← Decimals and place value lesson New set →

Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 53 · 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. 1.8.71 + 9.9 = ? (a) 18.61 (b) 18.71 (c) 18.51 (d) 9.7
  2. 2.3.01 + 8.2 = ? (a) 11.21 (b) 11.11 (c) 11.31 (d) 3.83
  3. 3.9.68 + 4.9 = ? (a) 10.17 (b) 14.68 (c) 14.48 (d) 14.58
  4. 4.Which is the smallest: 0.021, 0.184, 0.22, 0.2? (a) 0.021 (b) 0.184 (c) 0.22 (d) 0.2
  5. 5.9.33 + 9.6 = ? (a) 19.03 (b) 10.29 (c) 18.93 (d) 18.83
  6. 6.What is the value of the digit 5 in 45.926? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  7. 7.8.24 + 1.9 = ? (a) 10.04 (b) 10.14 (c) 10.24 (d) 8.43
  8. 8.3.35 + 2.8 = ? (a) 3.63 (b) 6.25 (c) 6.15 (d) 6.05
  9. 9.8.55 + 5.6 = ? (a) 14.25 (b) 14.15 (c) 9.11 (d) 14.05
  10. 10.9.16 + 1.4 = ? (a) 10.56 (b) 10.66 (c) 10.46 (d) 9.3
  11. 11.What is the value of the digit 5 in 25.976? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  12. 12.7.79 + 8.5 = ? (a) 8.64 (b) 16.19 (c) 16.29 (d) 16.39
  13. 13.Which is the greatest: 0.082, 0.2, 0.24, 0.187? (a) 0.082 (b) 0.2 (c) 0.24 (d) 0.187
  14. 14.5.29 + 3.3 = ? (a) 8.49 (b) 5.62 (c) 8.59 (d) 8.69
  15. 15.8.62 + 1.3 = ? (a) 8.75 (b) 10.02 (c) 9.92 (d) 9.82
  16. 16.What is the value of the digit 5 in 59.368? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  17. 17.What is the value of the digit 4 in 81.964? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  18. 18.What is the value of the digit 2 in 54.821? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  19. 19.What is the value of the digit 2 in 21.867? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  20. 20.What is the value of the digit 9 in 42.976? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  21. 21.3.68 + 4.4 = ? (a) 7.98 (b) 8.18 (c) 4.12 (d) 8.08
  22. 22.Which is the smallest: 0.186, 0.072, 0.22, 0.2? (a) 0.186 (b) 0.072 (c) 0.22 (d) 0.2
  23. 23.Which is the smallest: 0.54, 0.039, 0.436, 0.5? (a) 0.54 (b) 0.039 (c) 0.436 (d) 0.5
  24. 24.Which is the greatest: 0.194, 0.25, 0.2, 0.091? (a) 0.194 (b) 0.25 (c) 0.2 (d) 0.091
  25. 25.Which is the smallest: 0.083, 0.5, 0.54, 0.426? (a) 0.083 (b) 0.5 (c) 0.54 (d) 0.426
  26. 26.Which is the greatest: 0.016, 0.25, 0.2, 0.167? (a) 0.016 (b) 0.25 (c) 0.2 (d) 0.167
  27. 27.2.46 + 7.1 = ? (a) 3.17 (b) 9.46 (c) 9.66 (d) 9.56
  28. 28.5.81 + 5.5 = ? (a) 11.31 (b) 11.21 (c) 6.36 (d) 11.41
  29. 29.1.25 + 5.8 = ? (a) 1.83 (b) 7.05 (c) 7.15 (d) 6.95
  30. 30.Which is the smallest: 0.63, 0.6, 0.511, 0.085? (a) 0.63 (b) 0.6 (c) 0.511 (d) 0.085
  31. 31.2.98 + 5.8 = ? (a) 8.78 (b) 8.88 (c) 3.56 (d) 8.68
  32. 32.8.61 + 6.2 = ? (a) 14.81 (b) 14.71 (c) 9.23 (d) 14.91
  33. 33.Which is the smallest: 0.38, 0.243, 0.087, 0.3? (a) 0.38 (b) 0.243 (c) 0.087 (d) 0.3
  34. 34.4.31 + 1.1 = ? (a) 4.42 (b) 5.51 (c) 5.31 (d) 5.41
  35. 35.7.91 + 5.6 = ? (a) 13.61 (b) 13.41 (c) 8.47 (d) 13.51
  36. 36.7.58 + 1.2 = ? (a) 8.88 (b) 8.68 (c) 7.7 (d) 8.78
  37. 37.Which is the smallest: 0.042, 0.678, 0.7, 0.77? (a) 0.042 (b) 0.678 (c) 0.7 (d) 0.77
  38. 38.3.83 + 9.7 = ? (a) 13.43 (b) 4.8 (c) 13.53 (d) 13.63
  39. 39.Which is the greatest: 0.37, 0.257, 0.3, 0.066? (a) 0.37 (b) 0.257 (c) 0.3 (d) 0.066
  40. 40.2.05 + 4.1 = ? (a) 2.46 (b) 6.15 (c) 6.25 (d) 6.05

Answer key

  1. 18.61
  2. 11.21
  3. 14.58
  4. 0.021
  5. 18.93
  6. 5
  7. 10.14
  8. 6.15
  9. 14.15
  10. 10.56
  11. 5
  12. 16.29
  13. 0.24
  14. 8.59
  15. 9.92
  16. 50
  17. 0.004
  18. 0.02
  19. 20
  20. 0.9
  21. 8.08
  22. 0.072
  23. 0.039
  24. 0.25
  25. 0.083
  26. 0.25
  27. 9.56
  28. 11.31
  29. 7.05
  30. 0.085
  31. 8.78
  32. 14.81
  33. 0.087
  34. 5.41
  35. 13.51
  36. 8.78
  37. 0.042
  38. 13.53
  39. 0.37
  40. 6.15

Free maths olympiad lessons, practice and worksheets at talentjr.in/maths-olympiad