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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 827 · 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 47.819? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  2. 2.5.51 + 8.6 = ? (a) 14.21 (b) 14.01 (c) 14.11 (d) 6.37
  3. 3.What is the value of the digit 7 in 43.167? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  4. 4.What is the value of the digit 5 in 95.162? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  5. 5.What is the value of the digit 3 in 61.342? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  6. 6.7.51 + 3.5 = ? (a) 11.01 (b) 7.86 (c) 10.91 (d) 11.11
  7. 7.Which is the smallest: 0.21, 0.158, 0.025, 0.2? (a) 0.21 (b) 0.158 (c) 0.025 (d) 0.2
  8. 8.4.03 + 3.7 = ? (a) 4.4 (b) 7.73 (c) 7.83 (d) 7.63
  9. 9.8.08 + 1.9 = ? (a) 9.88 (b) 8.27 (c) 9.98 (d) 10.08
  10. 10.1.67 + 2.4 = ? (a) 4.07 (b) 3.97 (c) 1.91 (d) 4.17
  11. 11.Which is the smallest: 0.177, 0.2, 0.23, 0.062? (a) 0.177 (b) 0.2 (c) 0.23 (d) 0.062
  12. 12.5.81 + 2.2 = ? (a) 8.11 (b) 6.03 (c) 8.01 (d) 7.91
  13. 13.What is the value of the digit 7 in 57.918? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  14. 14.7.81 + 8.7 = ? (a) 16.41 (b) 8.68 (c) 16.51 (d) 16.61
  15. 15.Which is the smallest: 0.55, 0.068, 0.496, 0.5? (a) 0.55 (b) 0.068 (c) 0.496 (d) 0.5
  16. 16.2.11 + 3.7 = ? (a) 5.71 (b) 5.81 (c) 2.48 (d) 5.91
  17. 17.2.67 + 7.5 = ? (a) 10.27 (b) 10.07 (c) 3.42 (d) 10.17
  18. 18.What is the value of the digit 4 in 14.269? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  19. 19.What is the value of the digit 6 in 31.657? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  20. 20.What is the value of the digit 3 in 58.931? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  21. 21.Which is the smallest: 0.54, 0.077, 0.454, 0.5? (a) 0.54 (b) 0.077 (c) 0.454 (d) 0.5
  22. 22.What is the value of the digit 2 in 21.497? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  23. 23.5.07 + 9.2 = ? (a) 14.27 (b) 5.99 (c) 14.37 (d) 14.17
  24. 24.Which is the greatest: 0.58, 0.492, 0.026, 0.5? (a) 0.58 (b) 0.492 (c) 0.026 (d) 0.5
  25. 25.8.33 + 2.3 = ? (a) 10.63 (b) 10.53 (c) 8.56 (d) 10.73
  26. 26.1.98 + 8.3 = ? (a) 10.38 (b) 10.18 (c) 10.28 (d) 2.81
  27. 27.What is the value of the digit 3 in 13.425? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  28. 28.What is the value of the digit 8 in 57.813? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  29. 29.9.42 + 7.1 = ? (a) 16.42 (b) 16.52 (c) 16.62 (d) 10.13
  30. 30.What is the value of the digit 3 in 73.651? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  31. 31.7.93 + 2.6 = ? (a) 10.53 (b) 10.63 (c) 8.19 (d) 10.43
  32. 32.4.58 + 6.5 = ? (a) 10.98 (b) 5.23 (c) 11.08 (d) 11.18
  33. 33.5.02 + 3.6 = ? (a) 8.72 (b) 8.52 (c) 8.62 (d) 5.38
  34. 34.Which is the greatest: 0.736, 0.84, 0.8, 0.097? (a) 0.736 (b) 0.84 (c) 0.8 (d) 0.097
  35. 35.What is the value of the digit 7 in 64.379? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  36. 36.What is the value of the digit 2 in 48.192? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  37. 37.Which is the smallest: 0.439, 0.5, 0.56, 0.072? (a) 0.439 (b) 0.5 (c) 0.56 (d) 0.072
  38. 38.7.29 + 1.8 = ? (a) 8.99 (b) 9.19 (c) 7.47 (d) 9.09
  39. 39.Which is the greatest: 0.7, 0.622, 0.097, 0.72? (a) 0.7 (b) 0.622 (c) 0.097 (d) 0.72
  40. 40.Which is the greatest: 0.39, 0.085, 0.3, 0.266? (a) 0.39 (b) 0.085 (c) 0.3 (d) 0.266

Answer key

  1. 0.01
  2. 14.11
  3. 0.007
  4. 5
  5. 0.3
  6. 11.01
  7. 0.025
  8. 7.73
  9. 9.98
  10. 4.07
  11. 0.062
  12. 8.01
  13. 7
  14. 16.51
  15. 0.068
  16. 5.81
  17. 10.17
  18. 4
  19. 0.6
  20. 0.03
  21. 0.077
  22. 20
  23. 14.27
  24. 0.58
  25. 10.63
  26. 10.28
  27. 3
  28. 0.8
  29. 16.52
  30. 3
  31. 10.53
  32. 11.08
  33. 8.62
  34. 0.84
  35. 0.07
  36. 0.002
  37. 0.072
  38. 9.09
  39. 0.72
  40. 0.39

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