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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 477 · 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. 1.6.26 + 7.9 = ? (a) 14.26 (b) 14.16 (c) 7.05 (d) 14.06
  2. 2.Which is the greatest: 0.6, 0.68, 0.513, 0.023? (a) 0.6 (b) 0.68 (c) 0.513 (d) 0.023
  3. 3.9.24 + 4.7 = ? (a) 13.84 (b) 13.94 (c) 14.04 (d) 9.71
  4. 4.What is the value of the digit 8 in 96.458? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  5. 5.What is the value of the digit 9 in 87.269? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  6. 6.What is the value of the digit 6 in 38.162? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  7. 7.2.63 + 5.3 = ? (a) 3.16 (b) 7.83 (c) 7.93 (d) 8.03
  8. 8.Which is the greatest: 0.083, 0.372, 0.41, 0.4? (a) 0.083 (b) 0.372 (c) 0.41 (d) 0.4
  9. 9.What is the value of the digit 6 in 96.785? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  10. 10.Which is the greatest: 0.396, 0.4, 0.42, 0.072? (a) 0.396 (b) 0.4 (c) 0.42 (d) 0.072
  11. 11.What is the value of the digit 4 in 47.683? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  12. 12.6.69 + 5.4 = ? (a) 12.19 (b) 12.09 (c) 11.99 (d) 7.23
  13. 13.What is the value of the digit 5 in 71.354? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  14. 14.Which is the smallest: 0.134, 0.031, 0.24, 0.2? (a) 0.134 (b) 0.031 (c) 0.24 (d) 0.2
  15. 15.Which is the greatest: 0.42, 0.4, 0.059, 0.375? (a) 0.42 (b) 0.4 (c) 0.059 (d) 0.375
  16. 16.8.81 + 9.8 = ? (a) 18.51 (b) 18.71 (c) 9.79 (d) 18.61
  17. 17.What is the value of the digit 7 in 14.973? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  18. 18.Which is the greatest: 0.5, 0.53, 0.442, 0.063? (a) 0.5 (b) 0.53 (c) 0.442 (d) 0.063
  19. 19.Which is the greatest: 0.2, 0.25, 0.097, 0.195? (a) 0.2 (b) 0.25 (c) 0.097 (d) 0.195
  20. 20.2.11 + 5.1 = ? (a) 2.62 (b) 7.11 (c) 7.21 (d) 7.31
  21. 21.6.78 + 8.5 = ? (a) 15.38 (b) 7.63 (c) 15.28 (d) 15.18
  22. 22.What is the value of the digit 9 in 62.194? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  23. 23.What is the value of the digit 2 in 45.283? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  24. 24.What is the value of the digit 4 in 64.317? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  25. 25.7.99 + 1.2 = ? (a) 8.11 (b) 9.29 (c) 9.09 (d) 9.19
  26. 26.Which is the greatest: 0.068, 0.84, 0.773, 0.8? (a) 0.068 (b) 0.84 (c) 0.773 (d) 0.8
  27. 27.Which is the greatest: 0.484, 0.53, 0.051, 0.5? (a) 0.484 (b) 0.53 (c) 0.051 (d) 0.5
  28. 28.What is the value of the digit 5 in 92.456? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  29. 29.4.83 + 6.5 = ? (a) 11.43 (b) 11.23 (c) 11.33 (d) 5.48
  30. 30.What is the value of the digit 3 in 76.385? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  31. 31.What is the value of the digit 8 in 21.847? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  32. 32.Which is the greatest: 0.62, 0.6, 0.572, 0.032? (a) 0.62 (b) 0.6 (c) 0.572 (d) 0.032
  33. 33.What is the value of the digit 7 in 97.245? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  34. 34.5.53 + 7.9 = ? (a) 13.33 (b) 13.43 (c) 13.53 (d) 6.32
  35. 35.What is the value of the digit 9 in 72.986? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  36. 36.What is the value of the digit 4 in 86.324? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  37. 37.5.16 + 1.9 = ? (a) 7.16 (b) 6.96 (c) 5.35 (d) 7.06
  38. 38.Which is the greatest: 0.58, 0.077, 0.5, 0.426? (a) 0.58 (b) 0.077 (c) 0.5 (d) 0.426
  39. 39.6.31 + 1.5 = ? (a) 7.71 (b) 7.81 (c) 7.91 (d) 6.46
  40. 40.2.56 + 9.6 = ? (a) 3.52 (b) 12.26 (c) 12.16 (d) 12.06

Answer key

  1. 14.16
  2. 0.68
  3. 13.94
  4. 0.008
  5. 0.009
  6. 0.06
  7. 7.93
  8. 0.41
  9. 6
  10. 0.42
  11. 40
  12. 12.09
  13. 0.05
  14. 0.031
  15. 0.42
  16. 18.61
  17. 0.07
  18. 0.53
  19. 0.25
  20. 7.21
  21. 15.28
  22. 0.09
  23. 0.2
  24. 4
  25. 9.19
  26. 0.84
  27. 0.53
  28. 0.05
  29. 11.33
  30. 0.3
  31. 0.8
  32. 0.62
  33. 7
  34. 13.43
  35. 0.9
  36. 0.004
  37. 7.06
  38. 0.58
  39. 7.81
  40. 12.16

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