← Decimals and place value lesson New set →

Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 721 · 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. 1.8.01 + 7.5 = ? (a) 15.61 (b) 8.76 (c) 15.41 (d) 15.51
  2. 2.7.34 + 9.8 = ? (a) 17.24 (b) 17.04 (c) 17.14 (d) 8.32
  3. 3.5.56 + 2.1 = ? (a) 5.77 (b) 7.76 (c) 7.66 (d) 7.56
  4. 4.9.01 + 7.1 = ? (a) 16.01 (b) 16.11 (c) 16.21 (d) 9.72
  5. 5.Which is the smallest: 0.24, 0.2, 0.116, 0.047? (a) 0.24 (b) 0.2 (c) 0.116 (d) 0.047
  6. 6.What is the value of the digit 7 in 42.719? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  7. 7.Which is the greatest: 0.86, 0.8, 0.071, 0.736? (a) 0.86 (b) 0.8 (c) 0.071 (d) 0.736
  8. 8.Which is the greatest: 0.061, 0.515, 0.6, 0.66? (a) 0.061 (b) 0.515 (c) 0.6 (d) 0.66
  9. 9.6.28 + 6.2 = ? (a) 6.9 (b) 12.38 (c) 12.58 (d) 12.48
  10. 10.Which is the greatest: 0.2, 0.28, 0.032, 0.118? (a) 0.2 (b) 0.28 (c) 0.032 (d) 0.118
  11. 11.6.04 + 3.3 = ? (a) 9.24 (b) 9.34 (c) 9.44 (d) 6.37
  12. 12.4.91 + 5.5 = ? (a) 10.41 (b) 5.46 (c) 10.31 (d) 10.51
  13. 13.Which is the greatest: 0.26, 0.2, 0.198, 0.079? (a) 0.26 (b) 0.2 (c) 0.198 (d) 0.079
  14. 14.6.05 + 1.3 = ? (a) 7.25 (b) 6.18 (c) 7.45 (d) 7.35
  15. 15.4.94 + 3.7 = ? (a) 8.64 (b) 5.31 (c) 8.54 (d) 8.74
  16. 16.Which is the greatest: 0.2, 0.25, 0.075, 0.193? (a) 0.2 (b) 0.25 (c) 0.075 (d) 0.193
  17. 17.What is the value of the digit 4 in 91.634? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  18. 18.5.71 + 2.5 = ? (a) 8.11 (b) 8.21 (c) 8.31 (d) 5.96
  19. 19.Which is the greatest: 0.33, 0.054, 0.241, 0.3? (a) 0.33 (b) 0.054 (c) 0.241 (d) 0.3
  20. 20.8.24 + 7.2 = ? (a) 15.54 (b) 15.34 (c) 8.96 (d) 15.44
  21. 21.Which is the smallest: 0.064, 0.39, 0.212, 0.3? (a) 0.064 (b) 0.39 (c) 0.212 (d) 0.3
  22. 22.Which is the greatest: 0.4, 0.41, 0.346, 0.033? (a) 0.4 (b) 0.41 (c) 0.346 (d) 0.033
  23. 23.Which is the greatest: 0.025, 0.34, 0.3, 0.224? (a) 0.025 (b) 0.34 (c) 0.3 (d) 0.224
  24. 24.What is the value of the digit 9 in 91.286? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  25. 25.What is the value of the digit 4 in 82.491? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  26. 26.3.47 + 7.4 = ? (a) 10.97 (b) 4.21 (c) 10.77 (d) 10.87
  27. 27.Which is the greatest: 0.8, 0.093, 0.757, 0.89? (a) 0.8 (b) 0.093 (c) 0.757 (d) 0.89
  28. 28.6.99 + 7.4 = ? (a) 7.73 (b) 14.29 (c) 14.49 (d) 14.39
  29. 29.What is the value of the digit 9 in 25.349? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  30. 30.What is the value of the digit 4 in 54.298? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  31. 31.1.82 + 5.1 = ? (a) 6.92 (b) 6.82 (c) 7.02 (d) 2.33
  32. 32.Which is the greatest: 0.26, 0.048, 0.122, 0.2? (a) 0.26 (b) 0.048 (c) 0.122 (d) 0.2
  33. 33.What is the value of the digit 6 in 63.784? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  34. 34.9.39 + 4.8 = ? (a) 14.09 (b) 14.19 (c) 14.29 (d) 9.87
  35. 35.What is the value of the digit 5 in 34.951? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  36. 36.Which is the smallest: 0.2, 0.034, 0.28, 0.118? (a) 0.2 (b) 0.034 (c) 0.28 (d) 0.118
  37. 37.2.46 + 2.7 = ? (a) 2.73 (b) 5.26 (c) 5.16 (d) 5.06
  38. 38.1.31 + 1.2 = ? (a) 1.43 (b) 2.61 (c) 2.51 (d) 2.41
  39. 39.5.12 + 8.4 = ? (a) 13.42 (b) 13.52 (c) 5.96 (d) 13.62
  40. 40.What is the value of the digit 6 in 56.847? (a) 0.06 (b) 6 (c) 60 (d) 0.6

Answer key

  1. 15.51
  2. 17.14
  3. 7.66
  4. 16.11
  5. 0.047
  6. 0.7
  7. 0.86
  8. 0.66
  9. 12.48
  10. 0.28
  11. 9.34
  12. 10.41
  13. 0.26
  14. 7.35
  15. 8.64
  16. 0.25
  17. 0.004
  18. 8.21
  19. 0.33
  20. 15.44
  21. 0.064
  22. 0.41
  23. 0.34
  24. 90
  25. 0.4
  26. 10.87
  27. 0.89
  28. 14.39
  29. 0.009
  30. 4
  31. 6.92
  32. 0.26
  33. 60
  34. 14.19
  35. 0.05
  36. 0.034
  37. 5.16
  38. 2.51
  39. 13.52
  40. 6

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