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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 924 · 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. 1.6.18 + 7.6 = ? (a) 13.78 (b) 13.88 (c) 6.94 (d) 13.68
  2. 2.What is the value of the digit 1 in 89.147? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  3. 3.6.78 + 9.8 = ? (a) 16.68 (b) 7.76 (c) 16.48 (d) 16.58
  4. 4.Which is the smallest: 0.012, 0.272, 0.38, 0.3? (a) 0.012 (b) 0.272 (c) 0.38 (d) 0.3
  5. 5.What is the value of the digit 5 in 16.852? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  6. 6.Which is the greatest: 0.73, 0.681, 0.077, 0.7? (a) 0.73 (b) 0.681 (c) 0.077 (d) 0.7
  7. 7.Which is the greatest: 0.3, 0.249, 0.31, 0.046? (a) 0.3 (b) 0.249 (c) 0.31 (d) 0.046
  8. 8.8.62 + 2.2 = ? (a) 10.92 (b) 10.82 (c) 10.72 (d) 8.84
  9. 9.Which is the greatest: 0.431, 0.036, 0.5, 0.53? (a) 0.431 (b) 0.036 (c) 0.5 (d) 0.53
  10. 10.What is the value of the digit 2 in 24.358? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  11. 11.What is the value of the digit 6 in 18.726? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  12. 12.What is the value of the digit 9 in 67.938? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  13. 13.Which is the smallest: 0.212, 0.32, 0.056, 0.3? (a) 0.212 (b) 0.32 (c) 0.056 (d) 0.3
  14. 14.6.82 + 6.7 = ? (a) 13.62 (b) 13.52 (c) 7.49 (d) 13.42
  15. 15.What is the value of the digit 3 in 92.753? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  16. 16.Which is the greatest: 0.173, 0.29, 0.2, 0.012? (a) 0.173 (b) 0.29 (c) 0.2 (d) 0.012
  17. 17.What is the value of the digit 4 in 43.912? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  18. 18.1.93 + 9.8 = ? (a) 2.91 (b) 11.63 (c) 11.83 (d) 11.73
  19. 19.6.47 + 7.4 = ? (a) 13.77 (b) 13.87 (c) 7.21 (d) 13.97
  20. 20.What is the value of the digit 3 in 18.563? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  21. 21.Which is the smallest: 0.053, 0.277, 0.3, 0.38? (a) 0.053 (b) 0.277 (c) 0.3 (d) 0.38
  22. 22.What is the value of the digit 1 in 91.586? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  23. 23.What is the value of the digit 8 in 17.984? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  24. 24.1.61 + 9.1 = ? (a) 10.61 (b) 2.52 (c) 10.71 (d) 10.81
  25. 25.6.06 + 2.9 = ? (a) 6.35 (b) 8.96 (c) 8.86 (d) 9.06
  26. 26.What is the value of the digit 6 in 62.179? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  27. 27.What is the value of the digit 3 in 23.489? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  28. 28.Which is the greatest: 0.499, 0.5, 0.018, 0.55? (a) 0.499 (b) 0.5 (c) 0.018 (d) 0.55
  29. 29.Which is the smallest: 0.268, 0.028, 0.33, 0.3? (a) 0.268 (b) 0.028 (c) 0.33 (d) 0.3
  30. 30.3.45 + 1.8 = ? (a) 5.35 (b) 5.25 (c) 5.15 (d) 3.63
  31. 31.Which is the greatest: 0.077, 0.619, 0.73, 0.7? (a) 0.077 (b) 0.619 (c) 0.73 (d) 0.7
  32. 32.What is the value of the digit 9 in 29.371? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  33. 33.1.61 + 1.2 = ? (a) 2.71 (b) 2.91 (c) 2.81 (d) 1.73
  34. 34.8.99 + 7.5 = ? (a) 16.39 (b) 16.49 (c) 16.59 (d) 9.74
  35. 35.Which is the greatest: 0.5, 0.55, 0.451, 0.086? (a) 0.5 (b) 0.55 (c) 0.451 (d) 0.086
  36. 36.1.76 + 7.5 = ? (a) 2.51 (b) 9.36 (c) 9.16 (d) 9.26
  37. 37.2.86 + 3.7 = ? (a) 6.46 (b) 6.56 (c) 3.23 (d) 6.66
  38. 38.What is the value of the digit 8 in 89.517? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  39. 39.What is the value of the digit 8 in 38.162? (a) 0.08 (b) 0.8 (c) 8 (d) 80
  40. 40.What is the value of the digit 4 in 49.187? (a) 0.04 (b) 40 (c) 0.4 (d) 4

Answer key

  1. 13.78
  2. 0.1
  3. 16.58
  4. 0.012
  5. 0.05
  6. 0.73
  7. 0.31
  8. 10.82
  9. 0.53
  10. 20
  11. 0.006
  12. 0.9
  13. 0.056
  14. 13.52
  15. 0.003
  16. 0.29
  17. 40
  18. 11.73
  19. 13.87
  20. 0.003
  21. 0.053
  22. 1
  23. 0.08
  24. 10.71
  25. 8.96
  26. 60
  27. 3
  28. 0.55
  29. 0.028
  30. 5.25
  31. 0.73
  32. 9
  33. 2.81
  34. 16.49
  35. 0.55
  36. 9.26
  37. 6.56
  38. 80
  39. 8
  40. 40

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