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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 387 · 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 greatest: 0.7, 0.058, 0.76, 0.698? (a) 0.7 (b) 0.058 (c) 0.76 (d) 0.698
  2. 2.4.62 + 3.7 = ? (a) 4.99 (b) 8.42 (c) 8.32 (d) 8.22
  3. 3.4.01 + 6.1 = ? (a) 4.62 (b) 10.01 (c) 10.11 (d) 10.21
  4. 4.2.06 + 9.3 = ? (a) 11.46 (b) 11.26 (c) 2.99 (d) 11.36
  5. 5.Which is the greatest: 0.016, 0.2, 0.177, 0.21? (a) 0.016 (b) 0.2 (c) 0.177 (d) 0.21
  6. 6.Which is the greatest: 0.191, 0.27, 0.096, 0.2? (a) 0.191 (b) 0.27 (c) 0.096 (d) 0.2
  7. 7.What is the value of the digit 4 in 53.864? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  8. 8.Which is the smallest: 0.043, 0.5, 0.57, 0.431? (a) 0.043 (b) 0.5 (c) 0.57 (d) 0.431
  9. 9.1.45 + 6.9 = ? (a) 8.35 (b) 8.45 (c) 2.14 (d) 8.25
  10. 10.9.98 + 2.2 = ? (a) 10.2 (b) 12.08 (c) 12.28 (d) 12.18
  11. 11.Which is the greatest: 0.33, 0.274, 0.3, 0.088? (a) 0.33 (b) 0.274 (c) 0.3 (d) 0.088
  12. 12.8.44 + 1.8 = ? (a) 10.24 (b) 10.34 (c) 8.62 (d) 10.14
  13. 13.5.71 + 6.6 = ? (a) 6.37 (b) 12.21 (c) 12.31 (d) 12.41
  14. 14.Which is the greatest: 0.045, 0.412, 0.52, 0.5? (a) 0.045 (b) 0.412 (c) 0.52 (d) 0.5
  15. 15.What is the value of the digit 4 in 58.417? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  16. 16.What is the value of the digit 2 in 32.617? (a) 20 (b) 0.02 (c) 2 (d) 0.2
  17. 17.What is the value of the digit 1 in 74.519? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  18. 18.8.54 + 6.5 = ? (a) 15.04 (b) 15.14 (c) 9.19 (d) 14.94
  19. 19.Which is the greatest: 0.28, 0.132, 0.092, 0.2? (a) 0.28 (b) 0.132 (c) 0.092 (d) 0.2
  20. 20.Which is the greatest: 0.48, 0.4, 0.092, 0.325? (a) 0.48 (b) 0.4 (c) 0.092 (d) 0.325
  21. 21.What is the value of the digit 8 in 52.783? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  22. 22.5.01 + 3.8 = ? (a) 8.91 (b) 5.39 (c) 8.71 (d) 8.81
  23. 23.Which is the smallest: 0.529, 0.6, 0.67, 0.046? (a) 0.529 (b) 0.6 (c) 0.67 (d) 0.046
  24. 24.9.31 + 1.2 = ? (a) 9.43 (b) 10.61 (c) 10.41 (d) 10.51
  25. 25.1.39 + 2.4 = ? (a) 3.89 (b) 3.69 (c) 3.79 (d) 1.63
  26. 26.What is the value of the digit 2 in 12.738? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  27. 27.What is the value of the digit 8 in 86.473? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  28. 28.5.55 + 8.9 = ? (a) 14.35 (b) 14.45 (c) 14.55 (d) 6.44
  29. 29.What is the value of the digit 6 in 36.452? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  30. 30.What is the value of the digit 3 in 52.136? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  31. 31.Which is the greatest: 0.8, 0.775, 0.022, 0.87? (a) 0.8 (b) 0.775 (c) 0.022 (d) 0.87
  32. 32.Which is the greatest: 0.632, 0.76, 0.7, 0.019? (a) 0.632 (b) 0.76 (c) 0.7 (d) 0.019
  33. 33.4.76 + 2.7 = ? (a) 7.46 (b) 7.36 (c) 7.56 (d) 5.03
  34. 34.What is the value of the digit 9 in 31.894? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  35. 35.What is the value of the digit 7 in 59.267? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  36. 36.What is the value of the digit 2 in 12.697? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  37. 37.What is the value of the digit 3 in 54.391? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  38. 38.5.33 + 4.6 = ? (a) 10.03 (b) 9.93 (c) 9.83 (d) 5.79
  39. 39.Which is the greatest: 0.172, 0.21, 0.2, 0.083? (a) 0.172 (b) 0.21 (c) 0.2 (d) 0.083
  40. 40.Which is the greatest: 0.562, 0.019, 0.66, 0.6? (a) 0.562 (b) 0.019 (c) 0.66 (d) 0.6

Answer key

  1. 0.76
  2. 8.32
  3. 10.11
  4. 11.36
  5. 0.21
  6. 0.27
  7. 0.004
  8. 0.043
  9. 8.35
  10. 12.18
  11. 0.33
  12. 10.24
  13. 12.31
  14. 0.52
  15. 0.4
  16. 2
  17. 0.01
  18. 15.04
  19. 0.28
  20. 0.48
  21. 0.08
  22. 8.81
  23. 0.046
  24. 10.51
  25. 3.79
  26. 2
  27. 80
  28. 14.45
  29. 6
  30. 0.03
  31. 0.87
  32. 0.76
  33. 7.46
  34. 0.09
  35. 0.007
  36. 2
  37. 0.3
  38. 9.93
  39. 0.21
  40. 0.66

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