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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 898 · 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 1 in 35.126? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  2. 2.Which is the smallest: 0.8, 0.734, 0.86, 0.033? (a) 0.8 (b) 0.734 (c) 0.86 (d) 0.033
  3. 3.What is the value of the digit 8 in 25.813? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  4. 4.What is the value of the digit 7 in 37.164? (a) 0.7 (b) 70 (c) 0.07 (d) 7
  5. 5.Which is the greatest: 0.2, 0.28, 0.176, 0.085? (a) 0.2 (b) 0.28 (c) 0.176 (d) 0.085
  6. 6.Which is the smallest: 0.039, 0.41, 0.332, 0.4? (a) 0.039 (b) 0.41 (c) 0.332 (d) 0.4
  7. 7.Which is the smallest: 0.297, 0.37, 0.3, 0.091? (a) 0.297 (b) 0.37 (c) 0.3 (d) 0.091
  8. 8.What is the value of the digit 2 in 16.729? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  9. 9.What is the value of the digit 2 in 98.231? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  10. 10.2.27 + 7.1 = ? (a) 9.37 (b) 2.98 (c) 9.47 (d) 9.27
  11. 11.What is the value of the digit 3 in 19.372? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  12. 12.6.05 + 8.1 = ? (a) 14.05 (b) 14.15 (c) 6.86 (d) 14.25
  13. 13.Which is the greatest: 0.66, 0.068, 0.6, 0.522? (a) 0.66 (b) 0.068 (c) 0.6 (d) 0.522
  14. 14.What is the value of the digit 7 in 14.758? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  15. 15.Which is the smallest: 0.71, 0.052, 0.7, 0.654? (a) 0.71 (b) 0.052 (c) 0.7 (d) 0.654
  16. 16.What is the value of the digit 4 in 32.549? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  17. 17.Which is the greatest: 0.23, 0.182, 0.098, 0.2? (a) 0.23 (b) 0.182 (c) 0.098 (d) 0.2
  18. 18.5.38 + 3.3 = ? (a) 8.68 (b) 8.58 (c) 8.78 (d) 5.71
  19. 19.7.31 + 3.3 = ? (a) 10.71 (b) 10.51 (c) 10.61 (d) 7.64
  20. 20.What is the value of the digit 2 in 64.298? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  21. 21.Which is the smallest: 0.049, 0.669, 0.79, 0.7? (a) 0.049 (b) 0.669 (c) 0.79 (d) 0.7
  22. 22.2.77 + 1.4 = ? (a) 4.27 (b) 2.91 (c) 4.07 (d) 4.17
  23. 23.What is the value of the digit 1 in 57.214? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  24. 24.What is the value of the digit 8 in 82.617? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  25. 25.What is the value of the digit 6 in 62.379? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  26. 26.Which is the smallest: 0.092, 0.367, 0.42, 0.4? (a) 0.092 (b) 0.367 (c) 0.42 (d) 0.4
  27. 27.What is the value of the digit 4 in 74.926? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  28. 28.Which is the smallest: 0.38, 0.084, 0.3, 0.276? (a) 0.38 (b) 0.084 (c) 0.3 (d) 0.276
  29. 29.Which is the smallest: 0.44, 0.075, 0.4, 0.351? (a) 0.44 (b) 0.075 (c) 0.4 (d) 0.351
  30. 30.Which is the smallest: 0.632, 0.7, 0.78, 0.068? (a) 0.632 (b) 0.7 (c) 0.78 (d) 0.068
  31. 31.Which is the smallest: 0.5, 0.463, 0.51, 0.012? (a) 0.5 (b) 0.463 (c) 0.51 (d) 0.012
  32. 32.Which is the greatest: 0.749, 0.8, 0.87, 0.048? (a) 0.749 (b) 0.8 (c) 0.87 (d) 0.048
  33. 33.Which is the greatest: 0.077, 0.5, 0.419, 0.58? (a) 0.077 (b) 0.5 (c) 0.419 (d) 0.58
  34. 34.What is the value of the digit 2 in 27.819? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  35. 35.What is the value of the digit 7 in 87.396? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  36. 36.What is the value of the digit 5 in 89.135? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  37. 37.5.32 + 7.1 = ? (a) 6.03 (b) 12.42 (c) 12.32 (d) 12.52
  38. 38.What is the value of the digit 5 in 54.963? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  39. 39.6.69 + 2.8 = ? (a) 9.59 (b) 6.97 (c) 9.49 (d) 9.39
  40. 40.Which is the smallest: 0.37, 0.213, 0.056, 0.3? (a) 0.37 (b) 0.213 (c) 0.056 (d) 0.3

Answer key

  1. 0.1
  2. 0.033
  3. 0.8
  4. 7
  5. 0.28
  6. 0.039
  7. 0.091
  8. 0.02
  9. 0.2
  10. 9.37
  11. 0.3
  12. 14.15
  13. 0.66
  14. 0.7
  15. 0.052
  16. 0.04
  17. 0.23
  18. 8.68
  19. 10.61
  20. 0.2
  21. 0.049
  22. 4.17
  23. 0.01
  24. 80
  25. 60
  26. 0.092
  27. 4
  28. 0.084
  29. 0.075
  30. 0.068
  31. 0.012
  32. 0.87
  33. 0.58
  34. 20
  35. 7
  36. 0.005
  37. 12.42
  38. 50
  39. 9.49
  40. 0.056

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