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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 917 · 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: 0.031, 0.258, 0.3, 0.37? (a) 0.031 (b) 0.258 (c) 0.3 (d) 0.37
  2. 2.What is the value of the digit 3 in 53.726? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  3. 3.Which is the smallest: 0.4, 0.365, 0.054, 0.42? (a) 0.4 (b) 0.365 (c) 0.054 (d) 0.42
  4. 4.Which is the smallest: 0.187, 0.2, 0.084, 0.27? (a) 0.187 (b) 0.2 (c) 0.084 (d) 0.27
  5. 5.6.21 + 9.6 = ? (a) 15.81 (b) 15.91 (c) 7.17 (d) 15.71
  6. 6.4.76 + 8.7 = ? (a) 13.46 (b) 13.56 (c) 13.36 (d) 5.63
  7. 7.What is the value of the digit 7 in 42.798? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  8. 8.Which is the smallest: 0.089, 0.4, 0.47, 0.388? (a) 0.089 (b) 0.4 (c) 0.47 (d) 0.388
  9. 9.6.83 + 2.6 = ? (a) 7.09 (b) 9.53 (c) 9.33 (d) 9.43
  10. 10.What is the value of the digit 8 in 82.569? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  11. 11.9.21 + 4.3 = ? (a) 13.61 (b) 13.51 (c) 13.41 (d) 9.64
  12. 12.2.64 + 3.7 = ? (a) 3.01 (b) 6.34 (c) 6.44 (d) 6.24
  13. 13.What is the value of the digit 8 in 82.416? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  14. 14.Which is the smallest: 0.034, 0.621, 0.72, 0.7? (a) 0.034 (b) 0.621 (c) 0.72 (d) 0.7
  15. 15.Which is the greatest: 0.085, 0.5, 0.53, 0.448? (a) 0.085 (b) 0.5 (c) 0.53 (d) 0.448
  16. 16.Which is the smallest: 0.6, 0.542, 0.025, 0.67? (a) 0.6 (b) 0.542 (c) 0.025 (d) 0.67
  17. 17.What is the value of the digit 8 in 86.253? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  18. 18.6.86 + 8.4 = ? (a) 15.36 (b) 7.7 (c) 15.26 (d) 15.16
  19. 19.3.01 + 5.1 = ? (a) 8.01 (b) 8.11 (c) 3.52 (d) 8.21
  20. 20.4.01 + 5.4 = ? (a) 9.41 (b) 9.31 (c) 4.55 (d) 9.51
  21. 21.Which is the greatest: 0.043, 0.2, 0.23, 0.163? (a) 0.043 (b) 0.2 (c) 0.23 (d) 0.163
  22. 22.What is the value of the digit 6 in 51.639? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  23. 23.What is the value of the digit 2 in 14.523? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  24. 24.9.88 + 1.6 = ? (a) 11.58 (b) 11.48 (c) 10.04 (d) 11.38
  25. 25.What is the value of the digit 3 in 41.235? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  26. 26.Which is the greatest: 0.29, 0.2, 0.172, 0.033? (a) 0.29 (b) 0.2 (c) 0.172 (d) 0.033
  27. 27.6.97 + 6.7 = ? (a) 13.67 (b) 13.77 (c) 13.57 (d) 7.64
  28. 28.What is the value of the digit 4 in 46.817? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  29. 29.What is the value of the digit 9 in 34.962? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  30. 30.6.66 + 8.7 = ? (a) 15.46 (b) 15.26 (c) 15.36 (d) 7.53
  31. 31.1.78 + 6.1 = ? (a) 7.88 (b) 7.78 (c) 2.39 (d) 7.98
  32. 32.What is the value of the digit 9 in 29.651? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  33. 33.What is the value of the digit 1 in 18.426? (a) 0.01 (b) 10 (c) 0.1 (d) 1
  34. 34.Which is the greatest: 0.041, 0.38, 0.287, 0.3? (a) 0.041 (b) 0.38 (c) 0.287 (d) 0.3
  35. 35.Which is the smallest: 0.7, 0.062, 0.668, 0.76? (a) 0.7 (b) 0.062 (c) 0.668 (d) 0.76
  36. 36.What is the value of the digit 3 in 36.471? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  37. 37.4.71 + 3.5 = ? (a) 8.31 (b) 8.21 (c) 8.11 (d) 5.06
  38. 38.What is the value of the digit 7 in 31.627? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  39. 39.Which is the smallest: 0.62, 0.553, 0.6, 0.085? (a) 0.62 (b) 0.553 (c) 0.6 (d) 0.085
  40. 40.Which is the smallest: 0.514, 0.032, 0.64, 0.6? (a) 0.514 (b) 0.032 (c) 0.64 (d) 0.6

Answer key

  1. 0.37
  2. 3
  3. 0.054
  4. 0.084
  5. 15.81
  6. 13.46
  7. 0.7
  8. 0.089
  9. 9.43
  10. 80
  11. 13.51
  12. 6.34
  13. 80
  14. 0.034
  15. 0.53
  16. 0.025
  17. 80
  18. 15.26
  19. 8.11
  20. 9.41
  21. 0.23
  22. 0.6
  23. 0.02
  24. 11.48
  25. 0.03
  26. 0.29
  27. 13.67
  28. 40
  29. 0.9
  30. 15.36
  31. 7.88
  32. 9
  33. 10
  34. 0.38
  35. 0.062
  36. 30
  37. 8.21
  38. 0.007
  39. 0.085
  40. 0.032

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