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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 872 · 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: 0.7, 0.087, 0.641, 0.72? (a) 0.7 (b) 0.087 (c) 0.641 (d) 0.72
  2. 2.4.32 + 2.3 = ? (a) 6.72 (b) 6.52 (c) 6.62 (d) 4.55
  3. 3.Which is the greatest: 0.8, 0.089, 0.735, 0.89? (a) 0.8 (b) 0.089 (c) 0.735 (d) 0.89
  4. 4.7.83 + 6.8 = ? (a) 8.51 (b) 14.53 (c) 14.63 (d) 14.73
  5. 5.What is the value of the digit 5 in 82.954? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  6. 6.9.51 + 4.1 = ? (a) 13.51 (b) 9.92 (c) 13.71 (d) 13.61
  7. 7.What is the value of the digit 1 in 54.132? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  8. 8.8.08 + 3.5 = ? (a) 11.48 (b) 8.43 (c) 11.58 (d) 11.68
  9. 9.What is the value of the digit 1 in 17.923? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  10. 10.8.56 + 9.2 = ? (a) 17.66 (b) 17.86 (c) 17.76 (d) 9.48
  11. 11.Which is the smallest: 0.8, 0.736, 0.075, 0.86? (a) 0.8 (b) 0.736 (c) 0.075 (d) 0.86
  12. 12.7.89 + 6.1 = ? (a) 13.99 (b) 14.09 (c) 8.5 (d) 13.89
  13. 13.What is the value of the digit 2 in 62.384? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  14. 14.What is the value of the digit 2 in 15.249? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  15. 15.1.53 + 1.9 = ? (a) 1.72 (b) 3.53 (c) 3.33 (d) 3.43
  16. 16.Which is the greatest: 0.416, 0.53, 0.014, 0.5? (a) 0.416 (b) 0.53 (c) 0.014 (d) 0.5
  17. 17.What is the value of the digit 6 in 91.246? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  18. 18.6.52 + 3.5 = ? (a) 9.92 (b) 6.87 (c) 10.02 (d) 10.12
  19. 19.What is the value of the digit 1 in 26.418? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  20. 20.3.74 + 3.6 = ? (a) 4.1 (b) 7.24 (c) 7.34 (d) 7.44
  21. 21.Which is the greatest: 0.5, 0.093, 0.483, 0.53? (a) 0.5 (b) 0.093 (c) 0.483 (d) 0.53
  22. 22.Which is the smallest: 0.022, 0.6, 0.523, 0.64? (a) 0.022 (b) 0.6 (c) 0.523 (d) 0.64
  23. 23.What is the value of the digit 4 in 15.498? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  24. 24.1.47 + 4.7 = ? (a) 6.17 (b) 1.94 (c) 6.07 (d) 6.27
  25. 25.9.13 + 1.6 = ? (a) 10.63 (b) 10.83 (c) 10.73 (d) 9.29
  26. 26.What is the value of the digit 8 in 24.783? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  27. 27.4.77 + 8.1 = ? (a) 12.97 (b) 12.77 (c) 5.58 (d) 12.87
  28. 28.7.47 + 4.9 = ? (a) 12.27 (b) 12.37 (c) 12.47 (d) 7.96
  29. 29.Which is the greatest: 0.28, 0.158, 0.054, 0.2? (a) 0.28 (b) 0.158 (c) 0.054 (d) 0.2
  30. 30.8.38 + 9.4 = ? (a) 17.88 (b) 9.32 (c) 17.68 (d) 17.78
  31. 31.9.34 + 3.1 = ? (a) 12.34 (b) 9.65 (c) 12.44 (d) 12.54
  32. 32.Which is the smallest: 0.34, 0.018, 0.3, 0.262? (a) 0.34 (b) 0.018 (c) 0.3 (d) 0.262
  33. 33.Which is the greatest: 0.041, 0.25, 0.2, 0.166? (a) 0.041 (b) 0.25 (c) 0.2 (d) 0.166
  34. 34.Which is the greatest: 0.3, 0.028, 0.33, 0.217? (a) 0.3 (b) 0.028 (c) 0.33 (d) 0.217
  35. 35.1.71 + 1.1 = ? (a) 2.81 (b) 2.91 (c) 1.82 (d) 2.71
  36. 36.What is the value of the digit 5 in 92.165? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  37. 37.3.56 + 7.4 = ? (a) 10.86 (b) 10.96 (c) 11.06 (d) 4.3
  38. 38.What is the value of the digit 2 in 56.427? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  39. 39.What is the value of the digit 6 in 64.358? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  40. 40.What is the value of the digit 2 in 56.328? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02

Answer key

  1. 0.087
  2. 6.62
  3. 0.89
  4. 14.63
  5. 0.05
  6. 13.61
  7. 0.1
  8. 11.58
  9. 10
  10. 17.76
  11. 0.075
  12. 13.99
  13. 2
  14. 0.2
  15. 3.43
  16. 0.53
  17. 0.006
  18. 10.02
  19. 0.01
  20. 7.34
  21. 0.53
  22. 0.022
  23. 0.4
  24. 6.17
  25. 10.73
  26. 0.08
  27. 12.87
  28. 12.37
  29. 0.28
  30. 17.78
  31. 12.44
  32. 0.018
  33. 0.25
  34. 0.33
  35. 2.81
  36. 0.005
  37. 10.96
  38. 0.02
  39. 60
  40. 0.02

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