← Decimals and place value lesson New set →

Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 563 · 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. 1.9.39 + 5.7 = ? (a) 14.99 (b) 15.09 (c) 15.19 (d) 9.96
  2. 2.7.04 + 3.6 = ? (a) 10.54 (b) 10.64 (c) 10.74 (d) 7.4
  3. 3.5.88 + 6.9 = ? (a) 12.78 (b) 12.68 (c) 12.88 (d) 6.57
  4. 4.Which is the smallest: 0.8, 0.85, 0.741, 0.099? (a) 0.8 (b) 0.85 (c) 0.741 (d) 0.099
  5. 5.3.55 + 5.5 = ? (a) 9.15 (b) 9.05 (c) 4.1 (d) 8.95
  6. 6.5.17 + 7.5 = ? (a) 12.57 (b) 12.67 (c) 12.77 (d) 5.92
  7. 7.What is the value of the digit 3 in 19.653? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  8. 8.9.31 + 3.1 = ? (a) 12.41 (b) 12.51 (c) 12.31 (d) 9.62
  9. 9.7.67 + 1.4 = ? (a) 7.81 (b) 9.17 (c) 8.97 (d) 9.07
  10. 10.8.19 + 9.5 = ? (a) 17.59 (b) 17.79 (c) 17.69 (d) 9.14
  11. 11.Which is the greatest: 0.7, 0.014, 0.675, 0.71? (a) 0.7 (b) 0.014 (c) 0.675 (d) 0.71
  12. 12.1.83 + 5.2 = ? (a) 7.03 (b) 6.93 (c) 7.13 (d) 2.35
  13. 13.Which is the smallest: 0.111, 0.25, 0.071, 0.2? (a) 0.111 (b) 0.25 (c) 0.071 (d) 0.2
  14. 14.7.59 + 4.4 = ? (a) 8.03 (b) 11.99 (c) 12.09 (d) 11.89
  15. 15.1.11 + 8.6 = ? (a) 1.97 (b) 9.61 (c) 9.71 (d) 9.81
  16. 16.Which is the smallest: 0.357, 0.035, 0.44, 0.4? (a) 0.357 (b) 0.035 (c) 0.44 (d) 0.4
  17. 17.Which is the smallest: 0.018, 0.21, 0.2, 0.193? (a) 0.018 (b) 0.21 (c) 0.2 (d) 0.193
  18. 18.4.51 + 9.1 = ? (a) 13.61 (b) 5.42 (c) 13.51 (d) 13.71
  19. 19.4.51 + 7.4 = ? (a) 11.91 (b) 5.25 (c) 12.01 (d) 11.81
  20. 20.Which is the greatest: 0.084, 0.6, 0.69, 0.533? (a) 0.084 (b) 0.6 (c) 0.69 (d) 0.533
  21. 21.2.57 + 8.9 = ? (a) 11.57 (b) 11.47 (c) 3.46 (d) 11.37
  22. 22.Which is the greatest: 0.179, 0.21, 0.2, 0.047? (a) 0.179 (b) 0.21 (c) 0.2 (d) 0.047
  23. 23.What is the value of the digit 6 in 51.796? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  24. 24.What is the value of the digit 4 in 68.435? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  25. 25.Which is the smallest: 0.51, 0.487, 0.097, 0.5? (a) 0.51 (b) 0.487 (c) 0.097 (d) 0.5
  26. 26.What is the value of the digit 1 in 17.463? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  27. 27.What is the value of the digit 3 in 94.327? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  28. 28.5.13 + 3.5 = ? (a) 8.63 (b) 8.53 (c) 8.73 (d) 5.48
  29. 29.Which is the greatest: 0.058, 0.48, 0.389, 0.4? (a) 0.058 (b) 0.48 (c) 0.389 (d) 0.4
  30. 30.Which is the smallest: 0.85, 0.8, 0.084, 0.744? (a) 0.85 (b) 0.8 (c) 0.084 (d) 0.744
  31. 31.What is the value of the digit 4 in 82.934? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  32. 32.Which is the greatest: 0.6, 0.62, 0.083, 0.599? (a) 0.6 (b) 0.62 (c) 0.083 (d) 0.599
  33. 33.What is the value of the digit 2 in 25.786? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  34. 34.3.02 + 9.9 = ? (a) 12.92 (b) 12.82 (c) 13.02 (d) 4.01
  35. 35.3.93 + 8.5 = ? (a) 12.43 (b) 12.33 (c) 4.78 (d) 12.53
  36. 36.What is the value of the digit 7 in 29.671? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  37. 37.2.51 + 2.1 = ? (a) 4.61 (b) 4.71 (c) 4.51 (d) 2.72
  38. 38.Which is the greatest: 0.049, 0.548, 0.64, 0.6? (a) 0.049 (b) 0.548 (c) 0.64 (d) 0.6
  39. 39.2.32 + 7.4 = ? (a) 9.62 (b) 9.82 (c) 9.72 (d) 3.06
  40. 40.5.74 + 1.1 = ? (a) 5.85 (b) 6.94 (c) 6.74 (d) 6.84

Answer key

  1. 15.09
  2. 10.64
  3. 12.78
  4. 0.099
  5. 9.05
  6. 12.67
  7. 0.003
  8. 12.41
  9. 9.07
  10. 17.69
  11. 0.71
  12. 7.03
  13. 0.071
  14. 11.99
  15. 9.71
  16. 0.035
  17. 0.018
  18. 13.61
  19. 11.91
  20. 0.69
  21. 11.47
  22. 0.21
  23. 0.006
  24. 0.4
  25. 0.097
  26. 10
  27. 0.3
  28. 8.63
  29. 0.48
  30. 0.084
  31. 0.004
  32. 0.62
  33. 20
  34. 12.92
  35. 12.43
  36. 0.07
  37. 4.61
  38. 0.64
  39. 9.72
  40. 6.84

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