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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 271 · 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: 0.087, 0.293, 0.3, 0.34? (a) 0.087 (b) 0.293 (c) 0.3 (d) 0.34
  2. 2.Which is the greatest: 0.283, 0.074, 0.37, 0.3? (a) 0.283 (b) 0.074 (c) 0.37 (d) 0.3
  3. 3.What is the value of the digit 2 in 43.298? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  4. 4.Which is the smallest: 0.024, 0.767, 0.84, 0.8? (a) 0.024 (b) 0.767 (c) 0.84 (d) 0.8
  5. 5.8.78 + 1.9 = ? (a) 8.97 (b) 10.68 (c) 10.78 (d) 10.58
  6. 6.9.51 + 9.3 = ? (a) 18.91 (b) 18.71 (c) 10.44 (d) 18.81
  7. 7.Which is the greatest: 0.573, 0.052, 0.62, 0.6? (a) 0.573 (b) 0.052 (c) 0.62 (d) 0.6
  8. 8.Which is the greatest: 0.496, 0.59, 0.032, 0.5? (a) 0.496 (b) 0.59 (c) 0.032 (d) 0.5
  9. 9.What is the value of the digit 8 in 28.345? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  10. 10.2.46 + 8.1 = ? (a) 10.66 (b) 3.27 (c) 10.46 (d) 10.56
  11. 11.What is the value of the digit 8 in 21.384? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  12. 12.Which is the smallest: 0.87, 0.8, 0.082, 0.735? (a) 0.87 (b) 0.8 (c) 0.082 (d) 0.735
  13. 13.3.12 + 4.1 = ? (a) 7.32 (b) 7.22 (c) 3.53 (d) 7.12
  14. 14.4.93 + 2.9 = ? (a) 7.93 (b) 5.22 (c) 7.73 (d) 7.83
  15. 15.Which is the greatest: 0.256, 0.32, 0.089, 0.3? (a) 0.256 (b) 0.32 (c) 0.089 (d) 0.3
  16. 16.What is the value of the digit 1 in 26.148? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  17. 17.What is the value of the digit 5 in 54.928? (a) 50 (b) 5 (c) 0.05 (d) 0.5
  18. 18.Which is the greatest: 0.023, 0.5, 0.476, 0.55? (a) 0.023 (b) 0.5 (c) 0.476 (d) 0.55
  19. 19.What is the value of the digit 8 in 98.263? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  20. 20.What is the value of the digit 7 in 23.174? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  21. 21.Which is the smallest: 0.053, 0.2, 0.125, 0.26? (a) 0.053 (b) 0.2 (c) 0.125 (d) 0.26
  22. 22.1.41 + 3.1 = ? (a) 4.51 (b) 4.61 (c) 1.72 (d) 4.41
  23. 23.4.43 + 7.5 = ? (a) 11.93 (b) 12.03 (c) 11.83 (d) 5.18
  24. 24.What is the value of the digit 6 in 34.567? (a) 6 (b) 0.006 (c) 0.6 (d) 0.06
  25. 25.What is the value of the digit 4 in 65.439? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  26. 26.Which is the greatest: 0.85, 0.025, 0.8, 0.753? (a) 0.85 (b) 0.025 (c) 0.8 (d) 0.753
  27. 27.Which is the greatest: 0.24, 0.2, 0.135, 0.028? (a) 0.24 (b) 0.2 (c) 0.135 (d) 0.028
  28. 28.1.16 + 8.7 = ? (a) 9.76 (b) 2.03 (c) 9.96 (d) 9.86
  29. 29.What is the value of the digit 9 in 56.439? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  30. 30.Which is the greatest: 0.722, 0.86, 0.051, 0.8? (a) 0.722 (b) 0.86 (c) 0.051 (d) 0.8
  31. 31.What is the value of the digit 8 in 81.457? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  32. 32.8.57 + 2.7 = ? (a) 11.17 (b) 8.84 (c) 11.37 (d) 11.27
  33. 33.7.06 + 2.1 = ? (a) 9.06 (b) 7.27 (c) 9.16 (d) 9.26
  34. 34.What is the value of the digit 2 in 72.596? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  35. 35.Which is the smallest: 0.32, 0.294, 0.3, 0.032? (a) 0.32 (b) 0.294 (c) 0.3 (d) 0.032
  36. 36.What is the value of the digit 9 in 58.971? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  37. 37.Which is the greatest: 0.159, 0.021, 0.2, 0.24? (a) 0.159 (b) 0.021 (c) 0.2 (d) 0.24
  38. 38.2.97 + 8.4 = ? (a) 3.81 (b) 11.27 (c) 11.37 (d) 11.47
  39. 39.Which is the greatest: 0.077, 0.49, 0.382, 0.4? (a) 0.077 (b) 0.49 (c) 0.382 (d) 0.4
  40. 40.What is the value of the digit 1 in 61.874? (a) 10 (b) 1 (c) 0.1 (d) 0.01

Answer key

  1. 0.34
  2. 0.37
  3. 0.2
  4. 0.024
  5. 10.68
  6. 18.81
  7. 0.62
  8. 0.59
  9. 8
  10. 10.56
  11. 0.08
  12. 0.082
  13. 7.22
  14. 7.83
  15. 0.32
  16. 0.1
  17. 50
  18. 0.55
  19. 8
  20. 0.07
  21. 0.053
  22. 4.51
  23. 11.93
  24. 0.06
  25. 0.4
  26. 0.85
  27. 0.24
  28. 9.86
  29. 0.009
  30. 0.86
  31. 80
  32. 11.27
  33. 9.16
  34. 2
  35. 0.032
  36. 0.9
  37. 0.24
  38. 11.37
  39. 0.49
  40. 1

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