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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 140 · 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 greatest: 0.7, 0.022, 0.676, 0.71? (a) 0.7 (b) 0.022 (c) 0.676 (d) 0.71
  2. 2.What is the value of the digit 3 in 54.327? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  3. 3.1.78 + 8.2 = ? (a) 9.98 (b) 10.08 (c) 2.6 (d) 9.88
  4. 4.What is the value of the digit 7 in 63.715? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  5. 5.What is the value of the digit 8 in 51.682? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  6. 6.2.46 + 3.6 = ? (a) 6.16 (b) 6.06 (c) 2.82 (d) 5.96
  7. 7.Which is the smallest: 0.8, 0.782, 0.82, 0.037? (a) 0.8 (b) 0.782 (c) 0.82 (d) 0.037
  8. 8.3.27 + 9.2 = ? (a) 4.19 (b) 12.57 (c) 12.37 (d) 12.47
  9. 9.What is the value of the digit 9 in 56.917? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  10. 10.Which is the smallest: 0.077, 0.42, 0.4, 0.346? (a) 0.077 (b) 0.42 (c) 0.4 (d) 0.346
  11. 11.9.52 + 3.4 = ? (a) 13.02 (b) 12.82 (c) 9.86 (d) 12.92
  12. 12.What is the value of the digit 9 in 17.296? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  13. 13.What is the value of the digit 1 in 16.395? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  14. 14.What is the value of the digit 1 in 51.469? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  15. 15.3.83 + 4.7 = ? (a) 8.53 (b) 4.3 (c) 8.63 (d) 8.43
  16. 16.Which is the smallest: 0.117, 0.028, 0.23, 0.2? (a) 0.117 (b) 0.028 (c) 0.23 (d) 0.2
  17. 17.8.78 + 3.1 = ? (a) 11.78 (b) 9.09 (c) 11.88 (d) 11.98
  18. 18.3.71 + 1.6 = ? (a) 5.21 (b) 3.87 (c) 5.31 (d) 5.41
  19. 19.Which is the smallest: 0.71, 0.093, 0.7, 0.648? (a) 0.71 (b) 0.093 (c) 0.7 (d) 0.648
  20. 20.What is the value of the digit 1 in 32.781? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  21. 21.What is the value of the digit 1 in 34.198? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  22. 22.Which is the greatest: 0.013, 0.5, 0.477, 0.52? (a) 0.013 (b) 0.5 (c) 0.477 (d) 0.52
  23. 23.1.85 + 6.4 = ? (a) 8.35 (b) 8.15 (c) 8.25 (d) 2.49
  24. 24.Which is the greatest: 0.357, 0.4, 0.41, 0.042? (a) 0.357 (b) 0.4 (c) 0.41 (d) 0.042
  25. 25.Which is the smallest: 0.3, 0.32, 0.252, 0.073? (a) 0.3 (b) 0.32 (c) 0.252 (d) 0.073
  26. 26.What is the value of the digit 4 in 98.241? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  27. 27.Which is the smallest: 0.27, 0.087, 0.2, 0.194? (a) 0.27 (b) 0.087 (c) 0.2 (d) 0.194
  28. 28.What is the value of the digit 7 in 27.863? (a) 70 (b) 0.07 (c) 7 (d) 0.7
  29. 29.Which is the greatest: 0.69, 0.043, 0.588, 0.6? (a) 0.69 (b) 0.043 (c) 0.588 (d) 0.6
  30. 30.9.13 + 6.4 = ? (a) 15.63 (b) 15.43 (c) 15.53 (d) 9.77
  31. 31.Which is the greatest: 0.074, 0.79, 0.7, 0.636? (a) 0.074 (b) 0.79 (c) 0.7 (d) 0.636
  32. 32.4.56 + 1.2 = ? (a) 5.66 (b) 4.68 (c) 5.86 (d) 5.76
  33. 33.2.12 + 5.9 = ? (a) 2.71 (b) 7.92 (c) 8.02 (d) 8.12
  34. 34.What is the value of the digit 4 in 32.649? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  35. 35.What is the value of the digit 4 in 27.495? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  36. 36.3.64 + 5.1 = ? (a) 8.84 (b) 8.74 (c) 4.15 (d) 8.64
  37. 37.5.23 + 3.9 = ? (a) 5.62 (b) 9.23 (c) 9.13 (d) 9.03
  38. 38.Which is the smallest: 0.049, 0.768, 0.8, 0.85? (a) 0.049 (b) 0.768 (c) 0.8 (d) 0.85
  39. 39.What is the value of the digit 7 in 56.317? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  40. 40.Which is the greatest: 0.73, 0.7, 0.691, 0.016? (a) 0.73 (b) 0.7 (c) 0.691 (d) 0.016

Answer key

  1. 0.71
  2. 0.3
  3. 9.98
  4. 0.7
  5. 0.08
  6. 6.06
  7. 0.037
  8. 12.47
  9. 0.9
  10. 0.077
  11. 12.92
  12. 0.09
  13. 10
  14. 1
  15. 8.53
  16. 0.028
  17. 11.88
  18. 5.31
  19. 0.093
  20. 0.001
  21. 0.1
  22. 0.52
  23. 8.25
  24. 0.41
  25. 0.073
  26. 0.04
  27. 0.087
  28. 7
  29. 0.69
  30. 15.53
  31. 0.79
  32. 5.76
  33. 8.02
  34. 0.04
  35. 0.4
  36. 8.74
  37. 9.13
  38. 0.049
  39. 0.007
  40. 0.73

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