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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 348 · 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. 1.5.27 + 1.6 = ? (a) 6.97 (b) 6.87 (c) 6.77 (d) 5.43
  2. 2.Which is the smallest: 0.7, 0.082, 0.664, 0.75? (a) 0.7 (b) 0.082 (c) 0.664 (d) 0.75
  3. 3.3.74 + 2.1 = ? (a) 5.84 (b) 5.74 (c) 5.94 (d) 3.95
  4. 4.What is the value of the digit 6 in 38.769? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  5. 5.Which is the greatest: 0.5, 0.411, 0.024, 0.52? (a) 0.5 (b) 0.411 (c) 0.024 (d) 0.52
  6. 6.6.36 + 4.6 = ? (a) 10.86 (b) 11.06 (c) 6.82 (d) 10.96
  7. 7.Which is the greatest: 0.6, 0.543, 0.075, 0.69? (a) 0.6 (b) 0.543 (c) 0.075 (d) 0.69
  8. 8.6.25 + 3.2 = ? (a) 9.45 (b) 6.57 (c) 9.35 (d) 9.55
  9. 9.Which is the smallest: 0.792, 0.84, 0.8, 0.013? (a) 0.792 (b) 0.84 (c) 0.8 (d) 0.013
  10. 10.9.26 + 9.9 = ? (a) 19.26 (b) 10.25 (c) 19.16 (d) 19.06
  11. 11.Which is the greatest: 0.8, 0.025, 0.798, 0.85? (a) 0.8 (b) 0.025 (c) 0.798 (d) 0.85
  12. 12.Which is the smallest: 0.052, 0.795, 0.8, 0.83? (a) 0.052 (b) 0.795 (c) 0.8 (d) 0.83
  13. 13.1.98 + 6.5 = ? (a) 2.63 (b) 8.48 (c) 8.58 (d) 8.38
  14. 14.What is the value of the digit 8 in 85.197? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  15. 15.5.04 + 5.7 = ? (a) 10.74 (b) 10.64 (c) 10.84 (d) 5.61
  16. 16.4.43 + 3.2 = ? (a) 4.75 (b) 7.53 (c) 7.63 (d) 7.73
  17. 17.Which is the greatest: 0.83, 0.8, 0.036, 0.784? (a) 0.83 (b) 0.8 (c) 0.036 (d) 0.784
  18. 18.Which is the greatest: 0.86, 0.8, 0.761, 0.075? (a) 0.86 (b) 0.8 (c) 0.761 (d) 0.075
  19. 19.1.15 + 7.6 = ? (a) 8.65 (b) 1.91 (c) 8.75 (d) 8.85
  20. 20.What is the value of the digit 8 in 93.258? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  21. 21.Which is the smallest: 0.34, 0.3, 0.045, 0.223? (a) 0.34 (b) 0.3 (c) 0.045 (d) 0.223
  22. 22.6.94 + 1.9 = ? (a) 8.94 (b) 8.74 (c) 8.84 (d) 7.13
  23. 23.4.95 + 5.4 = ? (a) 10.35 (b) 5.49 (c) 10.25 (d) 10.45
  24. 24.2.18 + 1.1 = ? (a) 3.28 (b) 3.18 (c) 3.38 (d) 2.29
  25. 25.2.79 + 3.2 = ? (a) 5.99 (b) 6.09 (c) 5.89 (d) 3.11
  26. 26.Which is the smallest: 0.5, 0.014, 0.51, 0.456? (a) 0.5 (b) 0.014 (c) 0.51 (d) 0.456
  27. 27.What is the value of the digit 9 in 97.218? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  28. 28.Which is the greatest: 0.84, 0.8, 0.053, 0.722? (a) 0.84 (b) 0.8 (c) 0.053 (d) 0.722
  29. 29.1.19 + 1.4 = ? (a) 2.59 (b) 2.69 (c) 1.33 (d) 2.49
  30. 30.What is the value of the digit 1 in 87.215? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  31. 31.7.22 + 2.2 = ? (a) 9.52 (b) 9.32 (c) 9.42 (d) 7.44
  32. 32.What is the value of the digit 3 in 94.325? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  33. 33.What is the value of the digit 1 in 18.367? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  34. 34.Which is the smallest: 0.059, 0.2, 0.23, 0.199? (a) 0.059 (b) 0.2 (c) 0.23 (d) 0.199
  35. 35.3.74 + 6.5 = ? (a) 10.34 (b) 4.39 (c) 10.14 (d) 10.24
  36. 36.7.15 + 1.4 = ? (a) 8.45 (b) 8.65 (c) 8.55 (d) 7.29
  37. 37.2.42 + 2.7 = ? (a) 2.69 (b) 5.02 (c) 5.22 (d) 5.12
  38. 38.3.36 + 8.8 = ? (a) 12.26 (b) 12.16 (c) 12.06 (d) 4.24
  39. 39.Which is the smallest: 0.437, 0.5, 0.028, 0.57? (a) 0.437 (b) 0.5 (c) 0.028 (d) 0.57
  40. 40.What is the value of the digit 6 in 36.917? (a) 6 (b) 0.6 (c) 0.06 (d) 60

Answer key

  1. 6.87
  2. 0.082
  3. 5.84
  4. 0.06
  5. 0.52
  6. 10.96
  7. 0.69
  8. 9.45
  9. 0.013
  10. 19.16
  11. 0.85
  12. 0.052
  13. 8.48
  14. 80
  15. 10.74
  16. 7.63
  17. 0.83
  18. 0.86
  19. 8.75
  20. 0.008
  21. 0.045
  22. 8.84
  23. 10.35
  24. 3.28
  25. 5.99
  26. 0.014
  27. 90
  28. 0.84
  29. 2.59
  30. 0.01
  31. 9.42
  32. 0.3
  33. 10
  34. 0.059
  35. 10.24
  36. 8.55
  37. 5.12
  38. 12.16
  39. 0.028
  40. 6

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