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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 59 · 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. 1.1.21 + 1.1 = ? (a) 2.21 (b) 2.41 (c) 1.32 (d) 2.31
  2. 2.What is the value of the digit 7 in 82.763? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  3. 3.1.56 + 9.8 = ? (a) 11.36 (b) 2.54 (c) 11.46 (d) 11.26
  4. 4.What is the value of the digit 1 in 96.231? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  5. 5.1.53 + 8.5 = ? (a) 10.13 (b) 9.93 (c) 2.38 (d) 10.03
  6. 6.8.68 + 6.9 = ? (a) 15.48 (b) 9.37 (c) 15.58 (d) 15.68
  7. 7.9.52 + 3.6 = ? (a) 13.12 (b) 9.88 (c) 13.22 (d) 13.02
  8. 8.What is the value of the digit 1 in 23.196? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  9. 9.4.67 + 2.2 = ? (a) 6.77 (b) 6.87 (c) 6.97 (d) 4.89
  10. 10.Which is the smallest: 0.683, 0.74, 0.7, 0.072? (a) 0.683 (b) 0.74 (c) 0.7 (d) 0.072
  11. 11.1.34 + 8.4 = ? (a) 9.74 (b) 9.64 (c) 2.18 (d) 9.84
  12. 12.5.74 + 8.4 = ? (a) 14.24 (b) 6.58 (c) 14.04 (d) 14.14
  13. 13.9.46 + 3.6 = ? (a) 13.16 (b) 12.96 (c) 9.82 (d) 13.06
  14. 14.5.68 + 5.4 = ? (a) 6.22 (b) 11.18 (c) 10.98 (d) 11.08
  15. 15.3.81 + 8.3 = ? (a) 12.01 (b) 12.21 (c) 4.64 (d) 12.11
  16. 16.Which is the greatest: 0.533, 0.65, 0.052, 0.6? (a) 0.533 (b) 0.65 (c) 0.052 (d) 0.6
  17. 17.What is the value of the digit 1 in 76.193? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  18. 18.6.62 + 4.5 = ? (a) 11.02 (b) 7.07 (c) 11.22 (d) 11.12
  19. 19.5.35 + 7.1 = ? (a) 12.55 (b) 6.06 (c) 12.45 (d) 12.35
  20. 20.Which is the smallest: 0.338, 0.093, 0.46, 0.4? (a) 0.338 (b) 0.093 (c) 0.46 (d) 0.4
  21. 21.What is the value of the digit 9 in 25.769? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  22. 22.9.58 + 8.9 = ? (a) 18.58 (b) 18.38 (c) 18.48 (d) 10.47
  23. 23.1.41 + 7.3 = ? (a) 8.81 (b) 2.14 (c) 8.71 (d) 8.61
  24. 24.What is the value of the digit 2 in 21.734? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  25. 25.What is the value of the digit 3 in 51.732? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  26. 26.9.37 + 1.5 = ? (a) 10.77 (b) 10.87 (c) 9.52 (d) 10.97
  27. 27.5.81 + 7.6 = ? (a) 13.41 (b) 13.31 (c) 6.57 (d) 13.51
  28. 28.Which is the greatest: 0.217, 0.096, 0.38, 0.3? (a) 0.217 (b) 0.096 (c) 0.38 (d) 0.3
  29. 29.9.47 + 8.4 = ? (a) 10.31 (b) 17.97 (c) 17.77 (d) 17.87
  30. 30.What is the value of the digit 3 in 85.423? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  31. 31.6.78 + 9.3 = ? (a) 7.71 (b) 15.98 (c) 16.18 (d) 16.08
  32. 32.8.61 + 6.5 = ? (a) 9.26 (b) 15.21 (c) 15.11 (d) 15.01
  33. 33.What is the value of the digit 7 in 93.247? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  34. 34.Which is the smallest: 0.2, 0.24, 0.023, 0.129? (a) 0.2 (b) 0.24 (c) 0.023 (d) 0.129
  35. 35.Which is the greatest: 0.8, 0.081, 0.81, 0.745? (a) 0.8 (b) 0.081 (c) 0.81 (d) 0.745
  36. 36.What is the value of the digit 2 in 74.216? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  37. 37.9.21 + 7.6 = ? (a) 16.91 (b) 16.71 (c) 16.81 (d) 9.97
  38. 38.What is the value of the digit 6 in 62.541? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  39. 39.Which is the greatest: 0.096, 0.339, 0.42, 0.4? (a) 0.096 (b) 0.339 (c) 0.42 (d) 0.4
  40. 40.3.18 + 8.7 = ? (a) 11.78 (b) 11.98 (c) 11.88 (d) 4.05

Answer key

  1. 2.31
  2. 0.7
  3. 11.36
  4. 0.001
  5. 10.03
  6. 15.58
  7. 13.12
  8. 0.1
  9. 6.87
  10. 0.072
  11. 9.74
  12. 14.14
  13. 13.06
  14. 11.08
  15. 12.11
  16. 0.65
  17. 0.1
  18. 11.12
  19. 12.45
  20. 0.093
  21. 0.009
  22. 18.48
  23. 8.71
  24. 20
  25. 0.03
  26. 10.87
  27. 13.41
  28. 0.38
  29. 17.87
  30. 0.003
  31. 16.08
  32. 15.11
  33. 0.007
  34. 0.023
  35. 0.81
  36. 0.2
  37. 16.81
  38. 60
  39. 0.42
  40. 11.88

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