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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 651 · 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. 1.3.56 + 9.5 = ? (a) 13.16 (b) 4.51 (c) 13.06 (d) 12.96
  2. 2.Which is the smallest: 0.052, 0.635, 0.7, 0.72? (a) 0.052 (b) 0.635 (c) 0.7 (d) 0.72
  3. 3.8.65 + 1.5 = ? (a) 10.05 (b) 10.15 (c) 10.25 (d) 8.8
  4. 4.Which is the smallest: 0.5, 0.414, 0.55, 0.034? (a) 0.5 (b) 0.414 (c) 0.55 (d) 0.034
  5. 5.What is the value of the digit 1 in 61.283? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  6. 6.9.66 + 5.7 = ? (a) 15.26 (b) 10.23 (c) 15.46 (d) 15.36
  7. 7.Which is the greatest: 0.085, 0.594, 0.63, 0.6? (a) 0.085 (b) 0.594 (c) 0.63 (d) 0.6
  8. 8.5.39 + 2.6 = ? (a) 8.09 (b) 5.65 (c) 7.99 (d) 7.89
  9. 9.Which is the smallest: 0.012, 0.489, 0.5, 0.52? (a) 0.012 (b) 0.489 (c) 0.5 (d) 0.52
  10. 10.6.04 + 8.4 = ? (a) 14.44 (b) 14.54 (c) 6.88 (d) 14.34
  11. 11.4.81 + 8.7 = ? (a) 13.41 (b) 5.68 (c) 13.51 (d) 13.61
  12. 12.7.52 + 7.1 = ? (a) 14.72 (b) 14.62 (c) 8.23 (d) 14.52
  13. 13.What is the value of the digit 9 in 89.174? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  14. 14.Which is the smallest: 0.51, 0.5, 0.093, 0.443? (a) 0.51 (b) 0.5 (c) 0.093 (d) 0.443
  15. 15.3.43 + 8.7 = ? (a) 4.3 (b) 12.13 (c) 12.23 (d) 12.03
  16. 16.Which is the smallest: 0.5, 0.419, 0.062, 0.52? (a) 0.5 (b) 0.419 (c) 0.062 (d) 0.52
  17. 17.Which is the greatest: 0.691, 0.082, 0.77, 0.7? (a) 0.691 (b) 0.082 (c) 0.77 (d) 0.7
  18. 18.1.33 + 3.4 = ? (a) 1.67 (b) 4.83 (c) 4.63 (d) 4.73
  19. 19.What is the value of the digit 8 in 28.749? (a) 0.08 (b) 0.8 (c) 8 (d) 80
  20. 20.What is the value of the digit 7 in 59.467? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  21. 21.Which is the greatest: 0.034, 0.31, 0.3, 0.298? (a) 0.034 (b) 0.31 (c) 0.3 (d) 0.298
  22. 22.4.78 + 1.9 = ? (a) 6.78 (b) 4.97 (c) 6.68 (d) 6.58
  23. 23.7.54 + 6.6 = ? (a) 8.2 (b) 14.14 (c) 14.04 (d) 14.24
  24. 24.What is the value of the digit 5 in 46.175? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  25. 25.Which is the greatest: 0.7, 0.616, 0.064, 0.76? (a) 0.7 (b) 0.616 (c) 0.064 (d) 0.76
  26. 26.What is the value of the digit 9 in 48.193? (a) 9 (b) 0.9 (c) 0.09 (d) 0.009
  27. 27.What is the value of the digit 7 in 82.714? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  28. 28.What is the value of the digit 3 in 54.831? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  29. 29.Which is the greatest: 0.515, 0.061, 0.6, 0.62? (a) 0.515 (b) 0.061 (c) 0.6 (d) 0.62
  30. 30.4.04 + 1.5 = ? (a) 5.54 (b) 5.44 (c) 5.64 (d) 4.19
  31. 31.5.85 + 3.1 = ? (a) 6.16 (b) 8.85 (c) 9.05 (d) 8.95
  32. 32.Which is the smallest: 0.428, 0.5, 0.072, 0.51? (a) 0.428 (b) 0.5 (c) 0.072 (d) 0.51
  33. 33.2.33 + 5.1 = ? (a) 7.33 (b) 2.84 (c) 7.53 (d) 7.43
  34. 34.5.61 + 9.3 = ? (a) 15.01 (b) 14.81 (c) 6.54 (d) 14.91
  35. 35.What is the value of the digit 9 in 56.931? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
  36. 36.1.11 + 3.6 = ? (a) 4.71 (b) 1.47 (c) 4.61 (d) 4.81
  37. 37.Which is the smallest: 0.354, 0.45, 0.021, 0.4? (a) 0.354 (b) 0.45 (c) 0.021 (d) 0.4
  38. 38.3.56 + 2.9 = ? (a) 6.46 (b) 3.85 (c) 6.56 (d) 6.36
  39. 39.Which is the smallest: 0.7, 0.017, 0.72, 0.681? (a) 0.7 (b) 0.017 (c) 0.72 (d) 0.681
  40. 40.What is the value of the digit 4 in 19.462? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04

Answer key

  1. 13.06
  2. 0.052
  3. 10.15
  4. 0.034
  5. 1
  6. 15.36
  7. 0.63
  8. 7.99
  9. 0.012
  10. 14.44
  11. 13.51
  12. 14.62
  13. 9
  14. 0.093
  15. 12.13
  16. 0.062
  17. 0.77
  18. 4.73
  19. 8
  20. 0.007
  21. 0.31
  22. 6.68
  23. 14.14
  24. 0.005
  25. 0.76
  26. 0.09
  27. 0.7
  28. 0.03
  29. 0.62
  30. 5.54
  31. 8.95
  32. 0.072
  33. 7.43
  34. 14.91
  35. 0.9
  36. 4.71
  37. 0.021
  38. 6.46
  39. 0.017
  40. 0.4

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