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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 824 · 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. 1.2.64 + 2.7 = ? (a) 5.44 (b) 5.34 (c) 5.24 (d) 2.91
  2. 2.What is the value of the digit 8 in 74.218? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  3. 3.What is the value of the digit 2 in 32.789? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  4. 4.What is the value of the digit 1 in 16.897? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  5. 5.What is the value of the digit 1 in 85.413? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  6. 6.What is the value of the digit 5 in 59.846? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  7. 7.What is the value of the digit 7 in 78.591? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  8. 8.Which is the smallest: 0.71, 0.7, 0.617, 0.097? (a) 0.71 (b) 0.7 (c) 0.617 (d) 0.097
  9. 9.6.84 + 8.5 = ? (a) 15.24 (b) 15.34 (c) 15.44 (d) 7.69
  10. 10.Which is the smallest: 0.484, 0.51, 0.053, 0.5? (a) 0.484 (b) 0.51 (c) 0.053 (d) 0.5
  11. 11.What is the value of the digit 9 in 42.593? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  12. 12.What is the value of the digit 2 in 23.147? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  13. 13.Which is the greatest: 0.24, 0.2, 0.195, 0.035? (a) 0.24 (b) 0.2 (c) 0.195 (d) 0.035
  14. 14.What is the value of the digit 7 in 79.168? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  15. 15.What is the value of the digit 5 in 42.561? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  16. 16.Which is the smallest: 0.014, 0.295, 0.33, 0.3? (a) 0.014 (b) 0.295 (c) 0.33 (d) 0.3
  17. 17.What is the value of the digit 5 in 96.375? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  18. 18.Which is the greatest: 0.2, 0.152, 0.21, 0.036? (a) 0.2 (b) 0.152 (c) 0.21 (d) 0.036
  19. 19.Which is the greatest: 0.042, 0.23, 0.2, 0.174? (a) 0.042 (b) 0.23 (c) 0.2 (d) 0.174
  20. 20.4.18 + 5.5 = ? (a) 9.58 (b) 9.78 (c) 9.68 (d) 4.73
  21. 21.Which is the greatest: 0.643, 0.73, 0.086, 0.7? (a) 0.643 (b) 0.73 (c) 0.086 (d) 0.7
  22. 22.Which is the greatest: 0.26, 0.111, 0.2, 0.086? (a) 0.26 (b) 0.111 (c) 0.2 (d) 0.086
  23. 23.What is the value of the digit 5 in 43.578? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  24. 24.2.17 + 8.3 = ? (a) 10.37 (b) 10.57 (c) 3 (d) 10.47
  25. 25.What is the value of the digit 1 in 19.682? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  26. 26.Which is the smallest: 0.84, 0.094, 0.774, 0.8? (a) 0.84 (b) 0.094 (c) 0.774 (d) 0.8
  27. 27.Which is the greatest: 0.31, 0.234, 0.3, 0.027? (a) 0.31 (b) 0.234 (c) 0.3 (d) 0.027
  28. 28.What is the value of the digit 6 in 54.963? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  29. 29.What is the value of the digit 6 in 67.825? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  30. 30.What is the value of the digit 7 in 34.527? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  31. 31.4.18 + 4.1 = ? (a) 4.59 (b) 8.38 (c) 8.28 (d) 8.18
  32. 32.What is the value of the digit 6 in 13.647? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  33. 33.Which is the smallest: 0.231, 0.3, 0.082, 0.31? (a) 0.231 (b) 0.3 (c) 0.082 (d) 0.31
  34. 34.9.95 + 2.1 = ? (a) 12.15 (b) 11.95 (c) 10.16 (d) 12.05
  35. 35.9.54 + 8.5 = ? (a) 10.39 (b) 18.14 (c) 18.04 (d) 17.94
  36. 36.Which is the smallest: 0.087, 0.48, 0.325, 0.4? (a) 0.087 (b) 0.48 (c) 0.325 (d) 0.4
  37. 37.9.56 + 7.1 = ? (a) 16.76 (b) 16.66 (c) 10.27 (d) 16.56
  38. 38.3.89 + 6.9 = ? (a) 10.69 (b) 10.79 (c) 4.58 (d) 10.89
  39. 39.What is the value of the digit 6 in 54.679? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  40. 40.Which is the greatest: 0.243, 0.071, 0.37, 0.3? (a) 0.243 (b) 0.071 (c) 0.37 (d) 0.3

Answer key

  1. 5.34
  2. 0.008
  3. 2
  4. 10
  5. 0.01
  6. 50
  7. 70
  8. 0.097
  9. 15.34
  10. 0.053
  11. 0.09
  12. 20
  13. 0.24
  14. 70
  15. 0.5
  16. 0.014
  17. 0.005
  18. 0.21
  19. 0.23
  20. 9.68
  21. 0.73
  22. 0.26
  23. 0.5
  24. 10.47
  25. 10
  26. 0.094
  27. 0.31
  28. 0.06
  29. 60
  30. 0.007
  31. 8.28
  32. 0.6
  33. 0.082
  34. 12.05
  35. 18.04
  36. 0.087
  37. 16.66
  38. 10.79
  39. 0.6
  40. 0.37

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