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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 832 · 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 8 in 71.385? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  2. 2.Which is the smallest: 0.086, 0.6, 0.61, 0.594? (a) 0.086 (b) 0.6 (c) 0.61 (d) 0.594
  3. 3.Which is the greatest: 0.77, 0.7, 0.015, 0.676? (a) 0.77 (b) 0.7 (c) 0.015 (d) 0.676
  4. 4.1.83 + 7.1 = ? (a) 2.54 (b) 8.93 (c) 9.03 (d) 8.83
  5. 5.Which is the greatest: 0.496, 0.076, 0.5, 0.53? (a) 0.496 (b) 0.076 (c) 0.5 (d) 0.53
  6. 6.Which is the smallest: 0.733, 0.054, 0.84, 0.8? (a) 0.733 (b) 0.054 (c) 0.84 (d) 0.8
  7. 7.What is the value of the digit 3 in 52.831? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  8. 8.4.56 + 8.7 = ? (a) 13.36 (b) 13.16 (c) 5.43 (d) 13.26
  9. 9.1.31 + 6.3 = ? (a) 7.71 (b) 7.51 (c) 7.61 (d) 1.94
  10. 10.9.33 + 4.5 = ? (a) 13.83 (b) 13.73 (c) 9.78 (d) 13.93
  11. 11.4.15 + 5.1 = ? (a) 9.35 (b) 4.66 (c) 9.15 (d) 9.25
  12. 12.What is the value of the digit 8 in 93.568? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  13. 13.Which is the greatest: 0.695, 0.054, 0.77, 0.7? (a) 0.695 (b) 0.054 (c) 0.77 (d) 0.7
  14. 14.Which is the greatest: 0.025, 0.236, 0.3, 0.37? (a) 0.025 (b) 0.236 (c) 0.3 (d) 0.37
  15. 15.What is the value of the digit 5 in 85.937? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  16. 16.2.01 + 5.8 = ? (a) 7.71 (b) 2.59 (c) 7.81 (d) 7.91
  17. 17.Which is the greatest: 0.042, 0.2, 0.164, 0.29? (a) 0.042 (b) 0.2 (c) 0.164 (d) 0.29
  18. 18.7.37 + 3.1 = ? (a) 10.37 (b) 10.47 (c) 7.68 (d) 10.57
  19. 19.5.36 + 6.8 = ? (a) 6.04 (b) 12.26 (c) 12.16 (d) 12.06
  20. 20.What is the value of the digit 6 in 56.314? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  21. 21.Which is the greatest: 0.588, 0.6, 0.053, 0.63? (a) 0.588 (b) 0.6 (c) 0.053 (d) 0.63
  22. 22.6.94 + 1.7 = ? (a) 7.11 (b) 8.74 (c) 8.54 (d) 8.64
  23. 23.Which is the greatest: 0.011, 0.54, 0.5, 0.468? (a) 0.011 (b) 0.54 (c) 0.5 (d) 0.468
  24. 24.9.92 + 5.5 = ? (a) 10.47 (b) 15.32 (c) 15.42 (d) 15.52
  25. 25.Which is the greatest: 0.547, 0.69, 0.093, 0.6? (a) 0.547 (b) 0.69 (c) 0.093 (d) 0.6
  26. 26.Which is the greatest: 0.479, 0.5, 0.52, 0.018? (a) 0.479 (b) 0.5 (c) 0.52 (d) 0.018
  27. 27.4.77 + 1.7 = ? (a) 6.57 (b) 4.94 (c) 6.37 (d) 6.47
  28. 28.What is the value of the digit 4 in 42.761? (a) 40 (b) 4 (c) 0.4 (d) 0.04
  29. 29.Which is the greatest: 0.7, 0.76, 0.083, 0.691? (a) 0.7 (b) 0.76 (c) 0.083 (d) 0.691
  30. 30.1.31 + 6.9 = ? (a) 8.31 (b) 8.11 (c) 8.21 (d) 2
  31. 31.9.72 + 8.2 = ? (a) 17.92 (b) 18.02 (c) 17.82 (d) 10.54
  32. 32.4.01 + 1.2 = ? (a) 5.21 (b) 4.13 (c) 5.31 (d) 5.11
  33. 33.What is the value of the digit 6 in 91.463? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  34. 34.Which is the smallest: 0.046, 0.8, 0.787, 0.89? (a) 0.046 (b) 0.8 (c) 0.787 (d) 0.89
  35. 35.1.96 + 1.4 = ? (a) 3.46 (b) 3.26 (c) 3.36 (d) 2.1
  36. 36.What is the value of the digit 9 in 19.385? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  37. 37.3.12 + 2.8 = ? (a) 5.82 (b) 5.92 (c) 3.4 (d) 6.02
  38. 38.2.55 + 7.1 = ? (a) 9.75 (b) 9.55 (c) 3.26 (d) 9.65
  39. 39.2.17 + 5.8 = ? (a) 7.87 (b) 2.75 (c) 8.07 (d) 7.97
  40. 40.1.45 + 9.8 = ? (a) 11.25 (b) 11.15 (c) 11.35 (d) 2.43

Answer key

  1. 0.08
  2. 0.086
  3. 0.77
  4. 8.93
  5. 0.53
  6. 0.054
  7. 0.03
  8. 13.26
  9. 7.61
  10. 13.83
  11. 9.25
  12. 0.008
  13. 0.77
  14. 0.37
  15. 5
  16. 7.81
  17. 0.29
  18. 10.47
  19. 12.16
  20. 6
  21. 0.63
  22. 8.64
  23. 0.54
  24. 15.42
  25. 0.69
  26. 0.52
  27. 6.47
  28. 40
  29. 0.76
  30. 8.21
  31. 17.92
  32. 5.21
  33. 0.06
  34. 0.046
  35. 3.36
  36. 9
  37. 5.92
  38. 9.65
  39. 7.97
  40. 11.25

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