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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 736 · 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. 1.5.83 + 2.8 = ? (a) 8.53 (b) 6.11 (c) 8.73 (d) 8.63
  2. 2.Which is the greatest: 0.7, 0.617, 0.76, 0.083? (a) 0.7 (b) 0.617 (c) 0.76 (d) 0.083
  3. 3.Which is the smallest: 0.23, 0.2, 0.038, 0.132? (a) 0.23 (b) 0.2 (c) 0.038 (d) 0.132
  4. 4.Which is the greatest: 0.227, 0.3, 0.063, 0.32? (a) 0.227 (b) 0.3 (c) 0.063 (d) 0.32
  5. 5.Which is the greatest: 0.8, 0.784, 0.019, 0.85? (a) 0.8 (b) 0.784 (c) 0.019 (d) 0.85
  6. 6.4.59 + 4.3 = ? (a) 8.89 (b) 8.79 (c) 8.99 (d) 5.02
  7. 7.5.78 + 8.1 = ? (a) 13.98 (b) 13.88 (c) 13.78 (d) 6.59
  8. 8.What is the value of the digit 6 in 41.976? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  9. 9.What is the value of the digit 6 in 62.983? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  10. 10.Which is the smallest: 0.022, 0.43, 0.372, 0.4? (a) 0.022 (b) 0.43 (c) 0.372 (d) 0.4
  11. 11.Which is the greatest: 0.5, 0.472, 0.53, 0.021? (a) 0.5 (b) 0.472 (c) 0.53 (d) 0.021
  12. 12.What is the value of the digit 5 in 24.385? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  13. 13.7.22 + 8.3 = ? (a) 15.52 (b) 15.62 (c) 15.42 (d) 8.05
  14. 14.Which is the smallest: 0.039, 0.51, 0.5, 0.413? (a) 0.039 (b) 0.51 (c) 0.5 (d) 0.413
  15. 15.What is the value of the digit 8 in 16.387? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  16. 16.What is the value of the digit 4 in 82.417? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  17. 17.Which is the smallest: 0.3, 0.274, 0.32, 0.052? (a) 0.3 (b) 0.274 (c) 0.32 (d) 0.052
  18. 18.Which is the greatest: 0.4, 0.323, 0.48, 0.031? (a) 0.4 (b) 0.323 (c) 0.48 (d) 0.031
  19. 19.5.21 + 7.9 = ? (a) 13.21 (b) 13.01 (c) 6 (d) 13.11
  20. 20.What is the value of the digit 4 in 24.513? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  21. 21.What is the value of the digit 3 in 85.732? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  22. 22.3.71 + 1.8 = ? (a) 5.61 (b) 5.41 (c) 3.89 (d) 5.51
  23. 23.What is the value of the digit 6 in 26.137? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  24. 24.What is the value of the digit 9 in 53.829? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
  25. 25.Which is the greatest: 0.2, 0.27, 0.029, 0.179? (a) 0.2 (b) 0.27 (c) 0.029 (d) 0.179
  26. 26.9.11 + 7.8 = ? (a) 17.01 (b) 9.89 (c) 16.91 (d) 16.81
  27. 27.7.51 + 2.3 = ? (a) 9.71 (b) 9.91 (c) 7.74 (d) 9.81
  28. 28.Which is the greatest: 0.8, 0.86, 0.772, 0.083? (a) 0.8 (b) 0.86 (c) 0.772 (d) 0.083
  29. 29.Which is the smallest: 0.149, 0.23, 0.054, 0.2? (a) 0.149 (b) 0.23 (c) 0.054 (d) 0.2
  30. 30.What is the value of the digit 3 in 35.148? (a) 0.3 (b) 30 (c) 0.03 (d) 3
  31. 31.7.61 + 7.4 = ? (a) 14.91 (b) 15.01 (c) 8.35 (d) 15.11
  32. 32.What is the value of the digit 6 in 54.869? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  33. 33.3.36 + 4.9 = ? (a) 8.16 (b) 3.85 (c) 8.36 (d) 8.26
  34. 34.1.21 + 2.1 = ? (a) 3.41 (b) 3.31 (c) 3.21 (d) 1.42
  35. 35.6.03 + 3.8 = ? (a) 6.41 (b) 9.83 (c) 9.73 (d) 9.93
  36. 36.8.37 + 4.3 = ? (a) 12.67 (b) 8.8 (c) 12.57 (d) 12.77
  37. 37.What is the value of the digit 6 in 41.629? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  38. 38.Which is the greatest: 0.071, 0.22, 0.139, 0.2? (a) 0.071 (b) 0.22 (c) 0.139 (d) 0.2
  39. 39.What is the value of the digit 6 in 52.637? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  40. 40.What is the value of the digit 2 in 74.932? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002

Answer key

  1. 8.63
  2. 0.76
  3. 0.038
  4. 0.32
  5. 0.85
  6. 8.89
  7. 13.88
  8. 0.006
  9. 60
  10. 0.022
  11. 0.53
  12. 0.005
  13. 15.52
  14. 0.039
  15. 0.08
  16. 0.4
  17. 0.052
  18. 0.48
  19. 13.11
  20. 4
  21. 0.03
  22. 5.51
  23. 6
  24. 0.009
  25. 0.27
  26. 16.91
  27. 9.81
  28. 0.86
  29. 0.054
  30. 30
  31. 15.01
  32. 0.06
  33. 8.26
  34. 3.31
  35. 9.83
  36. 12.67
  37. 0.6
  38. 0.22
  39. 0.6
  40. 0.002

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