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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 425 · 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 36.147? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  2. 2.6.74 + 3.6 = ? (a) 10.44 (b) 7.1 (c) 10.34 (d) 10.24
  3. 3.5.38 + 8.7 = ? (a) 13.98 (b) 14.18 (c) 14.08 (d) 6.25
  4. 4.What is the value of the digit 4 in 32.984? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  5. 5.8.32 + 9.1 = ? (a) 17.42 (b) 9.23 (c) 17.52 (d) 17.32
  6. 6.What is the value of the digit 7 in 71.389? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  7. 7.Which is the smallest: 0.8, 0.017, 0.88, 0.797? (a) 0.8 (b) 0.017 (c) 0.88 (d) 0.797
  8. 8.What is the value of the digit 8 in 86.243? (a) 8 (b) 0.8 (c) 80 (d) 0.08
  9. 9.What is the value of the digit 5 in 62.153? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  10. 10.7.75 + 3.2 = ? (a) 8.07 (b) 11.05 (c) 10.85 (d) 10.95
  11. 11.3.36 + 3.6 = ? (a) 7.06 (b) 6.96 (c) 3.72 (d) 6.86
  12. 12.2.97 + 7.9 = ? (a) 10.87 (b) 10.77 (c) 3.76 (d) 10.97
  13. 13.What is the value of the digit 6 in 17.956? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  14. 14.What is the value of the digit 3 in 83.419? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  15. 15.6.61 + 1.4 = ? (a) 8.01 (b) 6.75 (c) 7.91 (d) 8.11
  16. 16.7.68 + 2.9 = ? (a) 10.68 (b) 10.58 (c) 7.97 (d) 10.48
  17. 17.Which is the greatest: 0.029, 0.68, 0.6, 0.599? (a) 0.029 (b) 0.68 (c) 0.6 (d) 0.599
  18. 18.What is the value of the digit 6 in 36.497? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  19. 19.3.43 + 8.2 = ? (a) 11.53 (b) 11.63 (c) 4.25 (d) 11.73
  20. 20.5.13 + 2.1 = ? (a) 7.33 (b) 7.13 (c) 7.23 (d) 5.34
  21. 21.What is the value of the digit 4 in 14.859? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  22. 22.What is the value of the digit 5 in 73.945? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  23. 23.Which is the greatest: 0.745, 0.033, 0.8, 0.88? (a) 0.745 (b) 0.033 (c) 0.8 (d) 0.88
  24. 24.Which is the greatest: 0.7, 0.689, 0.047, 0.79? (a) 0.7 (b) 0.689 (c) 0.047 (d) 0.79
  25. 25.What is the value of the digit 7 in 31.457? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  26. 26.What is the value of the digit 4 in 82.491? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  27. 27.What is the value of the digit 9 in 79.128? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  28. 28.Which is the smallest: 0.3, 0.072, 0.32, 0.299? (a) 0.3 (b) 0.072 (c) 0.32 (d) 0.299
  29. 29.Which is the smallest: 0.237, 0.045, 0.38, 0.3? (a) 0.237 (b) 0.045 (c) 0.38 (d) 0.3
  30. 30.1.38 + 1.2 = ? (a) 1.5 (b) 2.58 (c) 2.68 (d) 2.48
  31. 31.What is the value of the digit 6 in 64.178? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  32. 32.6.87 + 2.7 = ? (a) 9.47 (b) 9.57 (c) 7.14 (d) 9.67
  33. 33.6.81 + 8.6 = ? (a) 15.51 (b) 15.41 (c) 15.31 (d) 7.67
  34. 34.4.24 + 9.1 = ? (a) 13.24 (b) 13.44 (c) 13.34 (d) 5.15
  35. 35.Which is the greatest: 0.711, 0.8, 0.057, 0.85? (a) 0.711 (b) 0.8 (c) 0.057 (d) 0.85
  36. 36.What is the value of the digit 1 in 18.324? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  37. 37.What is the value of the digit 5 in 85.364? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  38. 38.What is the value of the digit 1 in 85.213? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  39. 39.What is the value of the digit 3 in 39.485? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  40. 40.What is the value of the digit 9 in 29.671? (a) 0.09 (b) 0.9 (c) 9 (d) 90

Answer key

  1. 0.1
  2. 10.34
  3. 14.08
  4. 0.004
  5. 17.42
  6. 70
  7. 0.017
  8. 80
  9. 0.05
  10. 10.95
  11. 6.96
  12. 10.87
  13. 0.006
  14. 3
  15. 8.01
  16. 10.58
  17. 0.68
  18. 6
  19. 11.63
  20. 7.23
  21. 4
  22. 0.005
  23. 0.88
  24. 0.79
  25. 0.007
  26. 0.4
  27. 9
  28. 0.072
  29. 0.045
  30. 2.58
  31. 60
  32. 9.57
  33. 15.41
  34. 13.34
  35. 0.85
  36. 10
  37. 5
  38. 0.01
  39. 30
  40. 9

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