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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 882 · 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 18.574? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  2. 2.Which is the greatest: 0.65, 0.6, 0.538, 0.059? (a) 0.65 (b) 0.6 (c) 0.538 (d) 0.059
  3. 3.Which is the smallest: 0.7, 0.025, 0.614, 0.72? (a) 0.7 (b) 0.025 (c) 0.614 (d) 0.72
  4. 4.4.97 + 6.6 = ? (a) 5.63 (b) 11.57 (c) 11.67 (d) 11.47
  5. 5.5.76 + 2.6 = ? (a) 8.46 (b) 8.26 (c) 6.02 (d) 8.36
  6. 6.3.62 + 5.1 = ? (a) 4.13 (b) 8.62 (c) 8.72 (d) 8.82
  7. 7.9.93 + 1.5 = ? (a) 11.53 (b) 11.43 (c) 10.08 (d) 11.33
  8. 8.Which is the greatest: 0.55, 0.019, 0.442, 0.5? (a) 0.55 (b) 0.019 (c) 0.442 (d) 0.5
  9. 9.Which is the smallest: 0.44, 0.047, 0.361, 0.4? (a) 0.44 (b) 0.047 (c) 0.361 (d) 0.4
  10. 10.Which is the greatest: 0.2, 0.24, 0.153, 0.017? (a) 0.2 (b) 0.24 (c) 0.153 (d) 0.017
  11. 11.4.99 + 3.1 = ? (a) 5.3 (b) 8.19 (c) 7.99 (d) 8.09
  12. 12.Which is the smallest: 0.055, 0.78, 0.7, 0.637? (a) 0.055 (b) 0.78 (c) 0.7 (d) 0.637
  13. 13.Which is the greatest: 0.71, 0.617, 0.072, 0.7? (a) 0.71 (b) 0.617 (c) 0.072 (d) 0.7
  14. 14.What is the value of the digit 6 in 68.579? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  15. 15.What is the value of the digit 2 in 68.247? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  16. 16.8.87 + 2.7 = ? (a) 11.67 (b) 11.47 (c) 11.57 (d) 9.14
  17. 17.Which is the greatest: 0.3, 0.36, 0.212, 0.063? (a) 0.3 (b) 0.36 (c) 0.212 (d) 0.063
  18. 18.Which is the smallest: 0.639, 0.71, 0.7, 0.051? (a) 0.639 (b) 0.71 (c) 0.7 (d) 0.051
  19. 19.What is the value of the digit 6 in 42.916? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  20. 20.Which is the greatest: 0.46, 0.383, 0.071, 0.4? (a) 0.46 (b) 0.383 (c) 0.071 (d) 0.4
  21. 21.9.76 + 6.1 = ? (a) 10.37 (b) 15.76 (c) 15.86 (d) 15.96
  22. 22.What is the value of the digit 9 in 23.698? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  23. 23.Which is the greatest: 0.3, 0.282, 0.32, 0.099? (a) 0.3 (b) 0.282 (c) 0.32 (d) 0.099
  24. 24.9.62 + 7.8 = ? (a) 17.42 (b) 17.52 (c) 10.4 (d) 17.32
  25. 25.Which is the smallest: 0.21, 0.084, 0.182, 0.2? (a) 0.21 (b) 0.084 (c) 0.182 (d) 0.2
  26. 26.What is the value of the digit 8 in 56.894? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  27. 27.Which is the smallest: 0.061, 0.515, 0.6, 0.66? (a) 0.061 (b) 0.515 (c) 0.6 (d) 0.66
  28. 28.2.01 + 9.2 = ? (a) 2.93 (b) 11.31 (c) 11.11 (d) 11.21
  29. 29.7.09 + 9.1 = ? (a) 8 (b) 16.29 (c) 16.19 (d) 16.09
  30. 30.2.77 + 5.2 = ? (a) 7.87 (b) 3.29 (c) 7.97 (d) 8.07
  31. 31.9.62 + 8.6 = ? (a) 18.32 (b) 18.12 (c) 10.48 (d) 18.22
  32. 32.6.21 + 9.7 = ? (a) 7.18 (b) 16.01 (c) 15.81 (d) 15.91
  33. 33.Which is the greatest: 0.5, 0.499, 0.043, 0.58? (a) 0.5 (b) 0.499 (c) 0.043 (d) 0.58
  34. 34.8.41 + 5.6 = ? (a) 8.97 (b) 13.91 (c) 14.11 (d) 14.01
  35. 35.Which is the greatest: 0.63, 0.061, 0.6, 0.526? (a) 0.63 (b) 0.061 (c) 0.6 (d) 0.526
  36. 36.Which is the greatest: 0.183, 0.011, 0.23, 0.2? (a) 0.183 (b) 0.011 (c) 0.23 (d) 0.2
  37. 37.8.15 + 8.9 = ? (a) 9.04 (b) 17.15 (c) 16.95 (d) 17.05
  38. 38.Which is the smallest: 0.726, 0.81, 0.8, 0.069? (a) 0.726 (b) 0.81 (c) 0.8 (d) 0.069
  39. 39.What is the value of the digit 1 in 23.615? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  40. 40.Which is the greatest: 0.48, 0.4, 0.345, 0.044? (a) 0.48 (b) 0.4 (c) 0.345 (d) 0.044

Answer key

  1. 0.5
  2. 0.65
  3. 0.025
  4. 11.57
  5. 8.36
  6. 8.72
  7. 11.43
  8. 0.55
  9. 0.047
  10. 0.24
  11. 8.09
  12. 0.055
  13. 0.71
  14. 60
  15. 0.2
  16. 11.57
  17. 0.36
  18. 0.051
  19. 0.006
  20. 0.46
  21. 15.86
  22. 0.09
  23. 0.32
  24. 17.42
  25. 0.084
  26. 0.8
  27. 0.061
  28. 11.21
  29. 16.19
  30. 7.97
  31. 18.22
  32. 15.91
  33. 0.58
  34. 14.01
  35. 0.63
  36. 0.23
  37. 17.05
  38. 0.069
  39. 0.01
  40. 0.48

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