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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 429 · 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: 0.056, 0.67, 0.6, 0.514? (a) 0.056 (b) 0.67 (c) 0.6 (d) 0.514
  2. 2.1.48 + 6.9 = ? (a) 2.17 (b) 8.38 (c) 8.48 (d) 8.28
  3. 3.What is the value of the digit 5 in 61.845? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  4. 4.6.01 + 5.2 = ? (a) 11.31 (b) 11.21 (c) 6.53 (d) 11.11
  5. 5.Which is the smallest: 0.273, 0.082, 0.3, 0.33? (a) 0.273 (b) 0.082 (c) 0.3 (d) 0.33
  6. 6.Which is the greatest: 0.64, 0.019, 0.511, 0.6? (a) 0.64 (b) 0.019 (c) 0.511 (d) 0.6
  7. 7.Which is the smallest: 0.183, 0.064, 0.28, 0.2? (a) 0.183 (b) 0.064 (c) 0.28 (d) 0.2
  8. 8.What is the value of the digit 4 in 14.392? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  9. 9.2.01 + 5.8 = ? (a) 2.59 (b) 7.81 (c) 7.71 (d) 7.91
  10. 10.Which is the smallest: 0.86, 0.043, 0.8, 0.773? (a) 0.86 (b) 0.043 (c) 0.8 (d) 0.773
  11. 11.Which is the smallest: 0.468, 0.58, 0.038, 0.5? (a) 0.468 (b) 0.58 (c) 0.038 (d) 0.5
  12. 12.What is the value of the digit 5 in 89.725? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  13. 13.Which is the greatest: 0.3, 0.31, 0.039, 0.289? (a) 0.3 (b) 0.31 (c) 0.039 (d) 0.289
  14. 14.What is the value of the digit 9 in 51.496? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  15. 15.Which is the greatest: 0.418, 0.53, 0.5, 0.038? (a) 0.418 (b) 0.53 (c) 0.5 (d) 0.038
  16. 16.What is the value of the digit 2 in 57.623? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  17. 17.2.71 + 1.3 = ? (a) 4.01 (b) 2.84 (c) 4.11 (d) 3.91
  18. 18.What is the value of the digit 8 in 64.587? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08
  19. 19.3.48 + 8.9 = ? (a) 12.48 (b) 4.37 (c) 12.28 (d) 12.38
  20. 20.What is the value of the digit 6 in 42.639? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  21. 21.What is the value of the digit 1 in 92.154? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  22. 22.What is the value of the digit 5 in 56.218? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  23. 23.What is the value of the digit 7 in 32.759? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  24. 24.1.45 + 9.1 = ? (a) 2.36 (b) 10.55 (c) 10.45 (d) 10.65
  25. 25.7.61 + 9.5 = ? (a) 17.11 (b) 17.21 (c) 8.56 (d) 17.01
  26. 26.What is the value of the digit 5 in 21.759? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  27. 27.4.76 + 2.1 = ? (a) 4.97 (b) 6.86 (c) 6.76 (d) 6.96
  28. 28.Which is the smallest: 0.053, 0.4, 0.365, 0.44? (a) 0.053 (b) 0.4 (c) 0.365 (d) 0.44
  29. 29.Which is the greatest: 0.72, 0.677, 0.091, 0.7? (a) 0.72 (b) 0.677 (c) 0.091 (d) 0.7
  30. 30.Which is the greatest: 0.36, 0.292, 0.079, 0.3? (a) 0.36 (b) 0.292 (c) 0.079 (d) 0.3
  31. 31.Which is the greatest: 0.511, 0.6, 0.093, 0.62? (a) 0.511 (b) 0.6 (c) 0.093 (d) 0.62
  32. 32.1.23 + 5.1 = ? (a) 1.74 (b) 6.43 (c) 6.23 (d) 6.33
  33. 33.1.27 + 5.2 = ? (a) 6.47 (b) 6.37 (c) 1.79 (d) 6.57
  34. 34.Which is the smallest: 0.7, 0.74, 0.611, 0.091? (a) 0.7 (b) 0.74 (c) 0.611 (d) 0.091
  35. 35.Which is the smallest: 0.54, 0.441, 0.5, 0.036? (a) 0.54 (b) 0.441 (c) 0.5 (d) 0.036
  36. 36.8.53 + 3.2 = ? (a) 11.73 (b) 11.63 (c) 11.83 (d) 8.85
  37. 37.8.47 + 8.3 = ? (a) 9.3 (b) 16.77 (c) 16.87 (d) 16.67
  38. 38.Which is the smallest: 0.096, 0.25, 0.111, 0.2? (a) 0.096 (b) 0.25 (c) 0.111 (d) 0.2
  39. 39.Which is the greatest: 0.5, 0.058, 0.455, 0.55? (a) 0.5 (b) 0.058 (c) 0.455 (d) 0.55
  40. 40.Which is the smallest: 0.26, 0.188, 0.077, 0.2? (a) 0.26 (b) 0.188 (c) 0.077 (d) 0.2

Answer key

  1. 0.056
  2. 8.38
  3. 0.005
  4. 11.21
  5. 0.082
  6. 0.64
  7. 0.064
  8. 4
  9. 7.81
  10. 0.043
  11. 0.038
  12. 0.005
  13. 0.31
  14. 0.09
  15. 0.53
  16. 0.02
  17. 4.01
  18. 0.08
  19. 12.38
  20. 0.6
  21. 0.1
  22. 50
  23. 0.7
  24. 10.55
  25. 17.11
  26. 0.05
  27. 6.86
  28. 0.053
  29. 0.72
  30. 0.36
  31. 0.62
  32. 6.33
  33. 6.47
  34. 0.091
  35. 0.036
  36. 11.73
  37. 16.77
  38. 0.096
  39. 0.55
  40. 0.077

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