← Decimals and place value lesson New set →

Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 23 · 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. 1.2.94 + 9.8 = ? (a) 3.92 (b) 12.84 (c) 12.64 (d) 12.74
  2. 2.9.02 + 2.4 = ? (a) 11.52 (b) 9.26 (c) 11.32 (d) 11.42
  3. 3.7.64 + 5.1 = ? (a) 12.64 (b) 12.74 (c) 8.15 (d) 12.84
  4. 4.Which is the smallest: 0.439, 0.5, 0.55, 0.057? (a) 0.439 (b) 0.5 (c) 0.55 (d) 0.057
  5. 5.4.98 + 5.5 = ? (a) 10.58 (b) 5.53 (c) 10.38 (d) 10.48
  6. 6.9.64 + 3.9 = ? (a) 10.03 (b) 13.64 (c) 13.44 (d) 13.54
  7. 7.Which is the smallest: 0.547, 0.64, 0.6, 0.096? (a) 0.547 (b) 0.64 (c) 0.6 (d) 0.096
  8. 8.Which is the greatest: 0.5, 0.424, 0.58, 0.081? (a) 0.5 (b) 0.424 (c) 0.58 (d) 0.081
  9. 9.Which is the smallest: 0.5, 0.58, 0.068, 0.447? (a) 0.5 (b) 0.58 (c) 0.068 (d) 0.447
  10. 10.5.61 + 6.1 = ? (a) 6.22 (b) 11.71 (c) 11.61 (d) 11.81
  11. 11.What is the value of the digit 7 in 86.127? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  12. 12.Which is the smallest: 0.617, 0.74, 0.087, 0.7? (a) 0.617 (b) 0.74 (c) 0.087 (d) 0.7
  13. 13.Which is the greatest: 0.8, 0.026, 0.83, 0.787? (a) 0.8 (b) 0.026 (c) 0.83 (d) 0.787
  14. 14.Which is the greatest: 0.476, 0.036, 0.5, 0.57? (a) 0.476 (b) 0.036 (c) 0.5 (d) 0.57
  15. 15.What is the value of the digit 8 in 12.938? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  16. 16.What is the value of the digit 4 in 81.647? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  17. 17.What is the value of the digit 1 in 73.261? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  18. 18.3.72 + 1.6 = ? (a) 3.88 (b) 5.22 (c) 5.32 (d) 5.42
  19. 19.Which is the greatest: 0.015, 0.72, 0.7, 0.665? (a) 0.015 (b) 0.72 (c) 0.7 (d) 0.665
  20. 20.What is the value of the digit 8 in 68.947? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  21. 21.6.46 + 5.5 = ? (a) 11.86 (b) 11.96 (c) 12.06 (d) 7.01
  22. 22.Which is the smallest: 0.036, 0.5, 0.58, 0.494? (a) 0.036 (b) 0.5 (c) 0.58 (d) 0.494
  23. 23.8.96 + 9.1 = ? (a) 9.87 (b) 18.06 (c) 17.96 (d) 18.16
  24. 24.Which is the smallest: 0.025, 0.582, 0.69, 0.6? (a) 0.025 (b) 0.582 (c) 0.69 (d) 0.6
  25. 25.What is the value of the digit 8 in 56.813? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8
  26. 26.What is the value of the digit 2 in 13.428? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  27. 27.Which is the smallest: 0.55, 0.447, 0.017, 0.5? (a) 0.55 (b) 0.447 (c) 0.017 (d) 0.5
  28. 28.What is the value of the digit 5 in 69.725? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  29. 29.8.07 + 6.3 = ? (a) 14.47 (b) 14.27 (c) 14.37 (d) 8.7
  30. 30.Which is the greatest: 0.324, 0.48, 0.073, 0.4? (a) 0.324 (b) 0.48 (c) 0.073 (d) 0.4
  31. 31.7.81 + 2.5 = ? (a) 10.21 (b) 10.41 (c) 8.06 (d) 10.31
  32. 32.8.77 + 5.1 = ? (a) 13.77 (b) 13.97 (c) 9.28 (d) 13.87
  33. 33.What is the value of the digit 1 in 76.241? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  34. 34.Which is the smallest: 0.4, 0.41, 0.096, 0.385? (a) 0.4 (b) 0.41 (c) 0.096 (d) 0.385
  35. 35.8.07 + 1.2 = ? (a) 9.17 (b) 9.37 (c) 9.27 (d) 8.19
  36. 36.3.54 + 6.4 = ? (a) 9.84 (b) 4.18 (c) 9.94 (d) 10.04
  37. 37.What is the value of the digit 7 in 59.173? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  38. 38.What is the value of the digit 6 in 86.479? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  39. 39.5.81 + 1.2 = ? (a) 7.11 (b) 7.01 (c) 6.91 (d) 5.93
  40. 40.Which is the greatest: 0.772, 0.8, 0.082, 0.86? (a) 0.772 (b) 0.8 (c) 0.082 (d) 0.86

Answer key

  1. 12.74
  2. 11.42
  3. 12.74
  4. 0.057
  5. 10.48
  6. 13.54
  7. 0.096
  8. 0.58
  9. 0.068
  10. 11.71
  11. 0.007
  12. 0.087
  13. 0.83
  14. 0.57
  15. 0.008
  16. 0.04
  17. 0.001
  18. 5.32
  19. 0.72
  20. 8
  21. 11.96
  22. 0.036
  23. 18.06
  24. 0.025
  25. 0.8
  26. 0.02
  27. 0.017
  28. 0.005
  29. 14.37
  30. 0.48
  31. 10.31
  32. 13.87
  33. 0.001
  34. 0.096
  35. 9.27
  36. 9.94
  37. 0.07
  38. 6
  39. 7.01
  40. 0.86

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