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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 277 · 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: 0.136, 0.093, 0.25, 0.2? (a) 0.136 (b) 0.093 (c) 0.25 (d) 0.2
  2. 2.What is the value of the digit 9 in 37.912? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  3. 3.What is the value of the digit 6 in 47.658? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  4. 4.What is the value of the digit 1 in 54.319? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  5. 5.What is the value of the digit 6 in 51.426? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  6. 6.7.51 + 5.5 = ? (a) 13.11 (b) 13.01 (c) 12.91 (d) 8.06
  7. 7.What is the value of the digit 3 in 64.231? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  8. 8.Which is the greatest: 0.62, 0.6, 0.519, 0.014? (a) 0.62 (b) 0.6 (c) 0.519 (d) 0.014
  9. 9.6.56 + 2.1 = ? (a) 8.66 (b) 8.56 (c) 6.77 (d) 8.76
  10. 10.What is the value of the digit 2 in 17.826? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  11. 11.6.32 + 9.7 = ? (a) 15.92 (b) 7.29 (c) 16.02 (d) 16.12
  12. 12.What is the value of the digit 4 in 41.267? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  13. 13.What is the value of the digit 6 in 21.678? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  14. 14.6.89 + 9.1 = ? (a) 7.8 (b) 16.09 (c) 15.99 (d) 15.89
  15. 15.What is the value of the digit 4 in 86.914? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  16. 16.6.49 + 6.8 = ? (a) 13.29 (b) 7.17 (c) 13.39 (d) 13.19
  17. 17.What is the value of the digit 2 in 82.751? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  18. 18.Which is the smallest: 0.56, 0.5, 0.034, 0.439? (a) 0.56 (b) 0.5 (c) 0.034 (d) 0.439
  19. 19.Which is the smallest: 0.162, 0.22, 0.086, 0.2? (a) 0.162 (b) 0.22 (c) 0.086 (d) 0.2
  20. 20.What is the value of the digit 9 in 21.978? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  21. 21.1.29 + 7.3 = ? (a) 8.69 (b) 8.49 (c) 8.59 (d) 2.02
  22. 22.3.78 + 6.1 = ? (a) 9.98 (b) 9.78 (c) 9.88 (d) 4.39
  23. 23.What is the value of the digit 4 in 31.482? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  24. 24.What is the value of the digit 8 in 39.248? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08
  25. 25.6.41 + 7.1 = ? (a) 7.12 (b) 13.51 (c) 13.61 (d) 13.41
  26. 26.What is the value of the digit 1 in 94.571? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  27. 27.What is the value of the digit 4 in 45.618? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  28. 28.What is the value of the digit 5 in 48.235? (a) 5 (b) 0.005 (c) 0.05 (d) 0.5
  29. 29.1.06 + 1.4 = ? (a) 2.56 (b) 2.46 (c) 1.2 (d) 2.36
  30. 30.Which is the smallest: 0.365, 0.41, 0.063, 0.4? (a) 0.365 (b) 0.41 (c) 0.063 (d) 0.4
  31. 31.3.64 + 7.4 = ? (a) 11.14 (b) 11.04 (c) 4.38 (d) 10.94
  32. 32.3.67 + 8.4 = ? (a) 12.07 (b) 12.17 (c) 4.51 (d) 11.97
  33. 33.1.17 + 9.2 = ? (a) 10.47 (b) 10.27 (c) 2.09 (d) 10.37
  34. 34.Which is the smallest: 0.2, 0.21, 0.112, 0.015? (a) 0.2 (b) 0.21 (c) 0.112 (d) 0.015
  35. 35.5.79 + 2.4 = ? (a) 6.03 (b) 8.19 (c) 8.09 (d) 8.29
  36. 36.Which is the greatest: 0.025, 0.725, 0.8, 0.85? (a) 0.025 (b) 0.725 (c) 0.8 (d) 0.85
  37. 37.What is the value of the digit 7 in 72.381? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  38. 38.3.84 + 6.9 = ? (a) 10.64 (b) 10.84 (c) 4.53 (d) 10.74
  39. 39.9.07 + 5.3 = ? (a) 14.47 (b) 9.6 (c) 14.27 (d) 14.37
  40. 40.What is the value of the digit 9 in 89.716? (a) 90 (b) 0.09 (c) 9 (d) 0.9

Answer key

  1. 0.25
  2. 0.9
  3. 0.6
  4. 0.01
  5. 0.006
  6. 13.01
  7. 0.03
  8. 0.62
  9. 8.66
  10. 0.02
  11. 16.02
  12. 40
  13. 0.6
  14. 15.99
  15. 0.004
  16. 13.29
  17. 2
  18. 0.034
  19. 0.086
  20. 0.9
  21. 8.59
  22. 9.88
  23. 0.4
  24. 0.008
  25. 13.51
  26. 0.001
  27. 40
  28. 0.005
  29. 2.46
  30. 0.063
  31. 11.04
  32. 12.07
  33. 10.37
  34. 0.015
  35. 8.19
  36. 0.85
  37. 70
  38. 10.74
  39. 14.37
  40. 9

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