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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 631 · 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 83.176? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  2. 2.What is the value of the digit 5 in 35.248? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  3. 3.Which is the smallest: 0.048, 0.8, 0.82, 0.786? (a) 0.048 (b) 0.8 (c) 0.82 (d) 0.786
  4. 4.What is the value of the digit 9 in 32.984? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  5. 5.What is the value of the digit 5 in 58.479? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  6. 6.What is the value of the digit 1 in 14.389? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  7. 7.1.02 + 9.9 = ? (a) 10.82 (b) 2.01 (c) 10.92 (d) 11.02
  8. 8.What is the value of the digit 8 in 28.751? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  9. 9.6.61 + 1.6 = ? (a) 8.11 (b) 6.77 (c) 8.31 (d) 8.21
  10. 10.5.37 + 3.5 = ? (a) 8.97 (b) 8.87 (c) 8.77 (d) 5.72
  11. 11.Which is the smallest: 0.62, 0.079, 0.6, 0.512? (a) 0.62 (b) 0.079 (c) 0.6 (d) 0.512
  12. 12.Which is the smallest: 0.57, 0.5, 0.471, 0.013? (a) 0.57 (b) 0.5 (c) 0.471 (d) 0.013
  13. 13.What is the value of the digit 7 in 71.924? (a) 70 (b) 0.07 (c) 7 (d) 0.7
  14. 14.Which is the greatest: 0.097, 0.3, 0.35, 0.256? (a) 0.097 (b) 0.3 (c) 0.35 (d) 0.256
  15. 15.4.11 + 1.3 = ? (a) 5.41 (b) 5.51 (c) 4.24 (d) 5.31
  16. 16.9.15 + 3.8 = ? (a) 12.95 (b) 9.53 (c) 12.85 (d) 13.05
  17. 17.Which is the smallest: 0.6, 0.565, 0.67, 0.082? (a) 0.6 (b) 0.565 (c) 0.67 (d) 0.082
  18. 18.Which is the greatest: 0.146, 0.23, 0.022, 0.2? (a) 0.146 (b) 0.23 (c) 0.022 (d) 0.2
  19. 19.What is the value of the digit 3 in 94.213? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  20. 20.7.96 + 8.9 = ? (a) 16.86 (b) 16.76 (c) 16.96 (d) 8.85
  21. 21.8.39 + 3.7 = ? (a) 12.19 (b) 11.99 (c) 12.09 (d) 8.76
  22. 22.What is the value of the digit 1 in 23.741? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  23. 23.8.11 + 3.6 = ? (a) 11.61 (b) 8.47 (c) 11.71 (d) 11.81
  24. 24.Which is the smallest: 0.155, 0.2, 0.22, 0.019? (a) 0.155 (b) 0.2 (c) 0.22 (d) 0.019
  25. 25.What is the value of the digit 4 in 15.348? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  26. 26.Which is the greatest: 0.58, 0.065, 0.414, 0.5? (a) 0.58 (b) 0.065 (c) 0.414 (d) 0.5
  27. 27.5.61 + 7.8 = ? (a) 13.31 (b) 6.39 (c) 13.41 (d) 13.51
  28. 28.Which is the greatest: 0.28, 0.2, 0.033, 0.147? (a) 0.28 (b) 0.2 (c) 0.033 (d) 0.147
  29. 29.2.13 + 1.4 = ? (a) 3.63 (b) 2.27 (c) 3.43 (d) 3.53
  30. 30.Which is the greatest: 0.64, 0.035, 0.527, 0.6? (a) 0.64 (b) 0.035 (c) 0.527 (d) 0.6
  31. 31.6.59 + 2.3 = ? (a) 6.82 (b) 8.79 (c) 8.89 (d) 8.99
  32. 32.9.57 + 8.9 = ? (a) 18.47 (b) 18.37 (c) 10.46 (d) 18.57
  33. 33.9.21 + 9.2 = ? (a) 18.41 (b) 18.31 (c) 18.51 (d) 10.13
  34. 34.Which is the smallest: 0.8, 0.025, 0.83, 0.723? (a) 0.8 (b) 0.025 (c) 0.83 (d) 0.723
  35. 35.Which is the smallest: 0.231, 0.39, 0.3, 0.028? (a) 0.231 (b) 0.39 (c) 0.3 (d) 0.028
  36. 36.Which is the smallest: 0.221, 0.34, 0.3, 0.075? (a) 0.221 (b) 0.34 (c) 0.3 (d) 0.075
  37. 37.What is the value of the digit 8 in 32.815? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  38. 38.What is the value of the digit 9 in 91.687? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  39. 39.What is the value of the digit 3 in 34.567? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  40. 40.What is the value of the digit 6 in 65.172? (a) 0.06 (b) 60 (c) 6 (d) 0.6

Answer key

  1. 80
  2. 5
  3. 0.048
  4. 0.9
  5. 50
  6. 10
  7. 10.92
  8. 8
  9. 8.21
  10. 8.87
  11. 0.079
  12. 0.013
  13. 70
  14. 0.35
  15. 5.41
  16. 12.95
  17. 0.082
  18. 0.23
  19. 0.003
  20. 16.86
  21. 12.09
  22. 0.001
  23. 11.71
  24. 0.019
  25. 0.04
  26. 0.58
  27. 13.41
  28. 0.28
  29. 3.53
  30. 0.64
  31. 8.89
  32. 18.47
  33. 18.41
  34. 0.025
  35. 0.028
  36. 0.075
  37. 0.8
  38. 90
  39. 30
  40. 60

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