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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 616 · 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: 0.8, 0.045, 0.86, 0.796? (a) 0.8 (b) 0.045 (c) 0.86 (d) 0.796
  2. 2.2.78 + 7.9 = ? (a) 3.57 (b) 10.78 (c) 10.68 (d) 10.58
  3. 3.9.46 + 4.5 = ? (a) 13.86 (b) 14.06 (c) 9.91 (d) 13.96
  4. 4.Which is the greatest: 0.22, 0.131, 0.018, 0.2? (a) 0.22 (b) 0.131 (c) 0.018 (d) 0.2
  5. 5.What is the value of the digit 5 in 35.198? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  6. 6.What is the value of the digit 1 in 21.583? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  7. 7.7.55 + 5.5 = ? (a) 13.05 (b) 12.95 (c) 13.15 (d) 8.1
  8. 8.Which is the greatest: 0.26, 0.2, 0.099, 0.135? (a) 0.26 (b) 0.2 (c) 0.099 (d) 0.135
  9. 9.What is the value of the digit 5 in 53.674? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  10. 10.What is the value of the digit 3 in 48.396? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  11. 11.Which is the greatest: 0.24, 0.178, 0.2, 0.062? (a) 0.24 (b) 0.178 (c) 0.2 (d) 0.062
  12. 12.Which is the greatest: 0.4, 0.039, 0.47, 0.324? (a) 0.4 (b) 0.039 (c) 0.47 (d) 0.324
  13. 13.What is the value of the digit 4 in 48.367? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  14. 14.1.38 + 9.2 = ? (a) 2.3 (b) 10.68 (c) 10.48 (d) 10.58
  15. 15.4.91 + 4.9 = ? (a) 9.91 (b) 5.4 (c) 9.81 (d) 9.71
  16. 16.What is the value of the digit 3 in 91.348? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  17. 17.6.74 + 6.8 = ? (a) 7.42 (b) 13.64 (c) 13.54 (d) 13.44
  18. 18.8.28 + 1.2 = ? (a) 9.58 (b) 9.38 (c) 8.4 (d) 9.48
  19. 19.5.81 + 4.8 = ? (a) 10.51 (b) 6.29 (c) 10.71 (d) 10.61
  20. 20.What is the value of the digit 2 in 59.162? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  21. 21.Which is the greatest: 0.316, 0.4, 0.49, 0.029? (a) 0.316 (b) 0.4 (c) 0.49 (d) 0.029
  22. 22.Which is the greatest: 0.317, 0.45, 0.022, 0.4? (a) 0.317 (b) 0.45 (c) 0.022 (d) 0.4
  23. 23.2.76 + 8.3 = ? (a) 11.06 (b) 10.96 (c) 3.59 (d) 11.16
  24. 24.What is the value of the digit 4 in 36.841? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  25. 25.What is the value of the digit 4 in 91.742? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  26. 26.7.97 + 3.1 = ? (a) 8.28 (b) 11.07 (c) 11.17 (d) 10.97
  27. 27.What is the value of the digit 7 in 57.163? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  28. 28.What is the value of the digit 5 in 58.264? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  29. 29.What is the value of the digit 7 in 37.245? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  30. 30.3.31 + 8.2 = ? (a) 4.13 (b) 11.61 (c) 11.41 (d) 11.51
  31. 31.5.16 + 9.9 = ? (a) 14.96 (b) 15.16 (c) 15.06 (d) 6.15
  32. 32.1.23 + 1.4 = ? (a) 1.37 (b) 2.63 (c) 2.53 (d) 2.73
  33. 33.Which is the smallest: 0.42, 0.4, 0.095, 0.318? (a) 0.42 (b) 0.4 (c) 0.095 (d) 0.318
  34. 34.What is the value of the digit 2 in 35.482? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  35. 35.What is the value of the digit 6 in 67.132? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  36. 36.What is the value of the digit 2 in 23.814? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  37. 37.Which is the smallest: 0.27, 0.066, 0.2, 0.164? (a) 0.27 (b) 0.066 (c) 0.2 (d) 0.164
  38. 38.3.33 + 1.2 = ? (a) 4.63 (b) 3.45 (c) 4.53 (d) 4.43
  39. 39.What is the value of the digit 4 in 79.426? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  40. 40.Which is the smallest: 0.743, 0.89, 0.8, 0.065? (a) 0.743 (b) 0.89 (c) 0.8 (d) 0.065

Answer key

  1. 0.86
  2. 10.68
  3. 13.96
  4. 0.22
  5. 5
  6. 1
  7. 13.05
  8. 0.26
  9. 50
  10. 0.3
  11. 0.24
  12. 0.47
  13. 40
  14. 10.58
  15. 9.81
  16. 0.3
  17. 13.54
  18. 9.48
  19. 10.61
  20. 0.002
  21. 0.49
  22. 0.45
  23. 11.06
  24. 0.04
  25. 0.04
  26. 11.07
  27. 7
  28. 50
  29. 7
  30. 11.51
  31. 15.06
  32. 2.63
  33. 0.095
  34. 0.002
  35. 60
  36. 20
  37. 0.066
  38. 4.53
  39. 0.4
  40. 0.065

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