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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 308 · 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 2 in 72.134? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  2. 2.7.06 + 2.4 = ? (a) 7.3 (b) 9.56 (c) 9.36 (d) 9.46
  3. 3.What is the value of the digit 1 in 13.275? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  4. 4.2.44 + 2.6 = ? (a) 4.94 (b) 5.04 (c) 5.14 (d) 2.7
  5. 5.What is the value of the digit 5 in 47.635? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  6. 6.What is the value of the digit 1 in 97.261? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  7. 7.What is the value of the digit 4 in 29.468? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  8. 8.3.61 + 5.2 = ? (a) 8.91 (b) 8.71 (c) 4.13 (d) 8.81
  9. 9.What is the value of the digit 7 in 57.694? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  10. 10.Which is the smallest: 0.498, 0.5, 0.52, 0.065? (a) 0.498 (b) 0.5 (c) 0.52 (d) 0.065
  11. 11.4.34 + 1.2 = ? (a) 4.46 (b) 5.64 (c) 5.54 (d) 5.44
  12. 12.What is the value of the digit 1 in 34.615? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  13. 13.4.65 + 8.9 = ? (a) 5.54 (b) 13.65 (c) 13.45 (d) 13.55
  14. 14.Which is the smallest: 0.7, 0.675, 0.79, 0.031? (a) 0.7 (b) 0.675 (c) 0.79 (d) 0.031
  15. 15.Which is the greatest: 0.88, 0.779, 0.8, 0.033? (a) 0.88 (b) 0.779 (c) 0.8 (d) 0.033
  16. 16.Which is the smallest: 0.4, 0.46, 0.021, 0.324? (a) 0.4 (b) 0.46 (c) 0.021 (d) 0.324
  17. 17.Which is the greatest: 0.28, 0.021, 0.2, 0.143? (a) 0.28 (b) 0.021 (c) 0.2 (d) 0.143
  18. 18.4.17 + 2.3 = ? (a) 4.4 (b) 6.37 (c) 6.57 (d) 6.47
  19. 19.2.33 + 7.6 = ? (a) 10.03 (b) 9.93 (c) 9.83 (d) 3.09
  20. 20.5.82 + 8.2 = ? (a) 13.92 (b) 6.64 (c) 14.12 (d) 14.02
  21. 21.5.98 + 3.9 = ? (a) 9.78 (b) 9.98 (c) 9.88 (d) 6.37
  22. 22.Which is the greatest: 0.416, 0.55, 0.5, 0.061? (a) 0.416 (b) 0.55 (c) 0.5 (d) 0.061
  23. 23.What is the value of the digit 7 in 32.786? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  24. 24.Which is the smallest: 0.079, 0.2, 0.27, 0.141? (a) 0.079 (b) 0.2 (c) 0.27 (d) 0.141
  25. 25.What is the value of the digit 6 in 76.214? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  26. 26.3.33 + 2.1 = ? (a) 3.54 (b) 5.33 (c) 5.43 (d) 5.53
  27. 27.8.91 + 1.6 = ? (a) 10.61 (b) 10.41 (c) 10.51 (d) 9.07
  28. 28.2.72 + 3.8 = ? (a) 6.62 (b) 6.52 (c) 6.42 (d) 3.1
  29. 29.2.35 + 1.6 = ? (a) 4.05 (b) 2.51 (c) 3.85 (d) 3.95
  30. 30.What is the value of the digit 4 in 74.695? (a) 4 (b) 40 (c) 0.04 (d) 0.4
  31. 31.What is the value of the digit 1 in 81.732? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  32. 32.8.24 + 1.3 = ? (a) 9.54 (b) 9.64 (c) 8.37 (d) 9.44
  33. 33.Which is the smallest: 0.075, 0.255, 0.33, 0.3? (a) 0.075 (b) 0.255 (c) 0.33 (d) 0.3
  34. 34.Which is the greatest: 0.345, 0.024, 0.4, 0.45? (a) 0.345 (b) 0.024 (c) 0.4 (d) 0.45
  35. 35.6.75 + 8.1 = ? (a) 14.95 (b) 7.56 (c) 14.75 (d) 14.85
  36. 36.3.36 + 1.5 = ? (a) 4.96 (b) 3.51 (c) 4.76 (d) 4.86
  37. 37.What is the value of the digit 2 in 29.415? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  38. 38.3.37 + 5.1 = ? (a) 3.88 (b) 8.57 (c) 8.37 (d) 8.47
  39. 39.Which is the smallest: 0.053, 0.6, 0.69, 0.522? (a) 0.053 (b) 0.6 (c) 0.69 (d) 0.522
  40. 40.Which is the smallest: 0.066, 0.2, 0.29, 0.176? (a) 0.066 (b) 0.2 (c) 0.29 (d) 0.176

Answer key

  1. 2
  2. 9.46
  3. 10
  4. 5.04
  5. 0.005
  6. 0.001
  7. 0.4
  8. 8.81
  9. 7
  10. 0.065
  11. 5.54
  12. 0.01
  13. 13.55
  14. 0.031
  15. 0.88
  16. 0.021
  17. 0.28
  18. 6.47
  19. 9.93
  20. 14.02
  21. 9.88
  22. 0.55
  23. 0.7
  24. 0.079
  25. 6
  26. 5.43
  27. 10.51
  28. 6.52
  29. 3.95
  30. 4
  31. 1
  32. 9.54
  33. 0.075
  34. 0.45
  35. 14.85
  36. 4.86
  37. 20
  38. 8.47
  39. 0.053
  40. 0.066

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