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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 794 · 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: 0.8, 0.759, 0.86, 0.089? (a) 0.8 (b) 0.759 (c) 0.86 (d) 0.089
  2. 2.1.36 + 9.3 = ? (a) 10.76 (b) 10.56 (c) 2.29 (d) 10.66
  3. 3.Which is the smallest: 0.48, 0.392, 0.4, 0.022? (a) 0.48 (b) 0.392 (c) 0.4 (d) 0.022
  4. 4.Which is the smallest: 0.5, 0.51, 0.458, 0.096? (a) 0.5 (b) 0.51 (c) 0.458 (d) 0.096
  5. 5.What is the value of the digit 4 in 54.261? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  6. 6.What is the value of the digit 2 in 12.397? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  7. 7.What is the value of the digit 7 in 78.916? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  8. 8.Which is the greatest: 0.082, 0.35, 0.289, 0.3? (a) 0.082 (b) 0.35 (c) 0.289 (d) 0.3
  9. 9.2.62 + 4.4 = ? (a) 7.12 (b) 3.06 (c) 7.02 (d) 6.92
  10. 10.6.38 + 7.1 = ? (a) 13.48 (b) 13.58 (c) 7.09 (d) 13.38
  11. 11.3.19 + 7.9 = ? (a) 10.99 (b) 3.98 (c) 11.09 (d) 11.19
  12. 12.What is the value of the digit 7 in 37.945? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  13. 13.1.95 + 1.6 = ? (a) 3.65 (b) 3.55 (c) 3.45 (d) 2.11
  14. 14.Which is the smallest: 0.094, 0.417, 0.52, 0.5? (a) 0.094 (b) 0.417 (c) 0.52 (d) 0.5
  15. 15.Which is the smallest: 0.73, 0.665, 0.7, 0.083? (a) 0.73 (b) 0.665 (c) 0.7 (d) 0.083
  16. 16.8.61 + 2.6 = ? (a) 8.87 (b) 11.11 (c) 11.21 (d) 11.31
  17. 17.9.96 + 7.5 = ? (a) 17.56 (b) 17.46 (c) 17.36 (d) 10.71
  18. 18.What is the value of the digit 3 in 72.683? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  19. 19.6.15 + 4.7 = ? (a) 6.62 (b) 10.85 (c) 10.95 (d) 10.75
  20. 20.Which is the greatest: 0.73, 0.047, 0.7, 0.667? (a) 0.73 (b) 0.047 (c) 0.7 (d) 0.667
  21. 21.7.83 + 9.3 = ? (a) 17.03 (b) 17.13 (c) 8.76 (d) 17.23
  22. 22.Which is the greatest: 0.58, 0.034, 0.499, 0.5? (a) 0.58 (b) 0.034 (c) 0.499 (d) 0.5
  23. 23.Which is the smallest: 0.518, 0.6, 0.62, 0.042? (a) 0.518 (b) 0.6 (c) 0.62 (d) 0.042
  24. 24.1.93 + 6.1 = ? (a) 2.54 (b) 7.93 (c) 8.03 (d) 8.13
  25. 25.Which is the smallest: 0.749, 0.86, 0.066, 0.8? (a) 0.749 (b) 0.86 (c) 0.066 (d) 0.8
  26. 26.Which is the smallest: 0.44, 0.083, 0.313, 0.4? (a) 0.44 (b) 0.083 (c) 0.313 (d) 0.4
  27. 27.7.01 + 3.9 = ? (a) 10.81 (b) 7.4 (c) 10.91 (d) 11.01
  28. 28.6.98 + 8.6 = ? (a) 15.48 (b) 15.58 (c) 7.84 (d) 15.68
  29. 29.2.36 + 8.3 = ? (a) 10.66 (b) 3.19 (c) 10.56 (d) 10.76
  30. 30.7.82 + 5.8 = ? (a) 13.72 (b) 13.62 (c) 8.4 (d) 13.52
  31. 31.8.94 + 7.8 = ? (a) 16.74 (b) 9.72 (c) 16.84 (d) 16.64
  32. 32.1.94 + 3.7 = ? (a) 5.64 (b) 5.54 (c) 2.31 (d) 5.74
  33. 33.What is the value of the digit 5 in 53.827? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  34. 34.What is the value of the digit 4 in 96.734? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  35. 35.What is the value of the digit 6 in 13.576? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  36. 36.Which is the greatest: 0.57, 0.078, 0.5, 0.454? (a) 0.57 (b) 0.078 (c) 0.5 (d) 0.454
  37. 37.Which is the greatest: 0.042, 0.84, 0.737, 0.8? (a) 0.042 (b) 0.84 (c) 0.737 (d) 0.8
  38. 38.Which is the smallest: 0.256, 0.38, 0.3, 0.084? (a) 0.256 (b) 0.38 (c) 0.3 (d) 0.084
  39. 39.Which is the greatest: 0.588, 0.62, 0.036, 0.6? (a) 0.588 (b) 0.62 (c) 0.036 (d) 0.6
  40. 40.Which is the greatest: 0.3, 0.243, 0.34, 0.053? (a) 0.3 (b) 0.243 (c) 0.34 (d) 0.053

Answer key

  1. 0.089
  2. 10.66
  3. 0.022
  4. 0.096
  5. 4
  6. 2
  7. 70
  8. 0.35
  9. 7.02
  10. 13.48
  11. 11.09
  12. 7
  13. 3.55
  14. 0.094
  15. 0.083
  16. 11.21
  17. 17.46
  18. 0.003
  19. 10.85
  20. 0.73
  21. 17.13
  22. 0.58
  23. 0.042
  24. 8.03
  25. 0.066
  26. 0.083
  27. 10.91
  28. 15.58
  29. 10.66
  30. 13.62
  31. 16.74
  32. 5.64
  33. 50
  34. 0.004
  35. 0.006
  36. 0.57
  37. 0.84
  38. 0.084
  39. 0.62
  40. 0.34

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