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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 860 · 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 6 in 78.536? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  2. 2.Which is the greatest: 0.8, 0.012, 0.741, 0.86? (a) 0.8 (b) 0.012 (c) 0.741 (d) 0.86
  3. 3.Which is the smallest: 0.128, 0.2, 0.077, 0.27? (a) 0.128 (b) 0.2 (c) 0.077 (d) 0.27
  4. 4.8.25 + 2.4 = ? (a) 8.49 (b) 10.75 (c) 10.65 (d) 10.55
  5. 5.Which is the smallest: 0.251, 0.3, 0.057, 0.39? (a) 0.251 (b) 0.3 (c) 0.057 (d) 0.39
  6. 6.3.86 + 4.8 = ? (a) 8.76 (b) 4.34 (c) 8.66 (d) 8.56
  7. 7.What is the value of the digit 9 in 73.958? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  8. 8.What is the value of the digit 1 in 86.714? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  9. 9.Which is the greatest: 0.5, 0.089, 0.426, 0.52? (a) 0.5 (b) 0.089 (c) 0.426 (d) 0.52
  10. 10.7.96 + 2.7 = ? (a) 10.66 (b) 10.76 (c) 8.23 (d) 10.56
  11. 11.Which is the greatest: 0.029, 0.146, 0.22, 0.2? (a) 0.029 (b) 0.146 (c) 0.22 (d) 0.2
  12. 12.What is the value of the digit 7 in 91.576? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  13. 13.3.61 + 6.4 = ? (a) 9.91 (b) 10.01 (c) 10.11 (d) 4.25
  14. 14.9.31 + 1.7 = ? (a) 9.48 (b) 11.11 (c) 11.01 (d) 10.91
  15. 15.Which is the greatest: 0.4, 0.43, 0.058, 0.336? (a) 0.4 (b) 0.43 (c) 0.058 (d) 0.336
  16. 16.6.08 + 3.4 = ? (a) 6.42 (b) 9.58 (c) 9.48 (d) 9.38
  17. 17.What is the value of the digit 7 in 43.172? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  18. 18.4.04 + 6.9 = ? (a) 4.73 (b) 10.84 (c) 11.04 (d) 10.94
  19. 19.What is the value of the digit 2 in 61.295? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  20. 20.Which is the greatest: 0.055, 0.426, 0.55, 0.5? (a) 0.055 (b) 0.426 (c) 0.55 (d) 0.5
  21. 21.Which is the smallest: 0.26, 0.165, 0.2, 0.034? (a) 0.26 (b) 0.165 (c) 0.2 (d) 0.034
  22. 22.8.53 + 9.6 = ? (a) 18.23 (b) 18.03 (c) 9.49 (d) 18.13
  23. 23.4.41 + 8.7 = ? (a) 13.21 (b) 5.28 (c) 13.01 (d) 13.11
  24. 24.9.61 + 3.8 = ? (a) 13.41 (b) 13.31 (c) 9.99 (d) 13.51
  25. 25.Which is the greatest: 0.4, 0.48, 0.392, 0.091? (a) 0.4 (b) 0.48 (c) 0.392 (d) 0.091
  26. 26.What is the value of the digit 5 in 54.871? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  27. 27.Which is the greatest: 0.4, 0.341, 0.015, 0.41? (a) 0.4 (b) 0.341 (c) 0.015 (d) 0.41
  28. 28.Which is the smallest: 0.6, 0.042, 0.61, 0.547? (a) 0.6 (b) 0.042 (c) 0.61 (d) 0.547
  29. 29.Which is the greatest: 0.21, 0.036, 0.2, 0.136? (a) 0.21 (b) 0.036 (c) 0.2 (d) 0.136
  30. 30.2.78 + 7.6 = ? (a) 10.38 (b) 3.54 (c) 10.28 (d) 10.48
  31. 31.Which is the smallest: 0.627, 0.7, 0.013, 0.74? (a) 0.627 (b) 0.7 (c) 0.013 (d) 0.74
  32. 32.7.79 + 1.5 = ? (a) 9.39 (b) 9.19 (c) 7.94 (d) 9.29
  33. 33.9.92 + 9.3 = ? (a) 19.12 (b) 19.22 (c) 19.32 (d) 10.85
  34. 34.8.08 + 7.6 = ? (a) 15.78 (b) 8.84 (c) 15.58 (d) 15.68
  35. 35.Which is the smallest: 0.21, 0.196, 0.2, 0.035? (a) 0.21 (b) 0.196 (c) 0.2 (d) 0.035
  36. 36.Which is the greatest: 0.85, 0.062, 0.8, 0.722? (a) 0.85 (b) 0.062 (c) 0.8 (d) 0.722
  37. 37.Which is the smallest: 0.023, 0.628, 0.7, 0.73? (a) 0.023 (b) 0.628 (c) 0.7 (d) 0.73
  38. 38.Which is the greatest: 0.026, 0.119, 0.2, 0.27? (a) 0.026 (b) 0.119 (c) 0.2 (d) 0.27
  39. 39.1.48 + 8.9 = ? (a) 2.37 (b) 10.48 (c) 10.28 (d) 10.38
  40. 40.Which is the smallest: 0.3, 0.31, 0.029, 0.236? (a) 0.3 (b) 0.31 (c) 0.029 (d) 0.236

Answer key

  1. 0.006
  2. 0.86
  3. 0.077
  4. 10.65
  5. 0.057
  6. 8.66
  7. 0.9
  8. 0.01
  9. 0.52
  10. 10.66
  11. 0.22
  12. 0.07
  13. 10.01
  14. 11.01
  15. 0.43
  16. 9.48
  17. 0.07
  18. 10.94
  19. 0.2
  20. 0.55
  21. 0.034
  22. 18.13
  23. 13.11
  24. 13.41
  25. 0.48
  26. 50
  27. 0.41
  28. 0.042
  29. 0.21
  30. 10.38
  31. 0.013
  32. 9.29
  33. 19.22
  34. 15.68
  35. 0.035
  36. 0.85
  37. 0.023
  38. 0.27
  39. 10.38
  40. 0.029

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