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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 921 · 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: 0.575, 0.65, 0.6, 0.034? (a) 0.575 (b) 0.65 (c) 0.6 (d) 0.034
  2. 2.What is the value of the digit 3 in 79.356? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  3. 3.3.51 + 1.3 = ? (a) 4.91 (b) 4.71 (c) 3.64 (d) 4.81
  4. 4.Which is the smallest: 0.518, 0.6, 0.092, 0.63? (a) 0.518 (b) 0.6 (c) 0.092 (d) 0.63
  5. 5.What is the value of the digit 3 in 17.352? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  6. 6.What is the value of the digit 4 in 49.132? (a) 40 (b) 4 (c) 0.4 (d) 0.04
  7. 7.Which is the smallest: 0.163, 0.22, 0.2, 0.094? (a) 0.163 (b) 0.22 (c) 0.2 (d) 0.094
  8. 8.4.41 + 6.8 = ? (a) 5.09 (b) 11.11 (c) 11.31 (d) 11.21
  9. 9.Which is the smallest: 0.068, 0.5, 0.464, 0.59? (a) 0.068 (b) 0.5 (c) 0.464 (d) 0.59
  10. 10.What is the value of the digit 8 in 68.534? (a) 80 (b) 0.8 (c) 0.08 (d) 8
  11. 11.Which is the greatest: 0.656, 0.76, 0.095, 0.7? (a) 0.656 (b) 0.76 (c) 0.095 (d) 0.7
  12. 12.What is the value of the digit 8 in 83.165? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  13. 13.6.69 + 5.6 = ? (a) 7.25 (b) 12.19 (c) 12.39 (d) 12.29
  14. 14.3.04 + 7.4 = ? (a) 10.34 (b) 10.54 (c) 10.44 (d) 3.78
  15. 15.Which is the greatest: 0.5, 0.054, 0.427, 0.51? (a) 0.5 (b) 0.054 (c) 0.427 (d) 0.51
  16. 16.Which is the greatest: 0.431, 0.092, 0.52, 0.5? (a) 0.431 (b) 0.092 (c) 0.52 (d) 0.5
  17. 17.What is the value of the digit 3 in 53.147? (a) 0.03 (b) 0.3 (c) 3 (d) 30
  18. 18.1.07 + 2.1 = ? (a) 3.17 (b) 3.07 (c) 1.28 (d) 3.27
  19. 19.Which is the smallest: 0.085, 0.645, 0.7, 0.73? (a) 0.085 (b) 0.645 (c) 0.7 (d) 0.73
  20. 20.6.73 + 6.5 = ? (a) 13.13 (b) 13.23 (c) 13.33 (d) 7.38
  21. 21.Which is the greatest: 0.61, 0.514, 0.064, 0.6? (a) 0.61 (b) 0.514 (c) 0.064 (d) 0.6
  22. 22.1.18 + 7.1 = ? (a) 1.89 (b) 8.38 (c) 8.18 (d) 8.28
  23. 23.What is the value of the digit 8 in 81.634? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  24. 24.7.34 + 6.9 = ? (a) 14.14 (b) 8.03 (c) 14.24 (d) 14.34
  25. 25.2.11 + 3.4 = ? (a) 2.45 (b) 5.61 (c) 5.41 (d) 5.51
  26. 26.Which is the greatest: 0.6, 0.052, 0.61, 0.542? (a) 0.6 (b) 0.052 (c) 0.61 (d) 0.542
  27. 27.What is the value of the digit 3 in 14.723? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  28. 28.6.89 + 6.4 = ? (a) 13.19 (b) 13.39 (c) 7.53 (d) 13.29
  29. 29.9.12 + 2.6 = ? (a) 11.82 (b) 11.72 (c) 11.62 (d) 9.38
  30. 30.What is the value of the digit 2 in 59.283? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  31. 31.5.99 + 3.6 = ? (a) 9.69 (b) 6.35 (c) 9.59 (d) 9.49
  32. 32.What is the value of the digit 7 in 78.651? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  33. 33.What is the value of the digit 4 in 24.678? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  34. 34.Which is the greatest: 0.45, 0.018, 0.4, 0.367? (a) 0.45 (b) 0.018 (c) 0.4 (d) 0.367
  35. 35.2.79 + 2.5 = ? (a) 5.39 (b) 3.04 (c) 5.29 (d) 5.19
  36. 36.What is the value of the digit 1 in 18.473? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  37. 37.Which is the greatest: 0.182, 0.2, 0.016, 0.23? (a) 0.182 (b) 0.2 (c) 0.016 (d) 0.23
  38. 38.5.27 + 8.5 = ? (a) 13.77 (b) 13.87 (c) 13.67 (d) 6.12
  39. 39.What is the value of the digit 9 in 97.645? (a) 90 (b) 0.9 (c) 9 (d) 0.09
  40. 40.What is the value of the digit 2 in 13.287? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2

Answer key

  1. 0.65
  2. 0.3
  3. 4.81
  4. 0.092
  5. 0.3
  6. 40
  7. 0.094
  8. 11.21
  9. 0.068
  10. 8
  11. 0.76
  12. 80
  13. 12.29
  14. 10.44
  15. 0.51
  16. 0.52
  17. 3
  18. 3.17
  19. 0.085
  20. 13.23
  21. 0.61
  22. 8.28
  23. 80
  24. 14.24
  25. 5.51
  26. 0.61
  27. 0.003
  28. 13.29
  29. 11.72
  30. 0.2
  31. 9.59
  32. 70
  33. 4
  34. 0.45
  35. 5.29
  36. 10
  37. 0.23
  38. 13.77
  39. 90
  40. 0.2

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