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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 506 · 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 54.183? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  2. 2.Which is the smallest: 0.46, 0.357, 0.4, 0.042? (a) 0.46 (b) 0.357 (c) 0.4 (d) 0.042
  3. 3.Which is the greatest: 0.473, 0.51, 0.042, 0.5? (a) 0.473 (b) 0.51 (c) 0.042 (d) 0.5
  4. 4.3.58 + 2.1 = ? (a) 5.78 (b) 3.79 (c) 5.68 (d) 5.58
  5. 5.2.47 + 3.3 = ? (a) 5.67 (b) 5.77 (c) 2.8 (d) 5.87
  6. 6.What is the value of the digit 7 in 37.928? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  7. 7.What is the value of the digit 4 in 41.296? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  8. 8.7.49 + 5.9 = ? (a) 13.39 (b) 8.08 (c) 13.49 (d) 13.29
  9. 9.Which is the smallest: 0.25, 0.152, 0.019, 0.2? (a) 0.25 (b) 0.152 (c) 0.019 (d) 0.2
  10. 10.What is the value of the digit 1 in 19.687? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  11. 11.What is the value of the digit 6 in 14.693? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  12. 12.What is the value of the digit 4 in 97.341? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  13. 13.Which is the greatest: 0.217, 0.067, 0.32, 0.3? (a) 0.217 (b) 0.067 (c) 0.32 (d) 0.3
  14. 14.What is the value of the digit 1 in 98.154? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  15. 15.2.23 + 7.5 = ? (a) 9.83 (b) 9.63 (c) 9.73 (d) 2.98
  16. 16.Which is the greatest: 0.3, 0.35, 0.283, 0.065? (a) 0.3 (b) 0.35 (c) 0.283 (d) 0.065
  17. 17.4.58 + 9.3 = ? (a) 13.78 (b) 13.88 (c) 13.98 (d) 5.51
  18. 18.3.54 + 2.2 = ? (a) 5.64 (b) 5.84 (c) 3.76 (d) 5.74
  19. 19.What is the value of the digit 2 in 89.261? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  20. 20.What is the value of the digit 6 in 51.693? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  21. 21.What is the value of the digit 2 in 26.415? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  22. 22.3.93 + 5.4 = ? (a) 9.23 (b) 9.33 (c) 4.47 (d) 9.43
  23. 23.What is the value of the digit 3 in 54.372? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  24. 24.9.19 + 1.9 = ? (a) 9.38 (b) 11.19 (c) 10.99 (d) 11.09
  25. 25.What is the value of the digit 1 in 21.795? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  26. 26.What is the value of the digit 2 in 16.295? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  27. 27.Which is the smallest: 0.181, 0.2, 0.026, 0.29? (a) 0.181 (b) 0.2 (c) 0.026 (d) 0.29
  28. 28.Which is the smallest: 0.3, 0.266, 0.32, 0.065? (a) 0.3 (b) 0.266 (c) 0.32 (d) 0.065
  29. 29.2.53 + 5.6 = ? (a) 8.03 (b) 8.23 (c) 3.09 (d) 8.13
  30. 30.Which is the smallest: 0.3, 0.082, 0.32, 0.211? (a) 0.3 (b) 0.082 (c) 0.32 (d) 0.211
  31. 31.7.27 + 9.2 = ? (a) 16.37 (b) 16.47 (c) 16.57 (d) 8.19
  32. 32.9.31 + 6.4 = ? (a) 15.71 (b) 15.81 (c) 9.95 (d) 15.61
  33. 33.What is the value of the digit 6 in 72.156? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  34. 34.3.63 + 1.3 = ? (a) 3.76 (b) 4.83 (c) 4.93 (d) 5.03
  35. 35.1.89 + 8.9 = ? (a) 10.69 (b) 2.78 (c) 10.79 (d) 10.89
  36. 36.2.88 + 3.8 = ? (a) 6.78 (b) 3.26 (c) 6.58 (d) 6.68
  37. 37.4.06 + 1.6 = ? (a) 4.22 (b) 5.76 (c) 5.66 (d) 5.56
  38. 38.What is the value of the digit 7 in 89.172? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  39. 39.6.63 + 3.1 = ? (a) 9.63 (b) 9.73 (c) 6.94 (d) 9.83
  40. 40.Which is the greatest: 0.7, 0.054, 0.698, 0.74? (a) 0.7 (b) 0.054 (c) 0.698 (d) 0.74

Answer key

  1. 0.003
  2. 0.042
  3. 0.51
  4. 5.68
  5. 5.77
  6. 7
  7. 40
  8. 13.39
  9. 0.019
  10. 10
  11. 0.6
  12. 0.04
  13. 0.32
  14. 0.1
  15. 9.73
  16. 0.35
  17. 13.88
  18. 5.74
  19. 0.2
  20. 0.6
  21. 20
  22. 9.33
  23. 0.3
  24. 11.09
  25. 1
  26. 0.2
  27. 0.026
  28. 0.065
  29. 8.13
  30. 0.082
  31. 16.47
  32. 15.71
  33. 0.006
  34. 4.93
  35. 10.79
  36. 6.68
  37. 5.66
  38. 0.07
  39. 9.73
  40. 0.74

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