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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 956 · 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. 1.9.34 + 2.8 = ? (a) 12.14 (b) 12.04 (c) 12.24 (d) 9.62
  2. 2.1.94 + 5.9 = ? (a) 7.84 (b) 7.74 (c) 7.94 (d) 2.53
  3. 3.What is the value of the digit 9 in 69.821? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  4. 4.What is the value of the digit 4 in 39.574? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  5. 5.Which is the smallest: 0.8, 0.021, 0.748, 0.89? (a) 0.8 (b) 0.021 (c) 0.748 (d) 0.89
  6. 6.3.84 + 1.3 = ? (a) 5.14 (b) 5.24 (c) 3.97 (d) 5.04
  7. 7.What is the value of the digit 2 in 62.935? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  8. 8.3.19 + 6.9 = ? (a) 9.99 (b) 10.09 (c) 3.88 (d) 10.19
  9. 9.What is the value of the digit 5 in 45.728? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  10. 10.Which is the smallest: 0.39, 0.258, 0.3, 0.043? (a) 0.39 (b) 0.258 (c) 0.3 (d) 0.043
  11. 11.What is the value of the digit 9 in 29.186? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  12. 12.Which is the greatest: 0.73, 0.7, 0.659, 0.014? (a) 0.73 (b) 0.7 (c) 0.659 (d) 0.014
  13. 13.9.89 + 7.2 = ? (a) 10.61 (b) 16.99 (c) 17.09 (d) 17.19
  14. 14.5.67 + 2.9 = ? (a) 8.47 (b) 5.96 (c) 8.67 (d) 8.57
  15. 15.What is the value of the digit 4 in 46.893? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  16. 16.5.55 + 1.1 = ? (a) 6.55 (b) 6.75 (c) 5.66 (d) 6.65
  17. 17.What is the value of the digit 5 in 16.579? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  18. 18.2.51 + 7.8 = ? (a) 10.31 (b) 3.29 (c) 10.41 (d) 10.21
  19. 19.9.25 + 9.1 = ? (a) 10.16 (b) 18.35 (c) 18.25 (d) 18.45
  20. 20.Which is the greatest: 0.4, 0.015, 0.49, 0.342? (a) 0.4 (b) 0.015 (c) 0.49 (d) 0.342
  21. 21.What is the value of the digit 1 in 18.235? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  22. 22.2.37 + 4.6 = ? (a) 2.83 (b) 7.07 (c) 6.97 (d) 6.87
  23. 23.What is the value of the digit 8 in 38.219? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  24. 24.3.89 + 5.9 = ? (a) 9.89 (b) 4.48 (c) 9.69 (d) 9.79
  25. 25.2.63 + 9.6 = ? (a) 12.23 (b) 3.59 (c) 12.33 (d) 12.13
  26. 26.Which is the smallest: 0.024, 0.7, 0.651, 0.77? (a) 0.024 (b) 0.7 (c) 0.651 (d) 0.77
  27. 27.What is the value of the digit 1 in 71.826? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  28. 28.What is the value of the digit 4 in 49.812? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  29. 29.Which is the smallest: 0.285, 0.021, 0.32, 0.3? (a) 0.285 (b) 0.021 (c) 0.32 (d) 0.3
  30. 30.Which is the greatest: 0.296, 0.059, 0.3, 0.39? (a) 0.296 (b) 0.059 (c) 0.3 (d) 0.39
  31. 31.7.18 + 5.8 = ? (a) 13.08 (b) 7.76 (c) 12.98 (d) 12.88
  32. 32.Which is the greatest: 0.4, 0.055, 0.47, 0.338? (a) 0.4 (b) 0.055 (c) 0.47 (d) 0.338
  33. 33.7.63 + 5.5 = ? (a) 13.23 (b) 8.18 (c) 13.03 (d) 13.13
  34. 34.What is the value of the digit 4 in 43.827? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  35. 35.What is the value of the digit 3 in 78.543? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  36. 36.1.69 + 3.7 = ? (a) 2.06 (b) 5.49 (c) 5.29 (d) 5.39
  37. 37.6.84 + 3.6 = ? (a) 10.54 (b) 10.34 (c) 10.44 (d) 7.2
  38. 38.What is the value of the digit 1 in 18.293? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  39. 39.Which is the greatest: 0.013, 0.568, 0.62, 0.6? (a) 0.013 (b) 0.568 (c) 0.62 (d) 0.6
  40. 40.What is the value of the digit 1 in 14.769? (a) 0.1 (b) 1 (c) 10 (d) 0.01

Answer key

  1. 12.14
  2. 7.84
  3. 9
  4. 0.004
  5. 0.021
  6. 5.14
  7. 2
  8. 10.09
  9. 5
  10. 0.043
  11. 9
  12. 0.73
  13. 17.09
  14. 8.57
  15. 40
  16. 6.65
  17. 0.5
  18. 10.31
  19. 18.35
  20. 0.49
  21. 10
  22. 6.97
  23. 8
  24. 9.79
  25. 12.23
  26. 0.024
  27. 1
  28. 40
  29. 0.021
  30. 0.39
  31. 12.98
  32. 0.47
  33. 13.13
  34. 40
  35. 0.003
  36. 5.39
  37. 10.44
  38. 10
  39. 0.62
  40. 10

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