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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 184 · 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. 1.2.25 + 2.9 = ? (a) 5.15 (b) 2.54 (c) 5.05 (d) 5.25
  2. 2.Which is the smallest: 0.522, 0.62, 0.6, 0.085? (a) 0.522 (b) 0.62 (c) 0.6 (d) 0.085
  3. 3.Which is the smallest: 0.028, 0.23, 0.111, 0.2? (a) 0.028 (b) 0.23 (c) 0.111 (d) 0.2
  4. 4.5.45 + 3.6 = ? (a) 9.05 (b) 5.81 (c) 9.15 (d) 8.95
  5. 5.What is the value of the digit 9 in 89.716? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  6. 6.9.23 + 8.3 = ? (a) 10.06 (b) 17.63 (c) 17.43 (d) 17.53
  7. 7.8.09 + 1.5 = ? (a) 9.49 (b) 9.59 (c) 8.24 (d) 9.69
  8. 8.Which is the smallest: 0.293, 0.33, 0.036, 0.3? (a) 0.293 (b) 0.33 (c) 0.036 (d) 0.3
  9. 9.What is the value of the digit 4 in 41.956? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  10. 10.2.65 + 2.5 = ? (a) 5.05 (b) 2.9 (c) 5.15 (d) 5.25
  11. 11.What is the value of the digit 7 in 69.754? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  12. 12.Which is the greatest: 0.156, 0.24, 0.2, 0.068? (a) 0.156 (b) 0.24 (c) 0.2 (d) 0.068
  13. 13.What is the value of the digit 4 in 74.385? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  14. 14.What is the value of the digit 2 in 72.458? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  15. 15.Which is the greatest: 0.87, 0.017, 0.784, 0.8? (a) 0.87 (b) 0.017 (c) 0.784 (d) 0.8
  16. 16.3.64 + 4.1 = ? (a) 4.05 (b) 7.64 (c) 7.74 (d) 7.84
  17. 17.Which is the smallest: 0.463, 0.55, 0.063, 0.5? (a) 0.463 (b) 0.55 (c) 0.063 (d) 0.5
  18. 18.What is the value of the digit 5 in 25.316? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  19. 19.3.73 + 8.4 = ? (a) 12.23 (b) 4.57 (c) 12.13 (d) 12.03
  20. 20.What is the value of the digit 2 in 49.235? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  21. 21.8.11 + 9.8 = ? (a) 9.09 (b) 18.01 (c) 17.91 (d) 17.81
  22. 22.6.43 + 3.1 = ? (a) 9.63 (b) 9.53 (c) 9.43 (d) 6.74
  23. 23.9.02 + 9.1 = ? (a) 18.22 (b) 18.12 (c) 9.93 (d) 18.02
  24. 24.What is the value of the digit 6 in 67.415? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  25. 25.4.88 + 3.7 = ? (a) 5.25 (b) 8.68 (c) 8.58 (d) 8.48
  26. 26.3.13 + 1.1 = ? (a) 3.24 (b) 4.13 (c) 4.33 (d) 4.23
  27. 27.8.77 + 8.1 = ? (a) 9.58 (b) 16.87 (c) 16.77 (d) 16.97
  28. 28.6.04 + 2.3 = ? (a) 8.34 (b) 6.27 (c) 8.44 (d) 8.24
  29. 29.Which is the greatest: 0.4, 0.46, 0.093, 0.317? (a) 0.4 (b) 0.46 (c) 0.093 (d) 0.317
  30. 30.What is the value of the digit 3 in 53.691? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  31. 31.What is the value of the digit 6 in 24.637? (a) 0.06 (b) 6 (c) 0.006 (d) 0.6
  32. 32.What is the value of the digit 2 in 26.394? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  33. 33.7.91 + 5.3 = ? (a) 13.21 (b) 13.11 (c) 13.31 (d) 8.44
  34. 34.Which is the greatest: 0.73, 0.7, 0.697, 0.062? (a) 0.73 (b) 0.7 (c) 0.697 (d) 0.062
  35. 35.What is the value of the digit 6 in 24.156? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  36. 36.8.17 + 3.1 = ? (a) 11.17 (b) 8.48 (c) 11.27 (d) 11.37
  37. 37.What is the value of the digit 1 in 31.465? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  38. 38.What is the value of the digit 3 in 73.619? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  39. 39.7.91 + 8.8 = ? (a) 8.79 (b) 16.81 (c) 16.71 (d) 16.61
  40. 40.4.94 + 5.8 = ? (a) 10.84 (b) 10.74 (c) 10.64 (d) 5.52

Answer key

  1. 5.15
  2. 0.085
  3. 0.028
  4. 9.05
  5. 9
  6. 17.53
  7. 9.59
  8. 0.036
  9. 40
  10. 5.15
  11. 0.7
  12. 0.24
  13. 4
  14. 2
  15. 0.87
  16. 7.74
  17. 0.063
  18. 5
  19. 12.13
  20. 0.2
  21. 17.91
  22. 9.53
  23. 18.12
  24. 60
  25. 8.58
  26. 4.23
  27. 16.87
  28. 8.34
  29. 0.46
  30. 3
  31. 0.6
  32. 20
  33. 13.21
  34. 0.73
  35. 0.006
  36. 11.27
  37. 1
  38. 3
  39. 16.71
  40. 10.74

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