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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 418 · 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 4 in 54.316? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  2. 2.Which is the smallest: 0.7, 0.631, 0.046, 0.76? (a) 0.7 (b) 0.631 (c) 0.046 (d) 0.76
  3. 3.Which is the smallest: 0.645, 0.77, 0.029, 0.7? (a) 0.645 (b) 0.77 (c) 0.029 (d) 0.7
  4. 4.5.29 + 3.1 = ? (a) 8.49 (b) 5.6 (c) 8.39 (d) 8.29
  5. 5.2.75 + 7.5 = ? (a) 10.25 (b) 10.15 (c) 3.5 (d) 10.35
  6. 6.Which is the greatest: 0.64, 0.541, 0.024, 0.6? (a) 0.64 (b) 0.541 (c) 0.024 (d) 0.6
  7. 7.What is the value of the digit 4 in 39.254? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  8. 8.Which is the smallest: 0.452, 0.53, 0.013, 0.5? (a) 0.452 (b) 0.53 (c) 0.013 (d) 0.5
  9. 9.Which is the greatest: 0.44, 0.4, 0.043, 0.355? (a) 0.44 (b) 0.4 (c) 0.043 (d) 0.355
  10. 10.4.54 + 2.7 = ? (a) 7.14 (b) 4.81 (c) 7.34 (d) 7.24
  11. 11.What is the value of the digit 8 in 81.652? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  12. 12.2.86 + 4.7 = ? (a) 3.33 (b) 7.66 (c) 7.46 (d) 7.56
  13. 13.Which is the greatest: 0.51, 0.5, 0.093, 0.479? (a) 0.51 (b) 0.5 (c) 0.093 (d) 0.479
  14. 14.Which is the smallest: 0.5, 0.448, 0.077, 0.54? (a) 0.5 (b) 0.448 (c) 0.077 (d) 0.54
  15. 15.6.18 + 4.6 = ? (a) 10.88 (b) 10.78 (c) 10.68 (d) 6.64
  16. 16.Which is the greatest: 0.42, 0.069, 0.377, 0.4? (a) 0.42 (b) 0.069 (c) 0.377 (d) 0.4
  17. 17.Which is the greatest: 0.027, 0.52, 0.5, 0.446? (a) 0.027 (b) 0.52 (c) 0.5 (d) 0.446
  18. 18.Which is the greatest: 0.471, 0.027, 0.56, 0.5? (a) 0.471 (b) 0.027 (c) 0.56 (d) 0.5
  19. 19.What is the value of the digit 3 in 36.297? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  20. 20.6.81 + 6.2 = ? (a) 12.91 (b) 13.11 (c) 7.43 (d) 13.01
  21. 21.What is the value of the digit 4 in 56.142? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  22. 22.8.01 + 6.5 = ? (a) 8.66 (b) 14.61 (c) 14.51 (d) 14.41
  23. 23.1.66 + 3.2 = ? (a) 1.98 (b) 4.96 (c) 4.86 (d) 4.76
  24. 24.Which is the greatest: 0.3, 0.014, 0.37, 0.262? (a) 0.3 (b) 0.014 (c) 0.37 (d) 0.262
  25. 25.What is the value of the digit 5 in 65.398? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  26. 26.What is the value of the digit 4 in 12.647? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  27. 27.What is the value of the digit 9 in 62.159? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  28. 28.6.16 + 9.3 = ? (a) 15.46 (b) 15.56 (c) 15.36 (d) 7.09
  29. 29.Which is the greatest: 0.61, 0.6, 0.044, 0.532? (a) 0.61 (b) 0.6 (c) 0.044 (d) 0.532
  30. 30.3.28 + 3.6 = ? (a) 6.78 (b) 6.88 (c) 3.64 (d) 6.98
  31. 31.9.04 + 3.5 = ? (a) 12.54 (b) 12.64 (c) 12.44 (d) 9.39
  32. 32.Which is the smallest: 0.053, 0.2, 0.172, 0.27? (a) 0.053 (b) 0.2 (c) 0.172 (d) 0.27
  33. 33.What is the value of the digit 4 in 45.316? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  34. 34.5.12 + 6.9 = ? (a) 11.92 (b) 12.02 (c) 5.81 (d) 12.12
  35. 35.What is the value of the digit 4 in 15.468? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  36. 36.What is the value of the digit 8 in 12.387? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  37. 37.Which is the smallest: 0.43, 0.066, 0.352, 0.4? (a) 0.43 (b) 0.066 (c) 0.352 (d) 0.4
  38. 38.5.14 + 7.4 = ? (a) 12.54 (b) 12.64 (c) 12.44 (d) 5.88
  39. 39.What is the value of the digit 5 in 98.651? (a) 5 (b) 0.005 (c) 0.05 (d) 0.5
  40. 40.Which is the greatest: 0.453, 0.51, 0.5, 0.039? (a) 0.453 (b) 0.51 (c) 0.5 (d) 0.039

Answer key

  1. 4
  2. 0.046
  3. 0.029
  4. 8.39
  5. 10.25
  6. 0.64
  7. 0.004
  8. 0.013
  9. 0.44
  10. 7.24
  11. 80
  12. 7.56
  13. 0.51
  14. 0.077
  15. 10.78
  16. 0.42
  17. 0.52
  18. 0.56
  19. 30
  20. 13.01
  21. 0.04
  22. 14.51
  23. 4.86
  24. 0.37
  25. 5
  26. 0.04
  27. 0.009
  28. 15.46
  29. 0.61
  30. 6.88
  31. 12.54
  32. 0.053
  33. 40
  34. 12.02
  35. 0.4
  36. 0.08
  37. 0.066
  38. 12.54
  39. 0.05
  40. 0.51

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