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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 889 · 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 17.359? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  2. 2.Which is the smallest: 0.439, 0.049, 0.59, 0.5? (a) 0.439 (b) 0.049 (c) 0.59 (d) 0.5
  3. 3.Which is the smallest: 0.7, 0.073, 0.79, 0.664? (a) 0.7 (b) 0.073 (c) 0.79 (d) 0.664
  4. 4.6.79 + 6.2 = ? (a) 13.09 (b) 12.99 (c) 7.41 (d) 12.89
  5. 5.Which is the smallest: 0.4, 0.42, 0.356, 0.054? (a) 0.4 (b) 0.42 (c) 0.356 (d) 0.054
  6. 6.What is the value of the digit 5 in 57.423? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  7. 7.4.52 + 9.1 = ? (a) 13.62 (b) 13.52 (c) 5.43 (d) 13.72
  8. 8.Which is the smallest: 0.48, 0.4, 0.329, 0.034? (a) 0.48 (b) 0.4 (c) 0.329 (d) 0.034
  9. 9.Which is the smallest: 0.37, 0.252, 0.041, 0.3? (a) 0.37 (b) 0.252 (c) 0.041 (d) 0.3
  10. 10.What is the value of the digit 5 in 36.527? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  11. 11.What is the value of the digit 4 in 27.694? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  12. 12.Which is the greatest: 0.5, 0.045, 0.53, 0.461? (a) 0.5 (b) 0.045 (c) 0.53 (d) 0.461
  13. 13.Which is the greatest: 0.5, 0.53, 0.429, 0.012? (a) 0.5 (b) 0.53 (c) 0.429 (d) 0.012
  14. 14.What is the value of the digit 8 in 54.168? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  15. 15.Which is the smallest: 0.28, 0.2, 0.081, 0.131? (a) 0.28 (b) 0.2 (c) 0.081 (d) 0.131
  16. 16.What is the value of the digit 2 in 62.431? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  17. 17.What is the value of the digit 2 in 85.324? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  18. 18.5.67 + 2.1 = ? (a) 5.88 (b) 7.67 (c) 7.77 (d) 7.87
  19. 19.5.01 + 9.2 = ? (a) 14.21 (b) 14.31 (c) 5.93 (d) 14.11
  20. 20.What is the value of the digit 3 in 24.317? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  21. 21.What is the value of the digit 7 in 83.972? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  22. 22.4.96 + 1.1 = ? (a) 6.06 (b) 5.07 (c) 5.96 (d) 6.16
  23. 23.Which is the smallest: 0.058, 0.598, 0.61, 0.6? (a) 0.058 (b) 0.598 (c) 0.61 (d) 0.6
  24. 24.7.28 + 8.2 = ? (a) 15.38 (b) 15.48 (c) 15.58 (d) 8.1
  25. 25.1.75 + 2.2 = ? (a) 3.85 (b) 1.97 (c) 3.95 (d) 4.05
  26. 26.Which is the greatest: 0.574, 0.069, 0.6, 0.64? (a) 0.574 (b) 0.069 (c) 0.6 (d) 0.64
  27. 27.Which is the greatest: 0.7, 0.012, 0.73, 0.644? (a) 0.7 (b) 0.012 (c) 0.73 (d) 0.644
  28. 28.2.96 + 6.8 = ? (a) 9.86 (b) 9.76 (c) 9.66 (d) 3.64
  29. 29.3.09 + 2.5 = ? (a) 5.59 (b) 5.69 (c) 5.49 (d) 3.34
  30. 30.Which is the smallest: 0.3, 0.38, 0.281, 0.068? (a) 0.3 (b) 0.38 (c) 0.281 (d) 0.068
  31. 31.Which is the smallest: 0.2, 0.117, 0.21, 0.051? (a) 0.2 (b) 0.117 (c) 0.21 (d) 0.051
  32. 32.2.83 + 7.1 = ? (a) 9.93 (b) 9.83 (c) 3.54 (d) 10.03
  33. 33.7.19 + 8.3 = ? (a) 15.59 (b) 8.02 (c) 15.49 (d) 15.39
  34. 34.7.37 + 5.8 = ? (a) 7.95 (b) 13.27 (c) 13.07 (d) 13.17
  35. 35.What is the value of the digit 6 in 85.643? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  36. 36.3.71 + 5.2 = ? (a) 9.01 (b) 8.81 (c) 4.23 (d) 8.91
  37. 37.What is the value of the digit 8 in 29.481? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  38. 38.Which is the smallest: 0.726, 0.8, 0.86, 0.017? (a) 0.726 (b) 0.8 (c) 0.86 (d) 0.017
  39. 39.What is the value of the digit 2 in 53.421? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  40. 40.What is the value of the digit 3 in 34.217? (a) 0.03 (b) 3 (c) 0.3 (d) 30

Answer key

  1. 0.3
  2. 0.049
  3. 0.073
  4. 12.99
  5. 0.054
  6. 50
  7. 13.62
  8. 0.034
  9. 0.041
  10. 0.5
  11. 0.004
  12. 0.53
  13. 0.53
  14. 0.008
  15. 0.081
  16. 2
  17. 0.02
  18. 7.77
  19. 14.21
  20. 0.3
  21. 0.07
  22. 6.06
  23. 0.058
  24. 15.48
  25. 3.95
  26. 0.64
  27. 0.73
  28. 9.76
  29. 5.59
  30. 0.068
  31. 0.051
  32. 9.93
  33. 15.49
  34. 13.17
  35. 0.6
  36. 8.91
  37. 0.08
  38. 0.017
  39. 0.02
  40. 30

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