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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 916 · 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 1 in 42.381? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  2. 2.4.12 + 5.7 = ? (a) 9.92 (b) 9.82 (c) 4.69 (d) 9.72
  3. 3.What is the value of the digit 3 in 43.589? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  4. 4.4.26 + 8.4 = ? (a) 5.1 (b) 12.66 (c) 12.56 (d) 12.76
  5. 5.What is the value of the digit 3 in 24.735? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  6. 6.Which is the greatest: 0.017, 0.794, 0.8, 0.83? (a) 0.017 (b) 0.794 (c) 0.8 (d) 0.83
  7. 7.5.63 + 5.9 = ? (a) 6.22 (b) 11.43 (c) 11.63 (d) 11.53
  8. 8.3.32 + 3.1 = ? (a) 6.32 (b) 3.63 (c) 6.52 (d) 6.42
  9. 9.7.87 + 3.2 = ? (a) 8.19 (b) 10.97 (c) 11.17 (d) 11.07
  10. 10.What is the value of the digit 8 in 83.615? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  11. 11.Which is the greatest: 0.586, 0.6, 0.61, 0.022? (a) 0.586 (b) 0.6 (c) 0.61 (d) 0.022
  12. 12.What is the value of the digit 1 in 45.176? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  13. 13.2.85 + 8.7 = ? (a) 11.65 (b) 11.45 (c) 3.72 (d) 11.55
  14. 14.5.84 + 2.4 = ? (a) 8.14 (b) 8.34 (c) 6.08 (d) 8.24
  15. 15.6.85 + 4.3 = ? (a) 7.28 (b) 11.05 (c) 11.15 (d) 11.25
  16. 16.1.89 + 6.9 = ? (a) 8.89 (b) 2.58 (c) 8.69 (d) 8.79
  17. 17.Which is the greatest: 0.63, 0.042, 0.6, 0.568? (a) 0.63 (b) 0.042 (c) 0.6 (d) 0.568
  18. 18.5.02 + 3.9 = ? (a) 5.41 (b) 8.82 (c) 8.92 (d) 9.02
  19. 19.Which is the greatest: 0.428, 0.5, 0.53, 0.057? (a) 0.428 (b) 0.5 (c) 0.53 (d) 0.057
  20. 20.Which is the greatest: 0.026, 0.153, 0.24, 0.2? (a) 0.026 (b) 0.153 (c) 0.24 (d) 0.2
  21. 21.5.71 + 4.5 = ? (a) 6.16 (b) 10.31 (c) 10.21 (d) 10.11
  22. 22.What is the value of the digit 3 in 69.324? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  23. 23.Which is the smallest: 0.6, 0.093, 0.519, 0.66? (a) 0.6 (b) 0.093 (c) 0.519 (d) 0.66
  24. 24.Which is the smallest: 0.723, 0.8, 0.83, 0.064? (a) 0.723 (b) 0.8 (c) 0.83 (d) 0.064
  25. 25.What is the value of the digit 3 in 83.295? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  26. 26.What is the value of the digit 1 in 98.145? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  27. 27.Which is the smallest: 0.3, 0.33, 0.281, 0.095? (a) 0.3 (b) 0.33 (c) 0.281 (d) 0.095
  28. 28.8.99 + 5.5 = ? (a) 14.49 (b) 14.59 (c) 14.39 (d) 9.54
  29. 29.What is the value of the digit 4 in 43.567? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  30. 30.What is the value of the digit 4 in 92.418? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  31. 31.5.65 + 1.4 = ? (a) 7.05 (b) 6.95 (c) 5.79 (d) 7.15
  32. 32.Which is the greatest: 0.77, 0.043, 0.7, 0.616? (a) 0.77 (b) 0.043 (c) 0.7 (d) 0.616
  33. 33.2.48 + 9.6 = ? (a) 12.18 (b) 3.44 (c) 12.08 (d) 11.98
  34. 34.What is the value of the digit 1 in 93.814? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  35. 35.What is the value of the digit 9 in 52.194? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  36. 36.What is the value of the digit 7 in 67.345? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  37. 37.Which is the greatest: 0.493, 0.5, 0.57, 0.062? (a) 0.493 (b) 0.5 (c) 0.57 (d) 0.062
  38. 38.Which is the smallest: 0.73, 0.073, 0.641, 0.7? (a) 0.73 (b) 0.073 (c) 0.641 (d) 0.7
  39. 39.Which is the smallest: 0.64, 0.571, 0.6, 0.025? (a) 0.64 (b) 0.571 (c) 0.6 (d) 0.025
  40. 40.Which is the greatest: 0.114, 0.22, 0.024, 0.2? (a) 0.114 (b) 0.22 (c) 0.024 (d) 0.2

Answer key

  1. 0.001
  2. 9.82
  3. 3
  4. 12.66
  5. 0.03
  6. 0.83
  7. 11.53
  8. 6.42
  9. 11.07
  10. 80
  11. 0.61
  12. 0.1
  13. 11.55
  14. 8.24
  15. 11.15
  16. 8.79
  17. 0.63
  18. 8.92
  19. 0.53
  20. 0.24
  21. 10.21
  22. 0.3
  23. 0.093
  24. 0.064
  25. 3
  26. 0.1
  27. 0.095
  28. 14.49
  29. 40
  30. 0.4
  31. 7.05
  32. 0.77
  33. 12.08
  34. 0.01
  35. 0.09
  36. 7
  37. 0.57
  38. 0.073
  39. 0.025
  40. 0.22

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