, 0.485? (a) 0.5 (b) 0.042 (c) 0.59 (d) 0.485
  16. 16.What is the value of the digit 8 in 65.839? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  17. 17.Which is the greatest: 0.6, 0.61, 0.013, 0.532? (a) 0.6 (b) 0.61 (c) 0.013 (d) 0.532
  18. 18.Which is the smallest: 0.51, 0.446, 0.5, 0.068? (a) 0.51 (b) 0.446 (c) 0.5 (d) 0.068
  19. 19.Which is the greatest: 0.073, 0.71, 0.699, 0.7? (a) 0.073 (b) 0.71 (c) 0.699 (d) 0.7
  20. 20.Which is the greatest: 0.033, 0.44, 0.355, 0.4? (a) 0.033 (b) 0.44 (c) 0.355 (d) 0.4
  21. 21.3.85 + 3.7 = ? (a) 7.45 (b) 7.65 (c) 4.22 (d) 7.55
  22. 22.4.02 + 5.3 = ? (a) 9.22 (b) 9.32 (c) 4.55 (d) 9.42
  23. 23.Which is the greatest: 0.2, 0.21, 0.024, 0.164? (a) 0.2 (b) 0.21 (c) 0.024 (d) 0.164
  24. 24.8.81 + 1.3 = ? (a) 10.01 (b) 10.21 (c) 8.94 (d) 10.11
  25. 25.3.01 + 8.1 = ? (a) 11.11 (b) 3.82 (c) 11.01 (d) 11.21
  26. 26.5.08 + 2.9 = ? (a) 5.37 (b) 7.98 (c) 7.88 (d) 8.08
  27. 27.What is the value of the digit 2 in 12.475? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  28. 28.Which is the smallest: 0.081, 0.149, 0.25, 0.2? (a) 0.081 (b) 0.149 (c) 0.25 (d) 0.2
  29. 29.What is the value of the digit 5 in 25.491? (a) 50 (b) 5 (c) 0.05 (d) 0.5
  30. 30.1.85 + 9.6 = ? (a) 11.35 (b) 11.55 (c) 11.45 (d) 2.81
  31. 31.Which is the greatest: 0.4, 0.011, 0.42, 0.362? (a) 0.4 (b) 0.011 (c) 0.42 (d) 0.362
  32. 32.What is the value of the digit 1 in 13.428? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  33. 33.Which is the greatest: 0.217, 0.33, 0.062, 0.3? (a) 0.217 (b) 0.33 (c) 0.062 (d) 0.3
  34. 34.2.34 + 9.9 = ? (a) 3.33 (b) 12.24 (c) 12.34 (d) 12.14
  35. 35.4.22 + 7.1 = ? (a) 11.32 (b) 4.93 (c) 11.22 (d) 11.42
  36. 36.4.31 + 2.2 = ? (a) 6.61 (b) 6.41 (c) 4.53 (d) 6.51
  37. 37.What is the value of the digit 3 in 34.156? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  38. 38.9.71 + 9.7 = ? (a) 19.31 (b) 19.41 (c) 19.51 (d) 10.68
  39. 39.What is the value of the digit 7 in 62.147? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  40. 40.Which is the greatest: 0.8, 0.82, 0.048, 0.735? (a) 0.8 (b) 0.82 (c) 0.048 (d) 0.735

Answer key

  1. 0.037
  2. 7.53
  3. 0.036
  4. 0.009
  5. 50
  6. 7.38
  7. 15.58
  8. 0.014
  9. 7.53
  10. 7
  11. 0.23
  12. 0.21
  13. 6.03
  14. 8.09
  15. 0.042
  16. 0.8
  17. 0.61
  18. 0.068
  19. 0.71
  20. 0.44
  21. 7.55
  22. 9.32
  23. 0.21
  24. 10.11
  25. 11.11
  26. 7.98
  27. 2
  28. 0.081
  29. 5
  30. 11.45
  31. 0.42
  32. 10
  33. 0.33
  34. 12.24
  35. 11.32
  36. 6.51
  37. 30
  38. 19.41
  39. 0.007
  40. 0.82

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