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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 421 · 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: 0.772, 0.8, 0.83, 0.088? (a) 0.772 (b) 0.8 (c) 0.83 (d) 0.088
  2. 2.4.57 + 1.8 = ? (a) 6.27 (b) 6.37 (c) 6.47 (d) 4.75
  3. 3.4.81 + 2.2 = ? (a) 7.01 (b) 7.11 (c) 5.03 (d) 6.91
  4. 4.What is the value of the digit 2 in 32.584? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  5. 5.8.77 + 9.7 = ? (a) 18.37 (b) 9.74 (c) 18.57 (d) 18.47
  6. 6.Which is the smallest: 0.7, 0.037, 0.72, 0.617? (a) 0.7 (b) 0.037 (c) 0.72 (d) 0.617
  7. 7.Which is the smallest: 0.47, 0.355, 0.088, 0.4? (a) 0.47 (b) 0.355 (c) 0.088 (d) 0.4
  8. 8.Which is the greatest: 0.031, 0.144, 0.2, 0.24? (a) 0.031 (b) 0.144 (c) 0.2 (d) 0.24
  9. 9.What is the value of the digit 7 in 75.193? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  10. 10.Which is the greatest: 0.031, 0.762, 0.84, 0.8? (a) 0.031 (b) 0.762 (c) 0.84 (d) 0.8
  11. 11.Which is the smallest: 0.041, 0.434, 0.58, 0.5? (a) 0.041 (b) 0.434 (c) 0.58 (d) 0.5
  12. 12.Which is the greatest: 0.52, 0.459, 0.098, 0.5? (a) 0.52 (b) 0.459 (c) 0.098 (d) 0.5
  13. 13.5.47 + 3.1 = ? (a) 8.47 (b) 8.67 (c) 5.78 (d) 8.57
  14. 14.7.44 + 1.3 = ? (a) 8.74 (b) 8.84 (c) 7.57 (d) 8.64
  15. 15.Which is the smallest: 0.349, 0.4, 0.43, 0.023? (a) 0.349 (b) 0.4 (c) 0.43 (d) 0.023
  16. 16.1.44 + 2.1 = ? (a) 1.65 (b) 3.54 (c) 3.44 (d) 3.64
  17. 17.2.94 + 8.9 = ? (a) 11.74 (b) 3.83 (c) 11.84 (d) 11.94
  18. 18.What is the value of the digit 7 in 89.471? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  19. 19.What is the value of the digit 7 in 73.945? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  20. 20.What is the value of the digit 2 in 23.674? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  21. 21.What is the value of the digit 2 in 41.628? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  22. 22.What is the value of the digit 1 in 19.347? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  23. 23.Which is the greatest: 0.721, 0.8, 0.039, 0.83? (a) 0.721 (b) 0.8 (c) 0.039 (d) 0.83
  24. 24.What is the value of the digit 7 in 69.578? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  25. 25.What is the value of the digit 4 in 72.348? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  26. 26.6.12 + 2.2 = ? (a) 8.32 (b) 8.42 (c) 6.34 (d) 8.22
  27. 27.Which is the greatest: 0.728, 0.061, 0.81, 0.8? (a) 0.728 (b) 0.061 (c) 0.81 (d) 0.8
  28. 28.Which is the smallest: 0.457, 0.5, 0.56, 0.094? (a) 0.457 (b) 0.5 (c) 0.56 (d) 0.094
  29. 29.8.05 + 6.8 = ? (a) 14.75 (b) 14.95 (c) 14.85 (d) 8.73
  30. 30.Which is the smallest: 0.033, 0.122, 0.23, 0.2? (a) 0.033 (b) 0.122 (c) 0.23 (d) 0.2
  31. 31.What is the value of the digit 6 in 96.814? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  32. 32.Which is the greatest: 0.8, 0.027, 0.87, 0.716? (a) 0.8 (b) 0.027 (c) 0.87 (d) 0.716
  33. 33.Which is the smallest: 0.68, 0.034, 0.562, 0.6? (a) 0.68 (b) 0.034 (c) 0.562 (d) 0.6
  34. 34.1.65 + 4.5 = ? (a) 2.1 (b) 6.15 (c) 6.05 (d) 6.25
  35. 35.What is the value of the digit 8 in 51.483? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  36. 36.What is the value of the digit 2 in 24.658? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  37. 37.What is the value of the digit 2 in 61.329? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  38. 38.Which is the smallest: 0.44, 0.331, 0.083, 0.4? (a) 0.44 (b) 0.331 (c) 0.083 (d) 0.4
  39. 39.What is the value of the digit 6 in 21.476? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  40. 40.3.18 + 7.1 = ? (a) 10.38 (b) 3.89 (c) 10.28 (d) 10.18

Answer key

  1. 0.83
  2. 6.37
  3. 7.01
  4. 2
  5. 18.47
  6. 0.037
  7. 0.088
  8. 0.24
  9. 70
  10. 0.84
  11. 0.041
  12. 0.52
  13. 8.57
  14. 8.74
  15. 0.023
  16. 3.54
  17. 11.84
  18. 0.07
  19. 70
  20. 20
  21. 0.02
  22. 10
  23. 0.83
  24. 0.07
  25. 0.04
  26. 8.32
  27. 0.81
  28. 0.094
  29. 14.85
  30. 0.033
  31. 6
  32. 0.87
  33. 0.034
  34. 6.15
  35. 0.08
  36. 20
  37. 0.02
  38. 0.083
  39. 0.006
  40. 10.28

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