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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 766 · 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: 0.29, 0.086, 0.178, 0.2? (a) 0.29 (b) 0.086 (c) 0.178 (d) 0.2
  2. 2.Which is the smallest: 0.042, 0.4, 0.326, 0.45? (a) 0.042 (b) 0.4 (c) 0.326 (d) 0.45
  3. 3.1.97 + 7.9 = ? (a) 9.97 (b) 9.77 (c) 2.76 (d) 9.87
  4. 4.What is the value of the digit 2 in 86.321? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  5. 5.9.67 + 5.2 = ? (a) 14.87 (b) 10.19 (c) 14.77 (d) 14.97
  6. 6.What is the value of the digit 5 in 94.521? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  7. 7.Which is the smallest: 0.6, 0.092, 0.64, 0.597? (a) 0.6 (b) 0.092 (c) 0.64 (d) 0.597
  8. 8.Which is the greatest: 0.055, 0.124, 0.25, 0.2? (a) 0.055 (b) 0.124 (c) 0.25 (d) 0.2
  9. 9.Which is the smallest: 0.132, 0.011, 0.2, 0.23? (a) 0.132 (b) 0.011 (c) 0.2 (d) 0.23
  10. 10.What is the value of the digit 7 in 37.948? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  11. 11.What is the value of the digit 5 in 38.457? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  12. 12.6.75 + 2.8 = ? (a) 9.55 (b) 9.45 (c) 7.03 (d) 9.65
  13. 13.1.35 + 9.1 = ? (a) 10.35 (b) 10.45 (c) 10.55 (d) 2.26
  14. 14.Which is the smallest: 0.459, 0.5, 0.057, 0.51? (a) 0.459 (b) 0.5 (c) 0.057 (d) 0.51
  15. 15.8.51 + 4.4 = ? (a) 12.91 (b) 8.95 (c) 12.81 (d) 13.01
  16. 16.Which is the greatest: 0.22, 0.061, 0.2, 0.182? (a) 0.22 (b) 0.061 (c) 0.2 (d) 0.182
  17. 17.Which is the greatest: 0.047, 0.21, 0.2, 0.181? (a) 0.047 (b) 0.21 (c) 0.2 (d) 0.181
  18. 18.7.92 + 6.6 = ? (a) 14.62 (b) 8.58 (c) 14.52 (d) 14.42
  19. 19.Which is the greatest: 0.46, 0.066, 0.4, 0.374? (a) 0.46 (b) 0.066 (c) 0.4 (d) 0.374
  20. 20.What is the value of the digit 2 in 25.964? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  21. 21.Which is the greatest: 0.235, 0.31, 0.014, 0.3? (a) 0.235 (b) 0.31 (c) 0.014 (d) 0.3
  22. 22.8.21 + 8.4 = ? (a) 16.51 (b) 16.71 (c) 16.61 (d) 9.05
  23. 23.Which is the smallest: 0.52, 0.038, 0.449, 0.5? (a) 0.52 (b) 0.038 (c) 0.449 (d) 0.5
  24. 24.What is the value of the digit 4 in 48.157? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  25. 25.6.88 + 5.2 = ? (a) 12.18 (b) 12.08 (c) 11.98 (d) 7.4
  26. 26.Which is the smallest: 0.46, 0.058, 0.4, 0.359? (a) 0.46 (b) 0.058 (c) 0.4 (d) 0.359
  27. 27.Which is the smallest: 0.3, 0.037, 0.37, 0.277? (a) 0.3 (b) 0.037 (c) 0.37 (d) 0.277
  28. 28.Which is the greatest: 0.024, 0.594, 0.6, 0.61? (a) 0.024 (b) 0.594 (c) 0.6 (d) 0.61
  29. 29.Which is the greatest: 0.73, 0.621, 0.7, 0.051? (a) 0.73 (b) 0.621 (c) 0.7 (d) 0.051
  30. 30.What is the value of the digit 5 in 51.673? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  31. 31.Which is the smallest: 0.24, 0.116, 0.091, 0.2? (a) 0.24 (b) 0.116 (c) 0.091 (d) 0.2
  32. 32.Which is the smallest: 0.6, 0.581, 0.019, 0.62? (a) 0.6 (b) 0.581 (c) 0.019 (d) 0.62
  33. 33.Which is the smallest: 0.055, 0.8, 0.769, 0.88? (a) 0.055 (b) 0.8 (c) 0.769 (d) 0.88
  34. 34.3.46 + 2.7 = ? (a) 6.16 (b) 6.06 (c) 3.73 (d) 6.26
  35. 35.Which is the greatest: 0.43, 0.311, 0.4, 0.056? (a) 0.43 (b) 0.311 (c) 0.4 (d) 0.056
  36. 36.6.01 + 6.1 = ? (a) 6.62 (b) 12.21 (c) 12.11 (d) 12.01
  37. 37.What is the value of the digit 7 in 56.847? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  38. 38.What is the value of the digit 7 in 63.279? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  39. 39.What is the value of the digit 8 in 84.713? (a) 0.08 (b) 0.8 (c) 8 (d) 80
  40. 40.8.11 + 1.1 = ? (a) 8.22 (b) 9.21 (c) 9.31 (d) 9.11

Answer key

  1. 0.086
  2. 0.042
  3. 9.87
  4. 0.02
  5. 14.87
  6. 0.5
  7. 0.092
  8. 0.25
  9. 0.011
  10. 7
  11. 0.05
  12. 9.55
  13. 10.45
  14. 0.057
  15. 12.91
  16. 0.22
  17. 0.21
  18. 14.52
  19. 0.46
  20. 20
  21. 0.31
  22. 16.61
  23. 0.038
  24. 40
  25. 12.08
  26. 0.058
  27. 0.037
  28. 0.61
  29. 0.73
  30. 50
  31. 0.091
  32. 0.019
  33. 0.055
  34. 6.16
  35. 0.43
  36. 12.11
  37. 0.007
  38. 0.07
  39. 80
  40. 9.21

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