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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 926 · 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.Which is the greatest: 0.575, 0.038, 0.6, 0.68? (a) 0.575 (b) 0.038 (c) 0.6 (d) 0.68
  2. 2.Which is the greatest: 0.2, 0.26, 0.084, 0.131? (a) 0.2 (b) 0.26 (c) 0.084 (d) 0.131
  3. 3.What is the value of the digit 6 in 68.432? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  4. 4.Which is the greatest: 0.2, 0.21, 0.052, 0.156? (a) 0.2 (b) 0.21 (c) 0.052 (d) 0.156
  5. 5.What is the value of the digit 3 in 39.287? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  6. 6.7.76 + 4.1 = ? (a) 8.17 (b) 11.86 (c) 11.96 (d) 11.76
  7. 7.4.52 + 4.4 = ? (a) 9.02 (b) 8.82 (c) 4.96 (d) 8.92
  8. 8.6.16 + 3.5 = ? (a) 9.76 (b) 6.51 (c) 9.56 (d) 9.66
  9. 9.What is the value of the digit 8 in 78.451? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  10. 10.Which is the greatest: 0.27, 0.018, 0.145, 0.2? (a) 0.27 (b) 0.018 (c) 0.145 (d) 0.2
  11. 11.1.99 + 6.4 = ? (a) 8.49 (b) 8.29 (c) 2.63 (d) 8.39
  12. 12.7.36 + 3.8 = ? (a) 11.26 (b) 11.06 (c) 7.74 (d) 11.16
  13. 13.Which is the smallest: 0.2, 0.044, 0.188, 0.23? (a) 0.2 (b) 0.044 (c) 0.188 (d) 0.23
  14. 14.What is the value of the digit 4 in 65.341? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  15. 15.Which is the smallest: 0.042, 0.4, 0.47, 0.367? (a) 0.042 (b) 0.4 (c) 0.47 (d) 0.367
  16. 16.6.55 + 6.1 = ? (a) 7.16 (b) 12.55 (c) 12.65 (d) 12.75
  17. 17.Which is the greatest: 0.7, 0.066, 0.72, 0.695? (a) 0.7 (b) 0.066 (c) 0.72 (d) 0.695
  18. 18.Which is the greatest: 0.064, 0.33, 0.289, 0.3? (a) 0.064 (b) 0.33 (c) 0.289 (d) 0.3
  19. 19.What is the value of the digit 7 in 63.947? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  20. 20.What is the value of the digit 2 in 43.172? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  21. 21.What is the value of the digit 7 in 96.723? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  22. 22.Which is the greatest: 0.339, 0.052, 0.43, 0.4? (a) 0.339 (b) 0.052 (c) 0.43 (d) 0.4
  23. 23.Which is the smallest: 0.093, 0.187, 0.2, 0.23? (a) 0.093 (b) 0.187 (c) 0.2 (d) 0.23
  24. 24.Which is the smallest: 0.526, 0.6, 0.052, 0.67? (a) 0.526 (b) 0.6 (c) 0.052 (d) 0.67
  25. 25.9.64 + 7.7 = ? (a) 10.41 (b) 17.34 (c) 17.44 (d) 17.24
  26. 26.7.52 + 8.7 = ? (a) 16.32 (b) 16.12 (c) 16.22 (d) 8.39
  27. 27.5.93 + 2.6 = ? (a) 8.53 (b) 8.63 (c) 6.19 (d) 8.43
  28. 28.What is the value of the digit 1 in 75.316? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  29. 29.7.41 + 8.1 = ? (a) 15.51 (b) 15.41 (c) 15.61 (d) 8.22
  30. 30.What is the value of the digit 1 in 19.562? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  31. 31.Which is the greatest: 0.048, 0.4, 0.49, 0.399? (a) 0.048 (b) 0.4 (c) 0.49 (d) 0.399
  32. 32.Which is the greatest: 0.077, 0.56, 0.467, 0.5? (a) 0.077 (b) 0.56 (c) 0.467 (d) 0.5
  33. 33.What is the value of the digit 1 in 81.345? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  34. 34.9.15 + 7.8 = ? (a) 17.05 (b) 16.95 (c) 9.93 (d) 16.85
  35. 35.8.72 + 7.1 = ? (a) 15.82 (b) 15.92 (c) 9.43 (d) 15.72
  36. 36.Which is the smallest: 0.667, 0.73, 0.7, 0.097? (a) 0.667 (b) 0.73 (c) 0.7 (d) 0.097
  37. 37.What is the value of the digit 8 in 58.619? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  38. 38.1.14 + 9.3 = ? (a) 2.07 (b) 10.54 (c) 10.34 (d) 10.44
  39. 39.3.07 + 1.2 = ? (a) 4.27 (b) 3.19 (c) 4.37 (d) 4.17
  40. 40.What is the value of the digit 1 in 32.871? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1

Answer key

  1. 0.68
  2. 0.26
  3. 60
  4. 0.21
  5. 30
  6. 11.86
  7. 8.92
  8. 9.66
  9. 8
  10. 0.27
  11. 8.39
  12. 11.16
  13. 0.044
  14. 0.04
  15. 0.042
  16. 12.65
  17. 0.72
  18. 0.33
  19. 0.007
  20. 0.002
  21. 0.7
  22. 0.43
  23. 0.093
  24. 0.052
  25. 17.34
  26. 16.22
  27. 8.53
  28. 0.01
  29. 15.51
  30. 10
  31. 0.49
  32. 0.56
  33. 1
  34. 16.95
  35. 15.82
  36. 0.097
  37. 8
  38. 10.44
  39. 4.27
  40. 0.001

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