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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 941 · 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. 1.9.27 + 7.7 = ? (a) 16.87 (b) 17.07 (c) 10.04 (d) 16.97
  2. 2.What is the value of the digit 6 in 64.513? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  3. 3.What is the value of the digit 7 in 95.713? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  4. 4.Which is the greatest: 0.645, 0.71, 0.072, 0.7? (a) 0.645 (b) 0.71 (c) 0.072 (d) 0.7
  5. 5.What is the value of the digit 3 in 17.983? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  6. 6.6.87 + 9.8 = ? (a) 16.77 (b) 16.57 (c) 7.85 (d) 16.67
  7. 7.Which is the smallest: 0.57, 0.434, 0.052, 0.5? (a) 0.57 (b) 0.434 (c) 0.052 (d) 0.5
  8. 8.Which is the smallest: 0.053, 0.2, 0.141, 0.24? (a) 0.053 (b) 0.2 (c) 0.141 (d) 0.24
  9. 9.Which is the greatest: 0.334, 0.028, 0.49, 0.4? (a) 0.334 (b) 0.028 (c) 0.49 (d) 0.4
  10. 10.4.48 + 9.7 = ? (a) 14.18 (b) 14.28 (c) 5.45 (d) 14.08
  11. 11.Which is the smallest: 0.5, 0.414, 0.54, 0.062? (a) 0.5 (b) 0.414 (c) 0.54 (d) 0.062
  12. 12.5.82 + 3.7 = ? (a) 6.19 (b) 9.52 (c) 9.42 (d) 9.62
  13. 13.What is the value of the digit 3 in 13.827? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  14. 14.What is the value of the digit 5 in 73.251? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  15. 15.Which is the smallest: 0.48, 0.022, 0.385, 0.4? (a) 0.48 (b) 0.022 (c) 0.385 (d) 0.4
  16. 16.What is the value of the digit 7 in 41.768? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  17. 17.Which is the smallest: 0.6, 0.66, 0.521, 0.019? (a) 0.6 (b) 0.66 (c) 0.521 (d) 0.019
  18. 18.4.45 + 3.4 = ? (a) 4.79 (b) 7.95 (c) 7.85 (d) 7.75
  19. 19.What is the value of the digit 8 in 54.819? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  20. 20.8.32 + 3.5 = ? (a) 11.92 (b) 11.72 (c) 8.67 (d) 11.82
  21. 21.Which is the greatest: 0.045, 0.364, 0.4, 0.41? (a) 0.045 (b) 0.364 (c) 0.4 (d) 0.41
  22. 22.What is the value of the digit 4 in 39.274? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  23. 23.8.04 + 4.5 = ? (a) 12.64 (b) 8.49 (c) 12.44 (d) 12.54
  24. 24.6.11 + 9.8 = ? (a) 15.81 (b) 16.01 (c) 15.91 (d) 7.09
  25. 25.What is the value of the digit 2 in 52.389? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  26. 26.Which is the greatest: 0.044, 0.487, 0.52, 0.5? (a) 0.044 (b) 0.487 (c) 0.52 (d) 0.5
  27. 27.Which is the smallest: 0.052, 0.636, 0.79, 0.7? (a) 0.052 (b) 0.636 (c) 0.79 (d) 0.7
  28. 28.What is the value of the digit 5 in 31.568? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  29. 29.Which is the greatest: 0.587, 0.011, 0.6, 0.66? (a) 0.587 (b) 0.011 (c) 0.6 (d) 0.66
  30. 30.5.19 + 6.2 = ? (a) 11.29 (b) 11.49 (c) 11.39 (d) 5.81
  31. 31.Which is the greatest: 0.34, 0.3, 0.085, 0.236? (a) 0.34 (b) 0.3 (c) 0.085 (d) 0.236
  32. 32.What is the value of the digit 8 in 51.834? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  33. 33.1.68 + 6.1 = ? (a) 7.68 (b) 7.78 (c) 7.88 (d) 2.29
  34. 34.What is the value of the digit 2 in 26.481? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  35. 35.Which is the smallest: 0.498, 0.5, 0.027, 0.54? (a) 0.498 (b) 0.5 (c) 0.027 (d) 0.54
  36. 36.Which is the smallest: 0.069, 0.52, 0.453, 0.5? (a) 0.069 (b) 0.52 (c) 0.453 (d) 0.5
  37. 37.Which is the greatest: 0.6, 0.66, 0.023, 0.588? (a) 0.6 (b) 0.66 (c) 0.023 (d) 0.588
  38. 38.8.48 + 1.5 = ? (a) 8.63 (b) 9.98 (c) 10.08 (d) 9.88
  39. 39.Which is the greatest: 0.5, 0.034, 0.57, 0.416? (a) 0.5 (b) 0.034 (c) 0.57 (d) 0.416
  40. 40.What is the value of the digit 1 in 84.921? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001

Answer key

  1. 16.97
  2. 60
  3. 0.7
  4. 0.71
  5. 0.003
  6. 16.67
  7. 0.052
  8. 0.053
  9. 0.49
  10. 14.18
  11. 0.062
  12. 9.52
  13. 3
  14. 0.05
  15. 0.022
  16. 0.7
  17. 0.019
  18. 7.85
  19. 0.8
  20. 11.82
  21. 0.41
  22. 0.004
  23. 12.54
  24. 15.91
  25. 2
  26. 0.52
  27. 0.052
  28. 0.5
  29. 0.66
  30. 11.39
  31. 0.34
  32. 0.8
  33. 7.78
  34. 20
  35. 0.027
  36. 0.069
  37. 0.66
  38. 9.98
  39. 0.57
  40. 0.001

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