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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 369 · 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 5 in 41.395? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  2. 2.Which is the greatest: 0.191, 0.079, 0.28, 0.2? (a) 0.191 (b) 0.079 (c) 0.28 (d) 0.2
  3. 3.4.11 + 8.1 = ? (a) 12.11 (b) 12.21 (c) 4.92 (d) 12.31
  4. 4.5.84 + 8.2 = ? (a) 14.14 (b) 6.66 (c) 13.94 (d) 14.04
  5. 5.5.24 + 6.3 = ? (a) 11.64 (b) 11.44 (c) 11.54 (d) 5.87
  6. 6.9.65 + 2.2 = ? (a) 9.87 (b) 11.85 (c) 11.75 (d) 11.95
  7. 7.What is the value of the digit 6 in 67.489? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  8. 8.What is the value of the digit 1 in 43.721? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  9. 9.Which is the smallest: 0.062, 0.4, 0.41, 0.393? (a) 0.062 (b) 0.4 (c) 0.41 (d) 0.393
  10. 10.3.41 + 7.1 = ? (a) 10.41 (b) 4.12 (c) 10.61 (d) 10.51
  11. 11.2.68 + 5.1 = ? (a) 7.78 (b) 7.68 (c) 7.88 (d) 3.19
  12. 12.What is the value of the digit 6 in 67.518? (a) 60 (b) 0.6 (c) 6 (d) 0.06
  13. 13.Which is the greatest: 0.22, 0.2, 0.091, 0.139? (a) 0.22 (b) 0.2 (c) 0.091 (d) 0.139
  14. 14.What is the value of the digit 9 in 31.659? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  15. 15.1.06 + 8.7 = ? (a) 9.86 (b) 9.76 (c) 9.66 (d) 1.93
  16. 16.Which is the smallest: 0.21, 0.191, 0.2, 0.012? (a) 0.21 (b) 0.191 (c) 0.2 (d) 0.012
  17. 17.What is the value of the digit 1 in 54.172? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  18. 18.Which is the greatest: 0.784, 0.8, 0.012, 0.82? (a) 0.784 (b) 0.8 (c) 0.012 (d) 0.82
  19. 19.2.85 + 7.6 = ? (a) 10.45 (b) 3.61 (c) 10.55 (d) 10.35
  20. 20.Which is the greatest: 0.48, 0.4, 0.398, 0.026? (a) 0.48 (b) 0.4 (c) 0.398 (d) 0.026
  21. 21.What is the value of the digit 2 in 92.364? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  22. 22.8.28 + 5.3 = ? (a) 13.48 (b) 13.58 (c) 8.81 (d) 13.68
  23. 23.Which is the smallest: 0.168, 0.086, 0.25, 0.2? (a) 0.168 (b) 0.086 (c) 0.25 (d) 0.2
  24. 24.What is the value of the digit 3 in 29.376? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  25. 25.What is the value of the digit 9 in 91.824? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  26. 26.3.53 + 4.1 = ? (a) 3.94 (b) 7.53 (c) 7.73 (d) 7.63
  27. 27.5.38 + 5.9 = ? (a) 11.28 (b) 11.18 (c) 11.38 (d) 5.97
  28. 28.Which is the smallest: 0.5, 0.022, 0.59, 0.465? (a) 0.5 (b) 0.022 (c) 0.59 (d) 0.465
  29. 29.8.16 + 9.9 = ? (a) 18.16 (b) 9.15 (c) 17.96 (d) 18.06
  30. 30.What is the value of the digit 3 in 71.493? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  31. 31.8.15 + 4.5 = ? (a) 8.6 (b) 12.55 (c) 12.75 (d) 12.65
  32. 32.4.72 + 1.4 = ? (a) 6.02 (b) 6.22 (c) 4.86 (d) 6.12
  33. 33.What is the value of the digit 1 in 72.841? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  34. 34.What is the value of the digit 8 in 54.268? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  35. 35.5.21 + 1.9 = ? (a) 7.01 (b) 7.21 (c) 7.11 (d) 5.4
  36. 36.What is the value of the digit 3 in 53.264? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  37. 37.Which is the greatest: 0.7, 0.616, 0.071, 0.74? (a) 0.7 (b) 0.616 (c) 0.071 (d) 0.74
  38. 38.Which is the smallest: 0.8, 0.052, 0.86, 0.743? (a) 0.8 (b) 0.052 (c) 0.86 (d) 0.743
  39. 39.What is the value of the digit 3 in 87.413? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  40. 40.Which is the smallest: 0.382, 0.032, 0.41, 0.4? (a) 0.382 (b) 0.032 (c) 0.41 (d) 0.4

Answer key

  1. 0.005
  2. 0.28
  3. 12.21
  4. 14.04
  5. 11.54
  6. 11.85
  7. 60
  8. 0.001
  9. 0.062
  10. 10.51
  11. 7.78
  12. 60
  13. 0.22
  14. 0.009
  15. 9.76
  16. 0.012
  17. 0.1
  18. 0.82
  19. 10.45
  20. 0.48
  21. 2
  22. 13.58
  23. 0.086
  24. 0.3
  25. 90
  26. 7.63
  27. 11.28
  28. 0.022
  29. 18.06
  30. 0.003
  31. 12.65
  32. 6.12
  33. 0.001
  34. 0.008
  35. 7.11
  36. 3
  37. 0.74
  38. 0.052
  39. 0.003
  40. 0.032

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