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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 948 · 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 28.147? (a) 0.8 (b) 0.08 (c) 80 (d) 8
  2. 2.1.65 + 9.4 = ? (a) 10.95 (b) 2.59 (c) 11.15 (d) 11.05
  3. 3.What is the value of the digit 5 in 26.549? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  4. 4.What is the value of the digit 1 in 41.528? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  5. 5.2.68 + 1.5 = ? (a) 4.08 (b) 4.18 (c) 2.83 (d) 4.28
  6. 6.What is the value of the digit 1 in 21.534? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  7. 7.4.11 + 6.2 = ? (a) 4.73 (b) 10.21 (c) 10.31 (d) 10.41
  8. 8.4.46 + 4.5 = ? (a) 4.91 (b) 8.86 (c) 8.96 (d) 9.06
  9. 9.What is the value of the digit 5 in 53.167? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  10. 10.What is the value of the digit 4 in 24.168? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  11. 11.Which is the greatest: 0.71, 0.042, 0.7, 0.691? (a) 0.71 (b) 0.042 (c) 0.7 (d) 0.691
  12. 12.2.67 + 8.5 = ? (a) 11.27 (b) 11.07 (c) 3.52 (d) 11.17
  13. 13.2.06 + 8.2 = ? (a) 10.36 (b) 10.26 (c) 2.88 (d) 10.16
  14. 14.Which is the greatest: 0.722, 0.88, 0.086, 0.8? (a) 0.722 (b) 0.88 (c) 0.086 (d) 0.8
  15. 15.1.54 + 3.1 = ? (a) 4.74 (b) 4.64 (c) 1.85 (d) 4.54
  16. 16.5.01 + 2.7 = ? (a) 7.71 (b) 7.61 (c) 5.28 (d) 7.81
  17. 17.5.74 + 6.1 = ? (a) 6.35 (b) 11.84 (c) 11.74 (d) 11.94
  18. 18.8.88 + 2.4 = ? (a) 11.38 (b) 11.18 (c) 11.28 (d) 9.12
  19. 19.Which is the greatest: 0.3, 0.211, 0.099, 0.39? (a) 0.3 (b) 0.211 (c) 0.099 (d) 0.39
  20. 20.What is the value of the digit 7 in 21.379? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  21. 21.What is the value of the digit 9 in 91.862? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  22. 22.What is the value of the digit 5 in 72.156? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  23. 23.2.58 + 9.2 = ? (a) 11.88 (b) 3.5 (c) 11.68 (d) 11.78
  24. 24.Which is the smallest: 0.013, 0.644, 0.7, 0.74? (a) 0.013 (b) 0.644 (c) 0.7 (d) 0.74
  25. 25.Which is the greatest: 0.054, 0.258, 0.32, 0.3? (a) 0.054 (b) 0.258 (c) 0.32 (d) 0.3
  26. 26.6.06 + 9.8 = ? (a) 15.76 (b) 7.04 (c) 15.86 (d) 15.96
  27. 27.9.28 + 3.4 = ? (a) 12.58 (b) 12.78 (c) 12.68 (d) 9.62
  28. 28.What is the value of the digit 2 in 24.963? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  29. 29.1.71 + 8.8 = ? (a) 10.41 (b) 2.59 (c) 10.51 (d) 10.61
  30. 30.Which is the smallest: 0.44, 0.084, 0.4, 0.338? (a) 0.44 (b) 0.084 (c) 0.4 (d) 0.338
  31. 31.6.66 + 2.7 = ? (a) 6.93 (b) 9.26 (c) 9.46 (d) 9.36
  32. 32.3.83 + 2.3 = ? (a) 6.23 (b) 4.06 (c) 6.03 (d) 6.13
  33. 33.What is the value of the digit 6 in 67.852? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  34. 34.Which is the smallest: 0.24, 0.2, 0.111, 0.021? (a) 0.24 (b) 0.2 (c) 0.111 (d) 0.021
  35. 35.What is the value of the digit 1 in 21.496? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  36. 36.What is the value of the digit 6 in 14.657? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  37. 37.What is the value of the digit 5 in 53.921? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  38. 38.What is the value of the digit 3 in 32.874? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  39. 39.6.75 + 3.1 = ? (a) 7.06 (b) 9.95 (c) 9.75 (d) 9.85
  40. 40.Which is the smallest: 0.064, 0.174, 0.2, 0.29? (a) 0.064 (b) 0.174 (c) 0.2 (d) 0.29

Answer key

  1. 8
  2. 11.05
  3. 0.5
  4. 1
  5. 4.18
  6. 1
  7. 10.31
  8. 8.96
  9. 50
  10. 4
  11. 0.71
  12. 11.17
  13. 10.26
  14. 0.88
  15. 4.64
  16. 7.71
  17. 11.84
  18. 11.28
  19. 0.39
  20. 0.07
  21. 90
  22. 0.05
  23. 11.78
  24. 0.013
  25. 0.32
  26. 15.86
  27. 12.68
  28. 20
  29. 10.51
  30. 0.084
  31. 9.36
  32. 6.13
  33. 60
  34. 0.021
  35. 1
  36. 0.6
  37. 50
  38. 30
  39. 9.85
  40. 0.064

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