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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 597 · 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: 0.092, 0.7, 0.652, 0.73? (a) 0.092 (b) 0.7 (c) 0.652 (d) 0.73
  2. 2.What is the value of the digit 4 in 74.382? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  3. 3.2.66 + 6.6 = ? (a) 9.26 (b) 3.32 (c) 9.36 (d) 9.16
  4. 4.What is the value of the digit 9 in 29.436? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  5. 5.8.71 + 5.6 = ? (a) 14.21 (b) 9.27 (c) 14.41 (d) 14.31
  6. 6.8.21 + 9.1 = ? (a) 17.21 (b) 17.41 (c) 17.31 (d) 9.12
  7. 7.What is the value of the digit 6 in 76.584? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  8. 8.4.29 + 6.4 = ? (a) 4.93 (b) 10.79 (c) 10.59 (d) 10.69
  9. 9.Which is the greatest: 0.071, 0.7, 0.649, 0.72? (a) 0.071 (b) 0.7 (c) 0.649 (d) 0.72
  10. 10.Which is the smallest: 0.554, 0.66, 0.092, 0.6? (a) 0.554 (b) 0.66 (c) 0.092 (d) 0.6
  11. 11.What is the value of the digit 7 in 71.243? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  12. 12.What is the value of the digit 1 in 64.138? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  13. 13.What is the value of the digit 1 in 35.172? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  14. 14.What is the value of the digit 3 in 95.731? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  15. 15.What is the value of the digit 4 in 21.654? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  16. 16.6.47 + 4.9 = ? (a) 6.96 (b) 11.47 (c) 11.27 (d) 11.37
  17. 17.7.67 + 8.1 = ? (a) 15.67 (b) 15.87 (c) 15.77 (d) 8.48
  18. 18.Which is the greatest: 0.4, 0.43, 0.341, 0.056? (a) 0.4 (b) 0.43 (c) 0.341 (d) 0.056
  19. 19.Which is the greatest: 0.542, 0.65, 0.014, 0.6? (a) 0.542 (b) 0.65 (c) 0.014 (d) 0.6
  20. 20.What is the value of the digit 8 in 67.218? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  21. 21.Which is the greatest: 0.697, 0.74, 0.7, 0.062? (a) 0.697 (b) 0.74 (c) 0.7 (d) 0.062
  22. 22.6.55 + 8.9 = ? (a) 15.35 (b) 15.55 (c) 15.45 (d) 7.44
  23. 23.2.09 + 6.8 = ? (a) 8.99 (b) 2.77 (c) 8.79 (d) 8.89
  24. 24.What is the value of the digit 5 in 71.459? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  25. 25.5.47 + 9.8 = ? (a) 15.17 (b) 6.45 (c) 15.37 (d) 15.27
  26. 26.9.19 + 4.6 = ? (a) 13.79 (b) 13.89 (c) 9.65 (d) 13.69
  27. 27.Which is the greatest: 0.46, 0.035, 0.4, 0.391? (a) 0.46 (b) 0.035 (c) 0.4 (d) 0.391
  28. 28.Which is the smallest: 0.52, 0.042, 0.5, 0.472? (a) 0.52 (b) 0.042 (c) 0.5 (d) 0.472
  29. 29.What is the value of the digit 8 in 79.582? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  30. 30.Which is the greatest: 0.83, 0.8, 0.753, 0.099? (a) 0.83 (b) 0.8 (c) 0.753 (d) 0.099
  31. 31.Which is the greatest: 0.092, 0.711, 0.87, 0.8? (a) 0.092 (b) 0.711 (c) 0.87 (d) 0.8
  32. 32.Which is the greatest: 0.4, 0.41, 0.399, 0.081? (a) 0.4 (b) 0.41 (c) 0.399 (d) 0.081
  33. 33.What is the value of the digit 3 in 73.659? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  34. 34.4.97 + 1.7 = ? (a) 6.67 (b) 6.57 (c) 6.77 (d) 5.14
  35. 35.4.46 + 2.9 = ? (a) 7.46 (b) 7.36 (c) 4.75 (d) 7.26
  36. 36.What is the value of the digit 9 in 86.491? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  37. 37.2.92 + 1.7 = ? (a) 3.09 (b) 4.72 (c) 4.62 (d) 4.52
  38. 38.6.29 + 5.2 = ? (a) 11.39 (b) 11.59 (c) 11.49 (d) 6.81
  39. 39.Which is the greatest: 0.724, 0.89, 0.085, 0.8? (a) 0.724 (b) 0.89 (c) 0.085 (d) 0.8
  40. 40.What is the value of the digit 7 in 65.731? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07

Answer key

  1. 0.092
  2. 4
  3. 9.26
  4. 9
  5. 14.31
  6. 17.31
  7. 6
  8. 10.69
  9. 0.72
  10. 0.092
  11. 70
  12. 0.1
  13. 0.1
  14. 0.03
  15. 0.004
  16. 11.37
  17. 15.77
  18. 0.43
  19. 0.65
  20. 0.008
  21. 0.74
  22. 15.45
  23. 8.89
  24. 0.05
  25. 15.27
  26. 13.79
  27. 0.46
  28. 0.042
  29. 0.08
  30. 0.83
  31. 0.87
  32. 0.41
  33. 3
  34. 6.67
  35. 7.36
  36. 0.09
  37. 4.62
  38. 11.49
  39. 0.89
  40. 0.7

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