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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 22 · 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 2 in 98.246? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  2. 2.What is the value of the digit 1 in 19.635? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  3. 3.2.39 + 1.7 = ? (a) 4.19 (b) 2.56 (c) 4.09 (d) 3.99
  4. 4.7.59 + 8.6 = ? (a) 16.29 (b) 8.45 (c) 16.09 (d) 16.19
  5. 5.What is the value of the digit 2 in 72.581? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  6. 6.What is the value of the digit 5 in 41.568? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  7. 7.What is the value of the digit 8 in 86.152? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  8. 8.3.38 + 3.9 = ? (a) 7.38 (b) 7.18 (c) 3.77 (d) 7.28
  9. 9.Which is the greatest: 0.48, 0.376, 0.016, 0.4? (a) 0.48 (b) 0.376 (c) 0.016 (d) 0.4
  10. 10.6.18 + 2.8 = ? (a) 8.98 (b) 6.46 (c) 8.88 (d) 9.08
  11. 11.Which is the smallest: 0.053, 0.291, 0.3, 0.34? (a) 0.053 (b) 0.291 (c) 0.3 (d) 0.34
  12. 12.Which is the smallest: 0.077, 0.28, 0.2, 0.161? (a) 0.077 (b) 0.28 (c) 0.2 (d) 0.161
  13. 13.What is the value of the digit 1 in 68.513? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  14. 14.5.82 + 9.1 = ? (a) 14.92 (b) 15.02 (c) 6.73 (d) 14.82
  15. 15.3.49 + 1.4 = ? (a) 4.99 (b) 3.63 (c) 4.79 (d) 4.89
  16. 16.What is the value of the digit 1 in 12.936? (a) 0.1 (b) 1 (c) 10 (d) 0.01
  17. 17.What is the value of the digit 3 in 37.645? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  18. 18.7.02 + 3.7 = ? (a) 7.39 (b) 10.62 (c) 10.82 (d) 10.72
  19. 19.4.64 + 7.3 = ? (a) 12.04 (b) 11.94 (c) 5.37 (d) 11.84
  20. 20.What is the value of the digit 7 in 78.135? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  21. 21.What is the value of the digit 9 in 94.812? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  22. 22.2.27 + 5.1 = ? (a) 7.37 (b) 7.27 (c) 7.47 (d) 2.78
  23. 23.1.73 + 5.1 = ? (a) 6.93 (b) 6.73 (c) 2.24 (d) 6.83
  24. 24.What is the value of the digit 8 in 86.213? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  25. 25.What is the value of the digit 7 in 78.263? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  26. 26.What is the value of the digit 4 in 94.628? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  27. 27.Which is the greatest: 0.541, 0.64, 0.6, 0.052? (a) 0.541 (b) 0.64 (c) 0.6 (d) 0.052
  28. 28.What is the value of the digit 2 in 24.618? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  29. 29.What is the value of the digit 1 in 73.152? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  30. 30.Which is the greatest: 0.8, 0.84, 0.762, 0.049? (a) 0.8 (b) 0.84 (c) 0.762 (d) 0.049
  31. 31.What is the value of the digit 1 in 74.612? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  32. 32.What is the value of the digit 9 in 93.645? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  33. 33.Which is the greatest: 0.2, 0.24, 0.043, 0.114? (a) 0.2 (b) 0.24 (c) 0.043 (d) 0.114
  34. 34.Which is the smallest: 0.21, 0.073, 0.2, 0.185? (a) 0.21 (b) 0.073 (c) 0.2 (d) 0.185
  35. 35.1.28 + 5.4 = ? (a) 6.58 (b) 1.82 (c) 6.78 (d) 6.68
  36. 36.2.11 + 1.7 = ? (a) 3.91 (b) 2.28 (c) 3.71 (d) 3.81
  37. 37.9.88 + 1.4 = ? (a) 11.28 (b) 11.38 (c) 10.02 (d) 11.18
  38. 38.Which is the greatest: 0.166, 0.21, 0.036, 0.2? (a) 0.166 (b) 0.21 (c) 0.036 (d) 0.2
  39. 39.4.44 + 2.3 = ? (a) 4.67 (b) 6.84 (c) 6.74 (d) 6.64
  40. 40.7.17 + 2.4 = ? (a) 9.57 (b) 7.41 (c) 9.67 (d) 9.47

Answer key

  1. 0.2
  2. 10
  3. 4.09
  4. 16.19
  5. 2
  6. 0.5
  7. 80
  8. 7.28
  9. 0.48
  10. 8.98
  11. 0.053
  12. 0.077
  13. 0.01
  14. 14.92
  15. 4.89
  16. 10
  17. 30
  18. 10.72
  19. 11.94
  20. 70
  21. 90
  22. 7.37
  23. 6.83
  24. 80
  25. 70
  26. 4
  27. 0.64
  28. 20
  29. 0.1
  30. 0.84
  31. 0.01
  32. 90
  33. 0.24
  34. 0.073
  35. 6.68
  36. 3.81
  37. 11.28
  38. 0.21
  39. 6.74
  40. 9.57

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