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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 315 · 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 3 in 43.296? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  2. 2.3.81 + 5.1 = ? (a) 9.01 (b) 4.32 (c) 8.91 (d) 8.81
  3. 3.5.93 + 3.1 = ? (a) 9.03 (b) 9.13 (c) 8.93 (d) 6.24
  4. 4.4.21 + 3.8 = ? (a) 8.11 (b) 8.01 (c) 4.59 (d) 7.91
  5. 5.Which is the greatest: 0.3, 0.068, 0.39, 0.234? (a) 0.3 (b) 0.068 (c) 0.39 (d) 0.234
  6. 6.Which is the greatest: 0.053, 0.694, 0.7, 0.74? (a) 0.053 (b) 0.694 (c) 0.7 (d) 0.74
  7. 7.What is the value of the digit 6 in 69.485? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  8. 8.Which is the smallest: 0.018, 0.57, 0.5, 0.429? (a) 0.018 (b) 0.57 (c) 0.5 (d) 0.429
  9. 9.What is the value of the digit 9 in 75.469? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  10. 10.Which is the smallest: 0.273, 0.079, 0.35, 0.3? (a) 0.273 (b) 0.079 (c) 0.35 (d) 0.3
  11. 11.Which is the smallest: 0.52, 0.043, 0.449, 0.5? (a) 0.52 (b) 0.043 (c) 0.449 (d) 0.5
  12. 12.1.86 + 2.5 = ? (a) 2.11 (b) 4.36 (c) 4.46 (d) 4.26
  13. 13.Which is the smallest: 0.2, 0.135, 0.059, 0.22? (a) 0.2 (b) 0.135 (c) 0.059 (d) 0.22
  14. 14.1.11 + 1.4 = ? (a) 2.51 (b) 2.61 (c) 1.25 (d) 2.41
  15. 15.6.89 + 2.2 = ? (a) 7.11 (b) 8.99 (c) 9.09 (d) 9.19
  16. 16.3.82 + 5.2 = ? (a) 4.34 (b) 9.02 (c) 9.12 (d) 8.92
  17. 17.What is the value of the digit 5 in 68.435? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  18. 18.What is the value of the digit 2 in 82.539? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  19. 19.Which is the smallest: 0.75, 0.7, 0.089, 0.642? (a) 0.75 (b) 0.7 (c) 0.089 (d) 0.642
  20. 20.2.42 + 3.1 = ? (a) 5.52 (b) 2.73 (c) 5.42 (d) 5.62
  21. 21.7.47 + 9.8 = ? (a) 8.45 (b) 17.37 (c) 17.27 (d) 17.17
  22. 22.6.89 + 3.6 = ? (a) 7.25 (b) 10.49 (c) 10.39 (d) 10.59
  23. 23.4.97 + 4.8 = ? (a) 9.87 (b) 9.67 (c) 5.45 (d) 9.77
  24. 24.Which is the greatest: 0.695, 0.048, 0.7, 0.73? (a) 0.695 (b) 0.048 (c) 0.7 (d) 0.73
  25. 25.3.73 + 6.4 = ? (a) 4.37 (b) 10.13 (c) 10.23 (d) 10.03
  26. 26.2.41 + 7.2 = ? (a) 9.61 (b) 9.51 (c) 9.71 (d) 3.13
  27. 27.4.29 + 3.8 = ? (a) 4.67 (b) 8.19 (c) 7.99 (d) 8.09
  28. 28.2.45 + 2.7 = ? (a) 2.72 (b) 5.25 (c) 5.15 (d) 5.05
  29. 29.Which is the smallest: 0.069, 0.67, 0.6, 0.573? (a) 0.069 (b) 0.67 (c) 0.6 (d) 0.573
  30. 30.5.51 + 1.1 = ? (a) 5.62 (b) 6.71 (c) 6.51 (d) 6.61
  31. 31.Which is the greatest: 0.087, 0.48, 0.4, 0.364? (a) 0.087 (b) 0.48 (c) 0.4 (d) 0.364
  32. 32.3.18 + 9.5 = ? (a) 12.78 (b) 12.58 (c) 4.13 (d) 12.68
  33. 33.What is the value of the digit 3 in 19.356? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  34. 34.1.71 + 5.1 = ? (a) 6.81 (b) 6.71 (c) 2.22 (d) 6.91
  35. 35.5.94 + 4.1 = ? (a) 6.35 (b) 9.94 (c) 10.14 (d) 10.04
  36. 36.2.35 + 5.2 = ? (a) 7.65 (b) 2.87 (c) 7.55 (d) 7.45
  37. 37.What is the value of the digit 6 in 63.514? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  38. 38.What is the value of the digit 3 in 56.438? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  39. 39.What is the value of the digit 2 in 83.624? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  40. 40.2.22 + 2.3 = ? (a) 4.62 (b) 2.45 (c) 4.52 (d) 4.42

Answer key

  1. 3
  2. 8.91
  3. 9.03
  4. 8.01
  5. 0.39
  6. 0.74
  7. 60
  8. 0.018
  9. 0.009
  10. 0.079
  11. 0.043
  12. 4.36
  13. 0.059
  14. 2.51
  15. 9.09
  16. 9.02
  17. 0.005
  18. 2
  19. 0.089
  20. 5.52
  21. 17.27
  22. 10.49
  23. 9.77
  24. 0.73
  25. 10.13
  26. 9.61
  27. 8.09
  28. 5.15
  29. 0.069
  30. 6.61
  31. 0.48
  32. 12.68
  33. 0.3
  34. 6.81
  35. 10.04
  36. 7.55
  37. 60
  38. 0.03
  39. 0.02
  40. 4.52

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