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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 851 · 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 9 in 79.253? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  2. 2.4.54 + 7.9 = ? (a) 12.34 (b) 12.54 (c) 5.33 (d) 12.44
  3. 3.Which is the greatest: 0.43, 0.035, 0.4, 0.311? (a) 0.43 (b) 0.035 (c) 0.4 (d) 0.311
  4. 4.Which is the smallest: 0.38, 0.025, 0.256, 0.3? (a) 0.38 (b) 0.025 (c) 0.256 (d) 0.3
  5. 5.Which is the greatest: 0.3, 0.32, 0.233, 0.025? (a) 0.3 (b) 0.32 (c) 0.233 (d) 0.025
  6. 6.Which is the smallest: 0.327, 0.094, 0.45, 0.4? (a) 0.327 (b) 0.094 (c) 0.45 (d) 0.4
  7. 7.Which is the greatest: 0.027, 0.2, 0.182, 0.23? (a) 0.027 (b) 0.2 (c) 0.182 (d) 0.23
  8. 8.What is the value of the digit 4 in 93.647? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  9. 9.Which is the smallest: 0.689, 0.7, 0.089, 0.71? (a) 0.689 (b) 0.7 (c) 0.089 (d) 0.71
  10. 10.Which is the smallest: 0.3, 0.223, 0.35, 0.088? (a) 0.3 (b) 0.223 (c) 0.35 (d) 0.088
  11. 11.Which is the greatest: 0.028, 0.64, 0.6, 0.582? (a) 0.028 (b) 0.64 (c) 0.6 (d) 0.582
  12. 12.Which is the greatest: 0.086, 0.29, 0.141, 0.2? (a) 0.086 (b) 0.29 (c) 0.141 (d) 0.2
  13. 13.What is the value of the digit 4 in 91.746? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  14. 14.What is the value of the digit 3 in 71.463? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  15. 15.What is the value of the digit 6 in 86.274? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  16. 16.9.47 + 1.6 = ? (a) 11.17 (b) 11.07 (c) 9.63 (d) 10.97
  17. 17.What is the value of the digit 3 in 94.523? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  18. 18.3.76 + 3.4 = ? (a) 7.26 (b) 7.06 (c) 4.1 (d) 7.16
  19. 19.What is the value of the digit 1 in 62.319? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  20. 20.3.21 + 6.9 = ? (a) 10.21 (b) 3.9 (c) 10.01 (d) 10.11
  21. 21.Which is the greatest: 0.027, 0.2, 0.29, 0.126? (a) 0.027 (b) 0.2 (c) 0.29 (d) 0.126
  22. 22.3.11 + 5.6 = ? (a) 3.67 (b) 8.81 (c) 8.61 (d) 8.71
  23. 23.Which is the smallest: 0.33, 0.215, 0.013, 0.3? (a) 0.33 (b) 0.215 (c) 0.013 (d) 0.3
  24. 24.Which is the smallest: 0.7, 0.041, 0.72, 0.676? (a) 0.7 (b) 0.041 (c) 0.72 (d) 0.676
  25. 25.1.68 + 8.1 = ? (a) 2.49 (b) 9.78 (c) 9.88 (d) 9.68
  26. 26.Which is the smallest: 0.3, 0.38, 0.263, 0.088? (a) 0.3 (b) 0.38 (c) 0.263 (d) 0.088
  27. 27.What is the value of the digit 5 in 59.726? (a) 50 (b) 5 (c) 0.05 (d) 0.5
  28. 28.Which is the smallest: 0.49, 0.4, 0.081, 0.337? (a) 0.49 (b) 0.4 (c) 0.081 (d) 0.337
  29. 29.1.67 + 2.1 = ? (a) 3.87 (b) 3.67 (c) 3.77 (d) 1.88
  30. 30.Which is the greatest: 0.24, 0.2, 0.189, 0.023? (a) 0.24 (b) 0.2 (c) 0.189 (d) 0.023
  31. 31.8.62 + 6.9 = ? (a) 15.42 (b) 15.62 (c) 15.52 (d) 9.31
  32. 32.What is the value of the digit 8 in 91.853? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  33. 33.What is the value of the digit 9 in 91.842? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  34. 34.Which is the greatest: 0.088, 0.21, 0.159, 0.2? (a) 0.088 (b) 0.21 (c) 0.159 (d) 0.2
  35. 35.What is the value of the digit 9 in 82.391? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  36. 36.1.45 + 6.1 = ? (a) 7.45 (b) 7.55 (c) 2.06 (d) 7.65
  37. 37.7.55 + 4.1 = ? (a) 11.65 (b) 7.96 (c) 11.55 (d) 11.75
  38. 38.Which is the greatest: 0.098, 0.574, 0.6, 0.69? (a) 0.098 (b) 0.574 (c) 0.6 (d) 0.69
  39. 39.7.93 + 2.1 = ? (a) 10.13 (b) 8.14 (c) 10.03 (d) 9.93
  40. 40.Which is the greatest: 0.522, 0.67, 0.039, 0.6? (a) 0.522 (b) 0.67 (c) 0.039 (d) 0.6

Answer key

  1. 9
  2. 12.44
  3. 0.43
  4. 0.025
  5. 0.32
  6. 0.094
  7. 0.23
  8. 0.04
  9. 0.089
  10. 0.088
  11. 0.64
  12. 0.29
  13. 0.04
  14. 0.003
  15. 6
  16. 11.07
  17. 0.003
  18. 7.16
  19. 0.01
  20. 10.11
  21. 0.29
  22. 8.71
  23. 0.013
  24. 0.041
  25. 9.78
  26. 0.088
  27. 50
  28. 0.081
  29. 3.77
  30. 0.24
  31. 15.52
  32. 0.8
  33. 90
  34. 0.21
  35. 0.09
  36. 7.55
  37. 11.65
  38. 0.69
  39. 10.03
  40. 0.67

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