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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 952 · 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 8 in 39.648? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  2. 2.1.62 + 9.1 = ? (a) 10.82 (b) 2.53 (c) 10.72 (d) 10.62
  3. 3.5.69 + 8.4 = ? (a) 6.53 (b) 13.99 (c) 14.09 (d) 14.19
  4. 4.Which is the smallest: 0.016, 0.382, 0.42, 0.4? (a) 0.016 (b) 0.382 (c) 0.42 (d) 0.4
  5. 5.What is the value of the digit 4 in 26.194? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  6. 6.What is the value of the digit 8 in 83.612? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  7. 7.What is the value of the digit 3 in 53.418? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  8. 8.9.04 + 4.9 = ? (a) 13.94 (b) 9.53 (c) 13.84 (d) 14.04
  9. 9.Which is the greatest: 0.411, 0.56, 0.5, 0.092? (a) 0.411 (b) 0.56 (c) 0.5 (d) 0.092
  10. 10.3.31 + 4.5 = ? (a) 7.71 (b) 7.81 (c) 3.76 (d) 7.91
  11. 11.6.52 + 1.7 = ? (a) 8.22 (b) 6.69 (c) 8.12 (d) 8.32
  12. 12.What is the value of the digit 3 in 32.947? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  13. 13.What is the value of the digit 1 in 63.219? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  14. 14.6.99 + 3.2 = ? (a) 7.31 (b) 10.09 (c) 10.19 (d) 10.29
  15. 15.What is the value of the digit 6 in 36.981? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  16. 16.What is the value of the digit 7 in 87.469? (a) 0.7 (b) 70 (c) 0.07 (d) 7
  17. 17.What is the value of the digit 7 in 64.237? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  18. 18.What is the value of the digit 8 in 64.582? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  19. 19.Which is the greatest: 0.148, 0.2, 0.24, 0.081? (a) 0.148 (b) 0.2 (c) 0.24 (d) 0.081
  20. 20.Which is the greatest: 0.61, 0.025, 0.6, 0.522? (a) 0.61 (b) 0.025 (c) 0.6 (d) 0.522
  21. 21.Which is the smallest: 0.87, 0.052, 0.765, 0.8? (a) 0.87 (b) 0.052 (c) 0.765 (d) 0.8
  22. 22.Which is the smallest: 0.069, 0.6, 0.64, 0.534? (a) 0.069 (b) 0.6 (c) 0.64 (d) 0.534
  23. 23.What is the value of the digit 3 in 59.736? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  24. 24.What is the value of the digit 4 in 43.967? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  25. 25.2.64 + 1.3 = ? (a) 3.84 (b) 2.77 (c) 4.04 (d) 3.94
  26. 26.Which is the greatest: 0.488, 0.5, 0.53, 0.064? (a) 0.488 (b) 0.5 (c) 0.53 (d) 0.064
  27. 27.What is the value of the digit 3 in 52.314? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  28. 28.What is the value of the digit 8 in 12.876? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  29. 29.What is the value of the digit 6 in 34.657? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  30. 30.What is the value of the digit 7 in 45.173? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  31. 31.What is the value of the digit 5 in 28.435? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  32. 32.What is the value of the digit 8 in 87.124? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  33. 33.What is the value of the digit 1 in 51.386? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  34. 34.What is the value of the digit 1 in 64.128? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  35. 35.What is the value of the digit 8 in 72.483? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  36. 36.6.11 + 6.9 = ? (a) 12.91 (b) 13.01 (c) 13.11 (d) 6.8
  37. 37.Which is the greatest: 0.031, 0.717, 0.81, 0.8? (a) 0.031 (b) 0.717 (c) 0.81 (d) 0.8
  38. 38.8.93 + 3.3 = ? (a) 12.13 (b) 12.33 (c) 9.26 (d) 12.23
  39. 39.What is the value of the digit 3 in 14.379? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  40. 40.6.71 + 3.3 = ? (a) 10.01 (b) 9.91 (c) 7.04 (d) 10.11

Answer key

  1. 0.008
  2. 10.72
  3. 14.09
  4. 0.016
  5. 0.004
  6. 80
  7. 3
  8. 13.94
  9. 0.56
  10. 7.81
  11. 8.22
  12. 30
  13. 0.01
  14. 10.19
  15. 6
  16. 7
  17. 0.007
  18. 0.08
  19. 0.24
  20. 0.61
  21. 0.052
  22. 0.069
  23. 0.03
  24. 40
  25. 3.94
  26. 0.53
  27. 0.3
  28. 0.8
  29. 0.6
  30. 0.07
  31. 0.005
  32. 80
  33. 1
  34. 0.1
  35. 0.08
  36. 13.01
  37. 0.81
  38. 12.23
  39. 0.3
  40. 10.01

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