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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 951 · 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: 0.739, 0.061, 0.8, 0.81? (a) 0.739 (b) 0.061 (c) 0.8 (d) 0.81
  2. 2.What is the value of the digit 6 in 67.189? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  3. 3.What is the value of the digit 5 in 86.453? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  4. 4.What is the value of the digit 4 in 75.924? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  5. 5.3.33 + 8.6 = ? (a) 11.93 (b) 11.83 (c) 12.03 (d) 4.19
  6. 6.Which is the greatest: 0.3, 0.255, 0.31, 0.094? (a) 0.3 (b) 0.255 (c) 0.31 (d) 0.094
  7. 7.What is the value of the digit 3 in 36.759? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  8. 8.What is the value of the digit 3 in 65.347? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  9. 9.3.85 + 1.9 = ? (a) 5.75 (b) 5.85 (c) 4.04 (d) 5.65
  10. 10.4.56 + 4.4 = ? (a) 8.86 (b) 8.96 (c) 9.06 (d) 5
  11. 11.Which is the greatest: 0.046, 0.6, 0.538, 0.68? (a) 0.046 (b) 0.6 (c) 0.538 (d) 0.68
  12. 12.What is the value of the digit 8 in 98.361? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  13. 13.Which is the smallest: 0.282, 0.3, 0.33, 0.072? (a) 0.282 (b) 0.3 (c) 0.33 (d) 0.072
  14. 14.What is the value of the digit 9 in 79.163? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  15. 15.Which is the smallest: 0.38, 0.3, 0.024, 0.265? (a) 0.38 (b) 0.3 (c) 0.024 (d) 0.265
  16. 16.What is the value of the digit 4 in 29.741? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  17. 17.What is the value of the digit 7 in 74.568? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  18. 18.3.34 + 6.3 = ? (a) 9.74 (b) 9.64 (c) 9.54 (d) 3.97
  19. 19.3.91 + 6.4 = ? (a) 10.41 (b) 4.55 (c) 10.21 (d) 10.31
  20. 20.Which is the greatest: 0.552, 0.66, 0.093, 0.6? (a) 0.552 (b) 0.66 (c) 0.093 (d) 0.6
  21. 21.9.83 + 8.1 = ? (a) 17.83 (b) 17.93 (c) 18.03 (d) 10.64
  22. 22.What is the value of the digit 8 in 58.631? (a) 80 (b) 0.8 (c) 0.08 (d) 8
  23. 23.5.07 + 5.2 = ? (a) 10.37 (b) 5.59 (c) 10.17 (d) 10.27
  24. 24.3.27 + 8.4 = ? (a) 11.77 (b) 4.11 (c) 11.57 (d) 11.67
  25. 25.7.91 + 3.2 = ? (a) 11.01 (b) 8.23 (c) 11.11 (d) 11.21
  26. 26.3.26 + 5.6 = ? (a) 3.82 (b) 8.96 (c) 8.86 (d) 8.76
  27. 27.2.37 + 9.2 = ? (a) 11.57 (b) 11.67 (c) 3.29 (d) 11.47
  28. 28.What is the value of the digit 2 in 21.367? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  29. 29.9.61 + 2.7 = ? (a) 12.21 (b) 12.31 (c) 9.88 (d) 12.41
  30. 30.5.47 + 3.8 = ? (a) 9.17 (b) 9.37 (c) 9.27 (d) 5.85
  31. 31.2.92 + 8.2 = ? (a) 11.02 (b) 3.74 (c) 11.22 (d) 11.12
  32. 32.Which is the greatest: 0.044, 0.6, 0.572, 0.68? (a) 0.044 (b) 0.6 (c) 0.572 (d) 0.68
  33. 33.6.24 + 7.3 = ? (a) 13.44 (b) 6.97 (c) 13.54 (d) 13.64
  34. 34.What is the value of the digit 5 in 23.579? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  35. 35.What is the value of the digit 7 in 65.347? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  36. 36.Which is the greatest: 0.67, 0.025, 0.519, 0.6? (a) 0.67 (b) 0.025 (c) 0.519 (d) 0.6
  37. 37.Which is the smallest: 0.67, 0.6, 0.071, 0.568? (a) 0.67 (b) 0.6 (c) 0.071 (d) 0.568
  38. 38.4.51 + 7.6 = ? (a) 12.11 (b) 12.01 (c) 5.27 (d) 12.21
  39. 39.What is the value of the digit 3 in 28.953? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  40. 40.5.87 + 3.7 = ? (a) 9.47 (b) 9.67 (c) 9.57 (d) 6.24

Answer key

  1. 0.81
  2. 60
  3. 0.05
  4. 0.004
  5. 11.93
  6. 0.31
  7. 30
  8. 0.3
  9. 5.75
  10. 8.96
  11. 0.68
  12. 8
  13. 0.072
  14. 9
  15. 0.024
  16. 0.04
  17. 70
  18. 9.64
  19. 10.31
  20. 0.66
  21. 17.93
  22. 8
  23. 10.27
  24. 11.67
  25. 11.11
  26. 8.86
  27. 11.57
  28. 20
  29. 12.31
  30. 9.27
  31. 11.12
  32. 0.68
  33. 13.54
  34. 0.5
  35. 0.007
  36. 0.67
  37. 0.071
  38. 12.11
  39. 0.003
  40. 9.57

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