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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 319 · 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. 1.5.49 + 5.5 = ? (a) 11.09 (b) 10.89 (c) 10.99 (d) 6.04
  2. 2.What is the value of the digit 4 in 12.547? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  3. 3.2.95 + 5.2 = ? (a) 8.05 (b) 3.47 (c) 8.25 (d) 8.15
  4. 4.9.44 + 6.6 = ? (a) 10.1 (b) 15.94 (c) 16.14 (d) 16.04
  5. 5.What is the value of the digit 7 in 76.512? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  6. 6.3.68 + 5.3 = ? (a) 8.88 (b) 8.98 (c) 9.08 (d) 4.21
  7. 7.What is the value of the digit 9 in 68.359? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  8. 8.Which is the greatest: 0.74, 0.628, 0.7, 0.011? (a) 0.74 (b) 0.628 (c) 0.7 (d) 0.011
  9. 9.7.51 + 7.8 = ? (a) 15.41 (b) 8.29 (c) 15.21 (d) 15.31
  10. 10.What is the value of the digit 4 in 28.714? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  11. 11.What is the value of the digit 9 in 59.174? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  12. 12.What is the value of the digit 6 in 31.649? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  13. 13.7.99 + 1.3 = ? (a) 8.12 (b) 9.19 (c) 9.29 (d) 9.39
  14. 14.What is the value of the digit 5 in 21.385? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  15. 15.Which is the smallest: 0.6, 0.66, 0.573, 0.015? (a) 0.6 (b) 0.66 (c) 0.573 (d) 0.015
  16. 16.Which is the greatest: 0.285, 0.026, 0.3, 0.38? (a) 0.285 (b) 0.026 (c) 0.3 (d) 0.38
  17. 17.What is the value of the digit 7 in 27.983? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  18. 18.Which is the smallest: 0.427, 0.5, 0.52, 0.071? (a) 0.427 (b) 0.5 (c) 0.52 (d) 0.071
  19. 19.Which is the smallest: 0.476, 0.57, 0.031, 0.5? (a) 0.476 (b) 0.57 (c) 0.031 (d) 0.5
  20. 20.What is the value of the digit 5 in 52.178? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  21. 21.1.51 + 6.9 = ? (a) 8.51 (b) 2.2 (c) 8.41 (d) 8.31
  22. 22.Which is the smallest: 0.2, 0.016, 0.21, 0.146? (a) 0.2 (b) 0.016 (c) 0.21 (d) 0.146
  23. 23.Which is the smallest: 0.7, 0.669, 0.73, 0.015? (a) 0.7 (b) 0.669 (c) 0.73 (d) 0.015
  24. 24.What is the value of the digit 6 in 95.362? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  25. 25.What is the value of the digit 9 in 97.235? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  26. 26.8.01 + 5.1 = ? (a) 13.21 (b) 13.11 (c) 13.01 (d) 8.52
  27. 27.Which is the greatest: 0.256, 0.026, 0.33, 0.3? (a) 0.256 (b) 0.026 (c) 0.33 (d) 0.3
  28. 28.9.41 + 8.2 = ? (a) 17.51 (b) 17.71 (c) 10.23 (d) 17.61
  29. 29.What is the value of the digit 3 in 93.527? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  30. 30.1.58 + 5.5 = ? (a) 7.18 (b) 2.13 (c) 7.08 (d) 6.98
  31. 31.What is the value of the digit 4 in 92.458? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  32. 32.What is the value of the digit 1 in 38.716? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  33. 33.Which is the smallest: 0.523, 0.66, 0.6, 0.065? (a) 0.523 (b) 0.66 (c) 0.6 (d) 0.065
  34. 34.Which is the smallest: 0.272, 0.061, 0.3, 0.32? (a) 0.272 (b) 0.061 (c) 0.3 (d) 0.32
  35. 35.Which is the greatest: 0.275, 0.3, 0.096, 0.37? (a) 0.275 (b) 0.3 (c) 0.096 (d) 0.37
  36. 36.8.72 + 4.5 = ? (a) 9.17 (b) 13.32 (c) 13.12 (d) 13.22
  37. 37.5.31 + 9.8 = ? (a) 15.01 (b) 6.29 (c) 15.11 (d) 15.21
  38. 38.4.39 + 8.8 = ? (a) 13.19 (b) 13.29 (c) 13.09 (d) 5.27
  39. 39.5.31 + 2.3 = ? (a) 7.71 (b) 5.54 (c) 7.51 (d) 7.61
  40. 40.What is the value of the digit 5 in 24.563? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5

Answer key

  1. 10.99
  2. 0.04
  3. 8.15
  4. 16.04
  5. 70
  6. 8.98
  7. 0.009
  8. 0.74
  9. 15.31
  10. 0.004
  11. 9
  12. 0.6
  13. 9.29
  14. 0.005
  15. 0.015
  16. 0.38
  17. 7
  18. 0.071
  19. 0.031
  20. 50
  21. 8.41
  22. 0.016
  23. 0.015
  24. 0.06
  25. 90
  26. 13.11
  27. 0.33
  28. 17.61
  29. 3
  30. 7.08
  31. 0.4
  32. 0.01
  33. 0.065
  34. 0.061
  35. 0.37
  36. 13.22
  37. 15.11
  38. 13.19
  39. 7.61
  40. 0.5

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