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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 144 · 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 greatest: 0.3, 0.058, 0.293, 0.34? (a) 0.3 (b) 0.058 (c) 0.293 (d) 0.34
  2. 2.What is the value of the digit 1 in 12.859? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  3. 3.6.01 + 4.9 = ? (a) 6.5 (b) 11.01 (c) 10.91 (d) 10.81
  4. 4.Which is the smallest: 0.311, 0.45, 0.4, 0.097? (a) 0.311 (b) 0.45 (c) 0.4 (d) 0.097
  5. 5.Which is the smallest: 0.038, 0.53, 0.451, 0.5? (a) 0.038 (b) 0.53 (c) 0.451 (d) 0.5
  6. 6.What is the value of the digit 8 in 42.871? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  7. 7.7.86 + 3.4 = ? (a) 11.16 (b) 11.36 (c) 8.2 (d) 11.26
  8. 8.1.61 + 2.7 = ? (a) 4.41 (b) 4.21 (c) 4.31 (d) 1.88
  9. 9.7.74 + 1.3 = ? (a) 7.87 (b) 8.94 (c) 9.14 (d) 9.04
  10. 10.Which is the greatest: 0.34, 0.3, 0.035, 0.222? (a) 0.34 (b) 0.3 (c) 0.035 (d) 0.222
  11. 11.4.88 + 7.3 = ? (a) 12.18 (b) 12.08 (c) 12.28 (d) 5.61
  12. 12.What is the value of the digit 6 in 36.142? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  13. 13.What is the value of the digit 1 in 71.429? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  14. 14.1.89 + 6.3 = ? (a) 8.09 (b) 2.52 (c) 8.29 (d) 8.19
  15. 15.2.48 + 5.8 = ? (a) 8.28 (b) 3.06 (c) 8.38 (d) 8.18
  16. 16.2.25 + 6.9 = ? (a) 2.94 (b) 9.15 (c) 9.05 (d) 9.25
  17. 17.Which is the greatest: 0.021, 0.737, 0.8, 0.87? (a) 0.021 (b) 0.737 (c) 0.8 (d) 0.87
  18. 18.What is the value of the digit 4 in 74.286? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  19. 19.Which is the smallest: 0.439, 0.079, 0.5, 0.55? (a) 0.439 (b) 0.079 (c) 0.5 (d) 0.55
  20. 20.What is the value of the digit 2 in 42.593? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  21. 21.What is the value of the digit 6 in 46.251? (a) 0.6 (b) 0.06 (c) 60 (d) 6
  22. 22.What is the value of the digit 7 in 16.795? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  23. 23.What is the value of the digit 6 in 31.567? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  24. 24.What is the value of the digit 5 in 62.815? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  25. 25.5.52 + 7.7 = ? (a) 6.29 (b) 13.12 (c) 13.22 (d) 13.32
  26. 26.What is the value of the digit 2 in 25.789? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  27. 27.What is the value of the digit 6 in 93.716? (a) 0.06 (b) 6 (c) 0.6 (d) 0.006
  28. 28.2.58 + 2.5 = ? (a) 2.83 (b) 5.08 (c) 4.98 (d) 5.18
  29. 29.What is the value of the digit 3 in 78.934? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  30. 30.What is the value of the digit 8 in 89.345? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  31. 31.What is the value of the digit 9 in 15.293? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  32. 32.Which is the greatest: 0.036, 0.6, 0.68, 0.587? (a) 0.036 (b) 0.6 (c) 0.68 (d) 0.587
  33. 33.What is the value of the digit 8 in 38.962? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  34. 34.1.79 + 4.8 = ? (a) 6.49 (b) 2.27 (c) 6.59 (d) 6.69
  35. 35.Which is the greatest: 0.36, 0.055, 0.3, 0.272? (a) 0.36 (b) 0.055 (c) 0.3 (d) 0.272
  36. 36.What is the value of the digit 2 in 85.264? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  37. 37.8.17 + 3.3 = ? (a) 11.57 (b) 8.5 (c) 11.37 (d) 11.47
  38. 38.What is the value of the digit 9 in 31.869? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  39. 39.Which is the greatest: 0.37, 0.226, 0.3, 0.071? (a) 0.37 (b) 0.226 (c) 0.3 (d) 0.071
  40. 40.What is the value of the digit 3 in 34.218? (a) 0.3 (b) 3 (c) 30 (d) 0.03

Answer key

  1. 0.34
  2. 10
  3. 10.91
  4. 0.097
  5. 0.038
  6. 0.8
  7. 11.26
  8. 4.31
  9. 9.04
  10. 0.34
  11. 12.18
  12. 6
  13. 1
  14. 8.19
  15. 8.28
  16. 9.15
  17. 0.87
  18. 4
  19. 0.079
  20. 2
  21. 6
  22. 0.7
  23. 0.06
  24. 0.005
  25. 13.22
  26. 20
  27. 0.006
  28. 5.08
  29. 0.03
  30. 80
  31. 0.09
  32. 0.68
  33. 8
  34. 6.59
  35. 0.36
  36. 0.2
  37. 11.47
  38. 0.009
  39. 0.37
  40. 30

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