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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 930 · 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 6 in 26.794? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  2. 2.What is the value of the digit 7 in 73.841? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  3. 3.3.72 + 9.2 = ? (a) 13.02 (b) 12.82 (c) 4.64 (d) 12.92
  4. 4.What is the value of the digit 5 in 53.718? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  5. 5.What is the value of the digit 3 in 39.678? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  6. 6.What is the value of the digit 3 in 37.982? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  7. 7.What is the value of the digit 6 in 61.274? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  8. 8.Which is the greatest: 0.229, 0.39, 0.3, 0.033? (a) 0.229 (b) 0.39 (c) 0.3 (d) 0.033
  9. 9.Which is the smallest: 0.071, 0.7, 0.73, 0.627? (a) 0.071 (b) 0.7 (c) 0.73 (d) 0.627
  10. 10.Which is the smallest: 0.51, 0.078, 0.492, 0.5? (a) 0.51 (b) 0.078 (c) 0.492 (d) 0.5
  11. 11.Which is the greatest: 0.074, 0.561, 0.6, 0.69? (a) 0.074 (b) 0.561 (c) 0.6 (d) 0.69
  12. 12.What is the value of the digit 2 in 28.641? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  13. 13.Which is the smallest: 0.655, 0.72, 0.7, 0.015? (a) 0.655 (b) 0.72 (c) 0.7 (d) 0.015
  14. 14.Which is the smallest: 0.092, 0.2, 0.24, 0.131? (a) 0.092 (b) 0.2 (c) 0.24 (d) 0.131
  15. 15.4.05 + 4.9 = ? (a) 4.54 (b) 9.05 (c) 8.95 (d) 8.85
  16. 16.What is the value of the digit 2 in 32.869? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  17. 17.9.33 + 3.2 = ? (a) 12.53 (b) 12.43 (c) 9.65 (d) 12.63
  18. 18.5.36 + 1.9 = ? (a) 5.55 (b) 7.36 (c) 7.16 (d) 7.26
  19. 19.Which is the greatest: 0.023, 0.38, 0.3, 0.219? (a) 0.023 (b) 0.38 (c) 0.3 (d) 0.219
  20. 20.1.78 + 9.3 = ? (a) 11.08 (b) 11.18 (c) 2.71 (d) 10.98
  21. 21.6.34 + 7.9 = ? (a) 14.24 (b) 7.13 (c) 14.34 (d) 14.14
  22. 22.3.81 + 4.6 = ? (a) 8.31 (b) 4.27 (c) 8.41 (d) 8.51
  23. 23.4.99 + 4.1 = ? (a) 5.4 (b) 8.99 (c) 9.09 (d) 9.19
  24. 24.9.44 + 4.9 = ? (a) 9.93 (b) 14.44 (c) 14.34 (d) 14.24
  25. 25.Which is the greatest: 0.72, 0.671, 0.022, 0.7? (a) 0.72 (b) 0.671 (c) 0.022 (d) 0.7
  26. 26.5.45 + 5.5 = ? (a) 10.85 (b) 11.05 (c) 10.95 (d) 6
  27. 27.What is the value of the digit 5 in 72.654? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  28. 28.Which is the greatest: 0.041, 0.56, 0.5, 0.451? (a) 0.041 (b) 0.56 (c) 0.5 (d) 0.451
  29. 29.Which is the greatest: 0.037, 0.4, 0.43, 0.392? (a) 0.037 (b) 0.4 (c) 0.43 (d) 0.392
  30. 30.5.58 + 3.2 = ? (a) 8.88 (b) 8.68 (c) 8.78 (d) 5.9
  31. 31.Which is the smallest: 0.529, 0.028, 0.6, 0.68? (a) 0.529 (b) 0.028 (c) 0.6 (d) 0.68
  32. 32.4.83 + 8.7 = ? (a) 13.43 (b) 13.53 (c) 13.63 (d) 5.7
  33. 33.Which is the smallest: 0.118, 0.019, 0.26, 0.2? (a) 0.118 (b) 0.019 (c) 0.26 (d) 0.2
  34. 34.4.23 + 9.3 = ? (a) 13.43 (b) 5.16 (c) 13.63 (d) 13.53
  35. 35.6.71 + 2.1 = ? (a) 8.91 (b) 6.92 (c) 8.71 (d) 8.81
  36. 36.Which is the smallest: 0.036, 0.38, 0.3, 0.255? (a) 0.036 (b) 0.38 (c) 0.3 (d) 0.255
  37. 37.Which is the smallest: 0.82, 0.753, 0.026, 0.8? (a) 0.82 (b) 0.753 (c) 0.026 (d) 0.8
  38. 38.Which is the smallest: 0.6, 0.053, 0.61, 0.516? (a) 0.6 (b) 0.053 (c) 0.61 (d) 0.516
  39. 39.What is the value of the digit 5 in 31.952? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  40. 40.Which is the smallest: 0.22, 0.062, 0.123, 0.2? (a) 0.22 (b) 0.062 (c) 0.123 (d) 0.2

Answer key

  1. 6
  2. 70
  3. 12.92
  4. 50
  5. 30
  6. 30
  7. 60
  8. 0.39
  9. 0.071
  10. 0.078
  11. 0.69
  12. 20
  13. 0.015
  14. 0.092
  15. 8.95
  16. 2
  17. 12.53
  18. 7.26
  19. 0.38
  20. 11.08
  21. 14.24
  22. 8.41
  23. 9.09
  24. 14.34
  25. 0.72
  26. 10.95
  27. 0.05
  28. 0.56
  29. 0.43
  30. 8.78
  31. 0.028
  32. 13.53
  33. 0.019
  34. 13.53
  35. 8.81
  36. 0.036
  37. 0.026
  38. 0.053
  39. 0.05
  40. 0.062

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