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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 771 · 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: 0.441, 0.064, 0.58, 0.5? (a) 0.441 (b) 0.064 (c) 0.58 (d) 0.5
  2. 2.3.92 + 2.7 = ? (a) 6.52 (b) 6.72 (c) 4.19 (d) 6.62
  3. 3.7.61 + 2.8 = ? (a) 7.89 (b) 10.51 (c) 10.31 (d) 10.41
  4. 4.Which is the smallest: 0.8, 0.84, 0.738, 0.012? (a) 0.8 (b) 0.84 (c) 0.738 (d) 0.012
  5. 5.Which is the greatest: 0.5, 0.51, 0.487, 0.076? (a) 0.5 (b) 0.51 (c) 0.487 (d) 0.076
  6. 6.2.99 + 3.6 = ? (a) 6.69 (b) 3.35 (c) 6.49 (d) 6.59
  7. 7.What is the value of the digit 1 in 12.354? (a) 1 (b) 10 (c) 0.1 (d) 0.01
  8. 8.2.34 + 6.9 = ? (a) 9.34 (b) 3.03 (c) 9.24 (d) 9.14
  9. 9.What is the value of the digit 5 in 31.425? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  10. 10.4.84 + 9.7 = ? (a) 14.44 (b) 14.64 (c) 5.81 (d) 14.54
  11. 11.Which is the smallest: 0.061, 0.71, 0.7, 0.635? (a) 0.061 (b) 0.71 (c) 0.7 (d) 0.635
  12. 12.Which is the smallest: 0.57, 0.019, 0.443, 0.5? (a) 0.57 (b) 0.019 (c) 0.443 (d) 0.5
  13. 13.What is the value of the digit 6 in 32.176? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  14. 14.What is the value of the digit 6 in 57.863? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  15. 15.What is the value of the digit 4 in 45.671? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  16. 16.Which is the greatest: 0.311, 0.46, 0.4, 0.062? (a) 0.311 (b) 0.46 (c) 0.4 (d) 0.062
  17. 17.What is the value of the digit 3 in 39.654? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  18. 18.6.92 + 1.6 = ? (a) 8.42 (b) 8.52 (c) 8.62 (d) 7.08
  19. 19.Which is the smallest: 0.8, 0.098, 0.83, 0.764? (a) 0.8 (b) 0.098 (c) 0.83 (d) 0.764
  20. 20.Which is the greatest: 0.395, 0.4, 0.42, 0.042? (a) 0.395 (b) 0.4 (c) 0.42 (d) 0.042
  21. 21.Which is the smallest: 0.85, 0.8, 0.023, 0.761? (a) 0.85 (b) 0.8 (c) 0.023 (d) 0.761
  22. 22.Which is the greatest: 0.412, 0.54, 0.066, 0.5? (a) 0.412 (b) 0.54 (c) 0.066 (d) 0.5
  23. 23.What is the value of the digit 1 in 14.568? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  24. 24.Which is the greatest: 0.7, 0.637, 0.015, 0.78? (a) 0.7 (b) 0.637 (c) 0.015 (d) 0.78
  25. 25.Which is the smallest: 0.79, 0.7, 0.043, 0.644? (a) 0.79 (b) 0.7 (c) 0.043 (d) 0.644
  26. 26.5.18 + 1.8 = ? (a) 7.08 (b) 5.36 (c) 6.88 (d) 6.98
  27. 27.What is the value of the digit 5 in 54.167? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  28. 28.What is the value of the digit 2 in 41.273? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  29. 29.Which is the smallest: 0.22, 0.2, 0.038, 0.151? (a) 0.22 (b) 0.2 (c) 0.038 (d) 0.151
  30. 30.What is the value of the digit 5 in 58.392? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  31. 31.Which is the smallest: 0.58, 0.5, 0.454, 0.063? (a) 0.58 (b) 0.5 (c) 0.454 (d) 0.063
  32. 32.What is the value of the digit 1 in 91.345? (a) 0.1 (b) 1 (c) 10 (d) 0.01
  33. 33.5.19 + 8.1 = ? (a) 13.39 (b) 13.19 (c) 13.29 (d) 6
  34. 34.What is the value of the digit 6 in 69.127? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  35. 35.Which is the smallest: 0.692, 0.072, 0.72, 0.7? (a) 0.692 (b) 0.072 (c) 0.72 (d) 0.7
  36. 36.What is the value of the digit 6 in 57.916? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  37. 37.What is the value of the digit 6 in 54.612? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  38. 38.9.88 + 4.6 = ? (a) 10.34 (b) 14.58 (c) 14.38 (d) 14.48
  39. 39.Which is the greatest: 0.021, 0.71, 0.7, 0.611? (a) 0.021 (b) 0.71 (c) 0.7 (d) 0.611
  40. 40.Which is the smallest: 0.8, 0.764, 0.074, 0.85? (a) 0.8 (b) 0.764 (c) 0.074 (d) 0.85

Answer key

  1. 0.064
  2. 6.62
  3. 10.41
  4. 0.012
  5. 0.51
  6. 6.59
  7. 10
  8. 9.24
  9. 0.005
  10. 14.54
  11. 0.061
  12. 0.019
  13. 0.006
  14. 0.06
  15. 40
  16. 0.46
  17. 30
  18. 8.52
  19. 0.098
  20. 0.42
  21. 0.023
  22. 0.54
  23. 10
  24. 0.78
  25. 0.043
  26. 6.98
  27. 50
  28. 0.2
  29. 0.038
  30. 50
  31. 0.063
  32. 1
  33. 13.29
  34. 60
  35. 0.072
  36. 0.006
  37. 0.6
  38. 14.48
  39. 0.71
  40. 0.074

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