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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 662 · 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 26.345? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  2. 2.What is the value of the digit 8 in 48.695? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  3. 3.What is the value of the digit 1 in 29.816? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  4. 4.5.91 + 6.8 = ? (a) 12.61 (b) 12.81 (c) 12.71 (d) 6.59
  5. 5.3.96 + 6.6 = ? (a) 4.62 (b) 10.56 (c) 10.46 (d) 10.66
  6. 6.Which is the smallest: 0.5, 0.58, 0.435, 0.055? (a) 0.5 (b) 0.58 (c) 0.435 (d) 0.055
  7. 7.5.45 + 5.8 = ? (a) 6.03 (b) 11.15 (c) 11.35 (d) 11.25
  8. 8.Which is the smallest: 0.725, 0.011, 0.88, 0.8? (a) 0.725 (b) 0.011 (c) 0.88 (d) 0.8
  9. 9.What is the value of the digit 6 in 96.781? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  10. 10.Which is the greatest: 0.7, 0.695, 0.048, 0.76? (a) 0.7 (b) 0.695 (c) 0.048 (d) 0.76
  11. 11.Which is the greatest: 0.2, 0.056, 0.143, 0.24? (a) 0.2 (b) 0.056 (c) 0.143 (d) 0.24
  12. 12.What is the value of the digit 3 in 23.879? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  13. 13.Which is the greatest: 0.77, 0.015, 0.664, 0.7? (a) 0.77 (b) 0.015 (c) 0.664 (d) 0.7
  14. 14.8.98 + 2.6 = ? (a) 11.68 (b) 11.58 (c) 11.48 (d) 9.24
  15. 15.Which is the smallest: 0.23, 0.193, 0.2, 0.052? (a) 0.23 (b) 0.193 (c) 0.2 (d) 0.052
  16. 16.Which is the smallest: 0.69, 0.068, 0.6, 0.574? (a) 0.69 (b) 0.068 (c) 0.6 (d) 0.574
  17. 17.What is the value of the digit 2 in 39.215? (a) 0.2 (b) 2 (c) 0.002 (d) 0.02
  18. 18.3.37 + 6.9 = ? (a) 4.06 (b) 10.17 (c) 10.37 (d) 10.27
  19. 19.What is the value of the digit 3 in 63.294? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  20. 20.6.85 + 5.1 = ? (a) 11.85 (b) 7.36 (c) 12.05 (d) 11.95
  21. 21.Which is the greatest: 0.42, 0.398, 0.013, 0.4? (a) 0.42 (b) 0.398 (c) 0.013 (d) 0.4
  22. 22.What is the value of the digit 7 in 67.213? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  23. 23.What is the value of the digit 5 in 16.385? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  24. 24.8.39 + 1.6 = ? (a) 10.09 (b) 9.99 (c) 8.55 (d) 9.89
  25. 25.What is the value of the digit 1 in 75.146? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  26. 26.What is the value of the digit 5 in 53.287? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  27. 27.3.34 + 8.4 = ? (a) 11.64 (b) 4.18 (c) 11.74 (d) 11.84
  28. 28.Which is the greatest: 0.021, 0.762, 0.86, 0.8? (a) 0.021 (b) 0.762 (c) 0.86 (d) 0.8
  29. 29.What is the value of the digit 5 in 73.451? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  30. 30.Which is the greatest: 0.323, 0.48, 0.058, 0.4? (a) 0.323 (b) 0.48 (c) 0.058 (d) 0.4
  31. 31.Which is the smallest: 0.8, 0.84, 0.782, 0.034? (a) 0.8 (b) 0.84 (c) 0.782 (d) 0.034
  32. 32.Which is the greatest: 0.014, 0.58, 0.5, 0.446? (a) 0.014 (b) 0.58 (c) 0.5 (d) 0.446
  33. 33.4.86 + 2.7 = ? (a) 7.66 (b) 7.46 (c) 7.56 (d) 5.13
  34. 34.Which is the smallest: 0.31, 0.3, 0.281, 0.037? (a) 0.31 (b) 0.3 (c) 0.281 (d) 0.037
  35. 35.Which is the smallest: 0.53, 0.422, 0.031, 0.5? (a) 0.53 (b) 0.422 (c) 0.031 (d) 0.5
  36. 36.3.68 + 3.1 = ? (a) 3.99 (b) 6.68 (c) 6.78 (d) 6.88
  37. 37.2.91 + 8.3 = ? (a) 3.74 (b) 11.31 (c) 11.21 (d) 11.11
  38. 38.6.51 + 5.2 = ? (a) 11.81 (b) 11.61 (c) 11.71 (d) 7.03
  39. 39.Which is the smallest: 0.3, 0.251, 0.32, 0.099? (a) 0.3 (b) 0.251 (c) 0.32 (d) 0.099
  40. 40.3.53 + 2.5 = ? (a) 5.93 (b) 3.78 (c) 6.13 (d) 6.03

Answer key

  1. 0.3
  2. 8
  3. 0.01
  4. 12.71
  5. 10.56
  6. 0.055
  7. 11.25
  8. 0.011
  9. 6
  10. 0.76
  11. 0.24
  12. 3
  13. 0.77
  14. 11.58
  15. 0.052
  16. 0.068
  17. 0.2
  18. 10.27
  19. 3
  20. 11.95
  21. 0.42
  22. 7
  23. 0.005
  24. 9.99
  25. 0.1
  26. 50
  27. 11.74
  28. 0.86
  29. 0.05
  30. 0.48
  31. 0.034
  32. 0.58
  33. 7.56
  34. 0.037
  35. 0.031
  36. 6.78
  37. 11.21
  38. 11.71
  39. 0.099
  40. 6.03

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