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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 599 · 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 3 in 31.649? (a) 0.03 (b) 0.3 (c) 3 (d) 30
  2. 2.Which is the smallest: 0.036, 0.5, 0.58, 0.413? (a) 0.036 (b) 0.5 (c) 0.58 (d) 0.413
  3. 3.Which is the smallest: 0.7, 0.013, 0.649, 0.71? (a) 0.7 (b) 0.013 (c) 0.649 (d) 0.71
  4. 4.3.46 + 2.1 = ? (a) 3.67 (b) 5.66 (c) 5.46 (d) 5.56
  5. 5.1.21 + 6.2 = ? (a) 7.31 (b) 7.41 (c) 1.83 (d) 7.51
  6. 6.What is the value of the digit 6 in 56.927? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  7. 7.3.58 + 7.3 = ? (a) 4.31 (b) 10.98 (c) 10.88 (d) 10.78
  8. 8.2.64 + 7.8 = ? (a) 3.42 (b) 10.54 (c) 10.34 (d) 10.44
  9. 9.What is the value of the digit 2 in 82.164? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  10. 10.1.45 + 2.9 = ? (a) 4.45 (b) 4.25 (c) 1.74 (d) 4.35
  11. 11.Which is the greatest: 0.035, 0.72, 0.675, 0.7? (a) 0.035 (b) 0.72 (c) 0.675 (d) 0.7
  12. 12.Which is the smallest: 0.42, 0.4, 0.362, 0.077? (a) 0.42 (b) 0.4 (c) 0.362 (d) 0.077
  13. 13.Which is the greatest: 0.43, 0.392, 0.4, 0.053? (a) 0.43 (b) 0.392 (c) 0.4 (d) 0.053
  14. 14.What is the value of the digit 6 in 25.346? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  15. 15.Which is the smallest: 0.72, 0.7, 0.666, 0.079? (a) 0.72 (b) 0.7 (c) 0.666 (d) 0.079
  16. 16.What is the value of the digit 2 in 52.198? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  17. 17.2.11 + 9.2 = ? (a) 11.31 (b) 11.21 (c) 11.41 (d) 3.03
  18. 18.1.03 + 2.8 = ? (a) 3.83 (b) 3.93 (c) 1.31 (d) 3.73
  19. 19.Which is the greatest: 0.082, 0.2, 0.23, 0.123? (a) 0.082 (b) 0.2 (c) 0.23 (d) 0.123
  20. 20.What is the value of the digit 9 in 95.842? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  21. 21.Which is the greatest: 0.267, 0.38, 0.033, 0.3? (a) 0.267 (b) 0.38 (c) 0.033 (d) 0.3
  22. 22.2.15 + 9.3 = ? (a) 11.55 (b) 3.08 (c) 11.45 (d) 11.35
  23. 23.6.06 + 5.8 = ? (a) 11.96 (b) 11.76 (c) 6.64 (d) 11.86
  24. 24.Which is the smallest: 0.549, 0.69, 0.6, 0.062? (a) 0.549 (b) 0.69 (c) 0.6 (d) 0.062
  25. 25.8.41 + 4.3 = ? (a) 8.84 (b) 12.71 (c) 12.81 (d) 12.61
  26. 26.What is the value of the digit 6 in 34.689? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  27. 27.What is the value of the digit 9 in 13.294? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  28. 28.What is the value of the digit 8 in 19.358? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  29. 29.Which is the greatest: 0.24, 0.2, 0.029, 0.114? (a) 0.24 (b) 0.2 (c) 0.029 (d) 0.114
  30. 30.What is the value of the digit 5 in 96.512? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  31. 31.What is the value of the digit 5 in 18.954? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  32. 32.Which is the greatest: 0.24, 0.016, 0.2, 0.121? (a) 0.24 (b) 0.016 (c) 0.2 (d) 0.121
  33. 33.What is the value of the digit 7 in 74.295? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  34. 34.Which is the greatest: 0.46, 0.041, 0.361, 0.4? (a) 0.46 (b) 0.041 (c) 0.361 (d) 0.4
  35. 35.Which is the smallest: 0.3, 0.037, 0.258, 0.36? (a) 0.3 (b) 0.037 (c) 0.258 (d) 0.36
  36. 36.What is the value of the digit 6 in 26.781? (a) 60 (b) 0.6 (c) 6 (d) 0.06
  37. 37.What is the value of the digit 9 in 58.924? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  38. 38.9.15 + 9.2 = ? (a) 18.35 (b) 10.07 (c) 18.45 (d) 18.25
  39. 39.Which is the greatest: 0.794, 0.84, 0.8, 0.045? (a) 0.794 (b) 0.84 (c) 0.8 (d) 0.045
  40. 40.7.41 + 2.2 = ? (a) 9.61 (b) 9.71 (c) 9.51 (d) 7.63

Answer key

  1. 30
  2. 0.036
  3. 0.013
  4. 5.56
  5. 7.41
  6. 6
  7. 10.88
  8. 10.44
  9. 2
  10. 4.35
  11. 0.72
  12. 0.077
  13. 0.43
  14. 0.006
  15. 0.079
  16. 2
  17. 11.31
  18. 3.83
  19. 0.23
  20. 90
  21. 0.38
  22. 11.45
  23. 11.86
  24. 0.062
  25. 12.71
  26. 0.6
  27. 0.09
  28. 0.008
  29. 0.24
  30. 0.5
  31. 0.05
  32. 0.24
  33. 70
  34. 0.46
  35. 0.037
  36. 6
  37. 0.9
  38. 18.35
  39. 0.84
  40. 9.61

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