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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 417 · 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 8 in 32.568? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  2. 2.8.18 + 6.8 = ? (a) 15.08 (b) 14.88 (c) 8.86 (d) 14.98
  3. 3.9.37 + 3.1 = ? (a) 12.47 (b) 12.37 (c) 12.57 (d) 9.68
  4. 4.Which is the smallest: 0.014, 0.6, 0.597, 0.68? (a) 0.014 (b) 0.6 (c) 0.597 (d) 0.68
  5. 5.9.59 + 8.1 = ? (a) 17.59 (b) 17.69 (c) 17.79 (d) 10.4
  6. 6.Which is the smallest: 0.162, 0.054, 0.2, 0.29? (a) 0.162 (b) 0.054 (c) 0.2 (d) 0.29
  7. 7.5.32 + 1.6 = ? (a) 5.48 (b) 7.02 (c) 6.92 (d) 6.82
  8. 8.What is the value of the digit 1 in 21.375? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  9. 9.Which is the greatest: 0.49, 0.4, 0.056, 0.312? (a) 0.49 (b) 0.4 (c) 0.056 (d) 0.312
  10. 10.What is the value of the digit 2 in 28.567? (a) 20 (b) 0.02 (c) 2 (d) 0.2
  11. 11.What is the value of the digit 9 in 75.291? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  12. 12.What is the value of the digit 4 in 92.134? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  13. 13.1.48 + 7.9 = ? (a) 9.28 (b) 9.48 (c) 2.27 (d) 9.38
  14. 14.9.67 + 7.9 = ? (a) 17.57 (b) 17.47 (c) 17.67 (d) 10.46
  15. 15.4.92 + 3.4 = ? (a) 5.26 (b) 8.42 (c) 8.32 (d) 8.22
  16. 16.Which is the greatest: 0.641, 0.039, 0.7, 0.73? (a) 0.641 (b) 0.039 (c) 0.7 (d) 0.73
  17. 17.8.58 + 6.1 = ? (a) 14.68 (b) 14.58 (c) 9.19 (d) 14.78
  18. 18.What is the value of the digit 3 in 63.275? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  19. 19.9.67 + 3.7 = ? (a) 10.04 (b) 13.37 (c) 13.27 (d) 13.47
  20. 20.What is the value of the digit 4 in 46.397? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  21. 21.Which is the greatest: 0.038, 0.2, 0.179, 0.23? (a) 0.038 (b) 0.2 (c) 0.179 (d) 0.23
  22. 22.What is the value of the digit 8 in 76.985? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  23. 23.5.91 + 1.7 = ? (a) 6.08 (b) 7.71 (c) 7.51 (d) 7.61
  24. 24.What is the value of the digit 2 in 64.372? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  25. 25.2.24 + 8.6 = ? (a) 10.84 (b) 10.74 (c) 10.94 (d) 3.1
  26. 26.8.51 + 5.8 = ? (a) 14.31 (b) 9.09 (c) 14.41 (d) 14.21
  27. 27.Which is the smallest: 0.542, 0.63, 0.022, 0.6? (a) 0.542 (b) 0.63 (c) 0.022 (d) 0.6
  28. 28.7.98 + 2.1 = ? (a) 10.08 (b) 9.98 (c) 10.18 (d) 8.19
  29. 29.Which is the smallest: 0.36, 0.069, 0.3, 0.234? (a) 0.36 (b) 0.069 (c) 0.3 (d) 0.234
  30. 30.1.58 + 4.4 = ? (a) 2.02 (b) 6.08 (c) 5.88 (d) 5.98
  31. 31.What is the value of the digit 6 in 56.349? (a) 6 (b) 0.6 (c) 60 (d) 0.06
  32. 32.Which is the smallest: 0.088, 0.7, 0.616, 0.75? (a) 0.088 (b) 0.7 (c) 0.616 (d) 0.75
  33. 33.Which is the smallest: 0.61, 0.6, 0.073, 0.538? (a) 0.61 (b) 0.6 (c) 0.073 (d) 0.538
  34. 34.What is the value of the digit 4 in 34.921? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  35. 35.Which is the greatest: 0.547, 0.064, 0.61, 0.6? (a) 0.547 (b) 0.064 (c) 0.61 (d) 0.6
  36. 36.7.89 + 1.7 = ? (a) 8.06 (b) 9.69 (c) 9.59 (d) 9.49
  37. 37.2.71 + 5.8 = ? (a) 8.41 (b) 3.29 (c) 8.61 (d) 8.51
  38. 38.3.03 + 2.6 = ? (a) 3.29 (b) 5.53 (c) 5.63 (d) 5.73
  39. 39.What is the value of the digit 5 in 56.172? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  40. 40.6.97 + 6.4 = ? (a) 13.27 (b) 13.37 (c) 7.61 (d) 13.47

Answer key

  1. 0.008
  2. 14.98
  3. 12.47
  4. 0.014
  5. 17.69
  6. 0.054
  7. 6.92
  8. 1
  9. 0.49
  10. 20
  11. 0.09
  12. 0.004
  13. 9.38
  14. 17.57
  15. 8.32
  16. 0.73
  17. 14.68
  18. 3
  19. 13.37
  20. 40
  21. 0.23
  22. 0.08
  23. 7.61
  24. 0.002
  25. 10.84
  26. 14.31
  27. 0.022
  28. 10.08
  29. 0.069
  30. 5.98
  31. 6
  32. 0.088
  33. 0.073
  34. 4
  35. 0.61
  36. 9.59
  37. 8.51
  38. 5.63
  39. 50
  40. 13.37

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