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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 738 · 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.Which is the smallest: 0.252, 0.32, 0.077, 0.3? (a) 0.252 (b) 0.32 (c) 0.077 (d) 0.3
  2. 2.What is the value of the digit 1 in 31.927? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  3. 3.What is the value of the digit 9 in 89.654? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  4. 4.What is the value of the digit 8 in 14.938? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  5. 5.What is the value of the digit 5 in 72.154? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  6. 6.What is the value of the digit 1 in 16.457? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  7. 7.What is the value of the digit 7 in 42.517? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  8. 8.Which is the smallest: 0.073, 0.3, 0.283, 0.37? (a) 0.073 (b) 0.3 (c) 0.283 (d) 0.37
  9. 9.3.61 + 7.1 = ? (a) 10.71 (b) 10.61 (c) 10.81 (d) 4.32
  10. 10.What is the value of the digit 6 in 61.532? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  11. 11.3.57 + 1.8 = ? (a) 5.47 (b) 3.75 (c) 5.37 (d) 5.27
  12. 12.1.31 + 3.3 = ? (a) 4.71 (b) 4.51 (c) 4.61 (d) 1.64
  13. 13.7.13 + 8.3 = ? (a) 15.33 (b) 7.96 (c) 15.53 (d) 15.43
  14. 14.Which is the smallest: 0.489, 0.52, 0.5, 0.034? (a) 0.489 (b) 0.52 (c) 0.5 (d) 0.034
  15. 15.8.12 + 9.1 = ? (a) 17.32 (b) 17.22 (c) 17.12 (d) 9.03
  16. 16.What is the value of the digit 7 in 65.437? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  17. 17.What is the value of the digit 1 in 48.167? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  18. 18.4.34 + 6.5 = ? (a) 4.99 (b) 10.94 (c) 10.74 (d) 10.84
  19. 19.1.63 + 5.9 = ? (a) 7.63 (b) 7.53 (c) 7.43 (d) 2.22
  20. 20.Which is the smallest: 0.651, 0.7, 0.075, 0.77? (a) 0.651 (b) 0.7 (c) 0.075 (d) 0.77
  21. 21.What is the value of the digit 7 in 14.237? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  22. 22.Which is the greatest: 0.3, 0.263, 0.39, 0.084? (a) 0.3 (b) 0.263 (c) 0.39 (d) 0.084
  23. 23.What is the value of the digit 9 in 83.497? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  24. 24.Which is the smallest: 0.29, 0.123, 0.2, 0.096? (a) 0.29 (b) 0.123 (c) 0.2 (d) 0.096
  25. 25.4.14 + 2.8 = ? (a) 4.42 (b) 6.84 (c) 7.04 (d) 6.94
  26. 26.5.08 + 5.4 = ? (a) 5.62 (b) 10.58 (c) 10.48 (d) 10.38
  27. 27.Which is the smallest: 0.2, 0.033, 0.24, 0.119? (a) 0.2 (b) 0.033 (c) 0.24 (d) 0.119
  28. 28.3.34 + 6.1 = ? (a) 9.54 (b) 9.34 (c) 3.95 (d) 9.44
  29. 29.Which is the greatest: 0.6, 0.564, 0.036, 0.65? (a) 0.6 (b) 0.564 (c) 0.036 (d) 0.65
  30. 30.Which is the greatest: 0.095, 0.3, 0.234, 0.31? (a) 0.095 (b) 0.3 (c) 0.234 (d) 0.31
  31. 31.Which is the smallest: 0.224, 0.3, 0.39, 0.041? (a) 0.224 (b) 0.3 (c) 0.39 (d) 0.041
  32. 32.Which is the smallest: 0.028, 0.43, 0.315, 0.4? (a) 0.028 (b) 0.43 (c) 0.315 (d) 0.4
  33. 33.What is the value of the digit 9 in 46.529? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  34. 34.Which is the greatest: 0.3, 0.31, 0.072, 0.283? (a) 0.3 (b) 0.31 (c) 0.072 (d) 0.283
  35. 35.What is the value of the digit 8 in 85.312? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  36. 36.What is the value of the digit 6 in 68.973? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  37. 37.Which is the smallest: 0.6, 0.65, 0.014, 0.541? (a) 0.6 (b) 0.65 (c) 0.014 (d) 0.541
  38. 38.1.43 + 7.7 = ? (a) 9.13 (b) 9.03 (c) 2.2 (d) 9.23
  39. 39.Which is the greatest: 0.571, 0.63, 0.081, 0.6? (a) 0.571 (b) 0.63 (c) 0.081 (d) 0.6
  40. 40.1.39 + 6.2 = ? (a) 2.01 (b) 7.69 (c) 7.49 (d) 7.59

Answer key

  1. 0.077
  2. 1
  3. 9
  4. 0.008
  5. 0.05
  6. 10
  7. 0.007
  8. 0.073
  9. 10.71
  10. 60
  11. 5.37
  12. 4.61
  13. 15.43
  14. 0.034
  15. 17.22
  16. 0.007
  17. 0.1
  18. 10.84
  19. 7.53
  20. 0.075
  21. 0.007
  22. 0.39
  23. 0.09
  24. 0.096
  25. 6.94
  26. 10.48
  27. 0.033
  28. 9.44
  29. 0.65
  30. 0.31
  31. 0.041
  32. 0.028
  33. 0.009
  34. 0.31
  35. 80
  36. 60
  37. 0.014
  38. 9.13
  39. 0.63
  40. 7.59

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