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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 122 · 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 smallest: 0.7, 0.658, 0.018, 0.77? (a) 0.7 (b) 0.658 (c) 0.018 (d) 0.77
  2. 2.1.39 + 3.2 = ? (a) 4.59 (b) 4.69 (c) 1.71 (d) 4.49
  3. 3.What is the value of the digit 6 in 61.824? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  4. 4.5.78 + 7.1 = ? (a) 12.98 (b) 6.49 (c) 12.78 (d) 12.88
  5. 5.5.49 + 2.4 = ? (a) 7.79 (b) 7.99 (c) 5.73 (d) 7.89
  6. 6.1.95 + 3.3 = ? (a) 2.28 (b) 5.25 (c) 5.35 (d) 5.15
  7. 7.2.31 + 1.9 = ? (a) 2.5 (b) 4.21 (c) 4.11 (d) 4.31
  8. 8.What is the value of the digit 6 in 61.579? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  9. 9.Which is the smallest: 0.093, 0.591, 0.61, 0.6? (a) 0.093 (b) 0.591 (c) 0.61 (d) 0.6
  10. 10.Which is the smallest: 0.175, 0.2, 0.012, 0.26? (a) 0.175 (b) 0.2 (c) 0.012 (d) 0.26
  11. 11.What is the value of the digit 3 in 18.273? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  12. 12.5.21 + 7.8 = ? (a) 13.11 (b) 12.91 (c) 5.99 (d) 13.01
  13. 13.What is the value of the digit 3 in 19.436? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  14. 14.What is the value of the digit 1 in 45.891? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  15. 15.Which is the greatest: 0.6, 0.572, 0.62, 0.061? (a) 0.6 (b) 0.572 (c) 0.62 (d) 0.061
  16. 16.What is the value of the digit 7 in 28.769? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  17. 17.Which is the greatest: 0.4, 0.43, 0.313, 0.065? (a) 0.4 (b) 0.43 (c) 0.313 (d) 0.065
  18. 18.Which is the greatest: 0.242, 0.3, 0.088, 0.32? (a) 0.242 (b) 0.3 (c) 0.088 (d) 0.32
  19. 19.2.65 + 2.9 = ? (a) 5.65 (b) 5.45 (c) 5.55 (d) 2.94
  20. 20.6.18 + 4.9 = ? (a) 11.18 (b) 11.08 (c) 10.98 (d) 6.67
  21. 21.What is the value of the digit 4 in 84.796? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  22. 22.What is the value of the digit 5 in 65.914? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  23. 23.4.43 + 3.1 = ? (a) 7.43 (b) 7.53 (c) 7.63 (d) 4.74
  24. 24.6.47 + 8.7 = ? (a) 15.07 (b) 15.17 (c) 7.34 (d) 15.27
  25. 25.Which is the greatest: 0.238, 0.31, 0.3, 0.032? (a) 0.238 (b) 0.31 (c) 0.3 (d) 0.032
  26. 26.4.85 + 3.7 = ? (a) 8.45 (b) 8.55 (c) 5.22 (d) 8.65
  27. 27.What is the value of the digit 8 in 38.612? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  28. 28.Which is the smallest: 0.156, 0.2, 0.25, 0.062? (a) 0.156 (b) 0.2 (c) 0.25 (d) 0.062
  29. 29.Which is the smallest: 0.8, 0.013, 0.89, 0.794? (a) 0.8 (b) 0.013 (c) 0.89 (d) 0.794
  30. 30.Which is the greatest: 0.5, 0.455, 0.083, 0.51? (a) 0.5 (b) 0.455 (c) 0.083 (d) 0.51
  31. 31.6.11 + 1.9 = ? (a) 8.11 (b) 8.01 (c) 6.3 (d) 7.91
  32. 32.5.21 + 7.7 = ? (a) 12.81 (b) 5.98 (c) 12.91 (d) 13.01
  33. 33.Which is the smallest: 0.049, 0.73, 0.634, 0.7? (a) 0.049 (b) 0.73 (c) 0.634 (d) 0.7
  34. 34.What is the value of the digit 8 in 35.781? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  35. 35.3.54 + 5.5 = ? (a) 9.14 (b) 4.09 (c) 8.94 (d) 9.04
  36. 36.Which is the smallest: 0.269, 0.35, 0.029, 0.3? (a) 0.269 (b) 0.35 (c) 0.029 (d) 0.3
  37. 37.What is the value of the digit 8 in 29.831? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  38. 38.6.11 + 3.4 = ? (a) 9.61 (b) 6.45 (c) 9.41 (d) 9.51
  39. 39.What is the value of the digit 4 in 71.354? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  40. 40.4.21 + 7.4 = ? (a) 4.95 (b) 11.51 (c) 11.61 (d) 11.71

Answer key

  1. 0.018
  2. 4.59
  3. 60
  4. 12.88
  5. 7.89
  6. 5.25
  7. 4.21
  8. 60
  9. 0.093
  10. 0.012
  11. 0.003
  12. 13.01
  13. 0.03
  14. 0.001
  15. 0.62
  16. 0.7
  17. 0.43
  18. 0.32
  19. 5.55
  20. 11.08
  21. 4
  22. 5
  23. 7.53
  24. 15.17
  25. 0.31
  26. 8.55
  27. 8
  28. 0.062
  29. 0.013
  30. 0.51
  31. 8.01
  32. 12.91
  33. 0.049
  34. 0.08
  35. 9.04
  36. 0.029
  37. 0.8
  38. 9.51
  39. 0.004
  40. 11.61

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