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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 628 · 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: 0.7, 0.647, 0.085, 0.74? (a) 0.7 (b) 0.647 (c) 0.085 (d) 0.74
  2. 2.Which is the greatest: 0.2, 0.29, 0.096, 0.155? (a) 0.2 (b) 0.29 (c) 0.096 (d) 0.155
  3. 3.9.75 + 9.9 = ? (a) 19.65 (b) 19.55 (c) 19.75 (d) 10.74
  4. 4.Which is the smallest: 0.58, 0.074, 0.5, 0.411? (a) 0.58 (b) 0.074 (c) 0.5 (d) 0.411
  5. 5.4.39 + 3.6 = ? (a) 8.09 (b) 4.75 (c) 7.89 (d) 7.99
  6. 6.Which is the smallest: 0.38, 0.256, 0.3, 0.068? (a) 0.38 (b) 0.256 (c) 0.3 (d) 0.068
  7. 7.8.84 + 7.1 = ? (a) 15.84 (b) 16.04 (c) 15.94 (d) 9.55
  8. 8.What is the value of the digit 8 in 81.472? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  9. 9.9.78 + 8.3 = ? (a) 18.08 (b) 17.98 (c) 18.18 (d) 10.61
  10. 10.6.19 + 3.9 = ? (a) 10.09 (b) 10.19 (c) 9.99 (d) 6.58
  11. 11.Which is the greatest: 0.036, 0.465, 0.57, 0.5? (a) 0.036 (b) 0.465 (c) 0.57 (d) 0.5
  12. 12.What is the value of the digit 5 in 16.895? (a) 5 (b) 0.005 (c) 0.05 (d) 0.5
  13. 13.8.67 + 3.7 = ? (a) 12.37 (b) 12.47 (c) 12.27 (d) 9.04
  14. 14.What is the value of the digit 8 in 19.285? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  15. 15.Which is the smallest: 0.037, 0.7, 0.72, 0.663? (a) 0.037 (b) 0.7 (c) 0.72 (d) 0.663
  16. 16.Which is the smallest: 0.4, 0.46, 0.385, 0.034? (a) 0.4 (b) 0.46 (c) 0.385 (d) 0.034
  17. 17.Which is the smallest: 0.036, 0.393, 0.48, 0.4? (a) 0.036 (b) 0.393 (c) 0.48 (d) 0.4
  18. 18.Which is the smallest: 0.215, 0.34, 0.045, 0.3? (a) 0.215 (b) 0.34 (c) 0.045 (d) 0.3
  19. 19.What is the value of the digit 2 in 52.186? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  20. 20.Which is the greatest: 0.77, 0.695, 0.7, 0.012? (a) 0.77 (b) 0.695 (c) 0.7 (d) 0.012
  21. 21.What is the value of the digit 4 in 36.584? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  22. 22.4.09 + 9.3 = ? (a) 13.39 (b) 13.49 (c) 5.02 (d) 13.29
  23. 23.What is the value of the digit 5 in 52.981? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  24. 24.8.28 + 4.7 = ? (a) 8.75 (b) 12.98 (c) 13.08 (d) 12.88
  25. 25.9.54 + 4.1 = ? (a) 9.95 (b) 13.64 (c) 13.54 (d) 13.74
  26. 26.1.17 + 4.4 = ? (a) 5.47 (b) 5.67 (c) 5.57 (d) 1.61
  27. 27.3.53 + 9.6 = ? (a) 13.03 (b) 13.13 (c) 13.23 (d) 4.49
  28. 28.6.29 + 2.2 = ? (a) 6.51 (b) 8.59 (c) 8.39 (d) 8.49
  29. 29.What is the value of the digit 2 in 23.614? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  30. 30.6.03 + 8.7 = ? (a) 14.63 (b) 14.73 (c) 6.9 (d) 14.83
  31. 31.What is the value of the digit 9 in 86.391? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  32. 32.4.41 + 6.6 = ? (a) 5.07 (b) 11.01 (c) 10.91 (d) 11.11
  33. 33.What is the value of the digit 5 in 92.865? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  34. 34.3.21 + 1.8 = ? (a) 3.39 (b) 4.91 (c) 5.01 (d) 5.11
  35. 35.5.81 + 3.4 = ? (a) 6.15 (b) 9.11 (c) 9.21 (d) 9.31
  36. 36.What is the value of the digit 3 in 53.246? (a) 0.03 (b) 0.3 (c) 3 (d) 30
  37. 37.What is the value of the digit 4 in 58.496? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  38. 38.Which is the greatest: 0.282, 0.041, 0.32, 0.3? (a) 0.282 (b) 0.041 (c) 0.32 (d) 0.3
  39. 39.What is the value of the digit 7 in 37.465? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  40. 40.What is the value of the digit 9 in 86.923? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9

Answer key

  1. 0.085
  2. 0.29
  3. 19.65
  4. 0.074
  5. 7.99
  6. 0.068
  7. 15.94
  8. 80
  9. 18.08
  10. 10.09
  11. 0.57
  12. 0.005
  13. 12.37
  14. 0.08
  15. 0.037
  16. 0.034
  17. 0.036
  18. 0.045
  19. 2
  20. 0.77
  21. 0.004
  22. 13.39
  23. 50
  24. 12.98
  25. 13.64
  26. 5.57
  27. 13.13
  28. 8.49
  29. 20
  30. 14.73
  31. 0.09
  32. 11.01
  33. 0.005
  34. 5.01
  35. 9.21
  36. 3
  37. 0.4
  38. 0.32
  39. 7
  40. 0.9

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