← Decimals and place value lesson New set →

Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 15 · 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. 1.8.21 + 1.7 = ? (a) 8.38 (b) 9.91 (c) 9.81 (d) 10.01
  2. 2.8.36 + 5.9 = ? (a) 14.36 (b) 14.26 (c) 8.95 (d) 14.16
  3. 3.2.79 + 7.4 = ? (a) 10.09 (b) 3.53 (c) 10.29 (d) 10.19
  4. 4.Which is the smallest: 0.6, 0.576, 0.053, 0.64? (a) 0.6 (b) 0.576 (c) 0.053 (d) 0.64
  5. 5.3.79 + 9.4 = ? (a) 13.09 (b) 13.19 (c) 4.73 (d) 13.29
  6. 6.7.85 + 2.8 = ? (a) 10.65 (b) 8.13 (c) 10.75 (d) 10.55
  7. 7.2.35 + 6.8 = ? (a) 3.03 (b) 9.05 (c) 9.15 (d) 9.25
  8. 8.Which is the greatest: 0.551, 0.64, 0.6, 0.032? (a) 0.551 (b) 0.64 (c) 0.6 (d) 0.032
  9. 9.What is the value of the digit 9 in 43.679? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  10. 10.What is the value of the digit 2 in 26.194? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  11. 11.Which is the greatest: 0.2, 0.024, 0.182, 0.21? (a) 0.2 (b) 0.024 (c) 0.182 (d) 0.21
  12. 12.What is the value of the digit 5 in 25.641? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  13. 13.What is the value of the digit 3 in 37.926? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  14. 14.What is the value of the digit 8 in 81.372? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  15. 15.6.23 + 1.6 = ? (a) 6.39 (b) 7.83 (c) 7.93 (d) 7.73
  16. 16.What is the value of the digit 5 in 91.753? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  17. 17.Which is the greatest: 0.075, 0.8, 0.786, 0.88? (a) 0.075 (b) 0.8 (c) 0.786 (d) 0.88
  18. 18.What is the value of the digit 9 in 96.315? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  19. 19.What is the value of the digit 2 in 92.634? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  20. 20.2.34 + 3.5 = ? (a) 5.84 (b) 2.69 (c) 5.74 (d) 5.94
  21. 21.Which is the smallest: 0.035, 0.2, 0.129, 0.26? (a) 0.035 (b) 0.2 (c) 0.129 (d) 0.26
  22. 22.What is the value of the digit 7 in 68.247? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  23. 23.Which is the greatest: 0.012, 0.56, 0.5, 0.443? (a) 0.012 (b) 0.56 (c) 0.5 (d) 0.443
  24. 24.2.22 + 2.9 = ? (a) 5.02 (b) 2.51 (c) 5.12 (d) 5.22
  25. 25.3.11 + 8.9 = ? (a) 11.91 (b) 12.11 (c) 4 (d) 12.01
  26. 26.What is the value of the digit 7 in 97.243? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  27. 27.9.68 + 2.2 = ? (a) 11.88 (b) 11.78 (c) 11.98 (d) 9.9
  28. 28.Which is the smallest: 0.022, 0.2, 0.22, 0.119? (a) 0.022 (b) 0.2 (c) 0.22 (d) 0.119
  29. 29.Which is the smallest: 0.073, 0.8, 0.787, 0.86? (a) 0.073 (b) 0.8 (c) 0.787 (d) 0.86
  30. 30.9.84 + 6.7 = ? (a) 16.64 (b) 10.51 (c) 16.54 (d) 16.44
  31. 31.Which is the greatest: 0.328, 0.4, 0.42, 0.065? (a) 0.328 (b) 0.4 (c) 0.42 (d) 0.065
  32. 32.What is the value of the digit 9 in 94.635? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  33. 33.Which is the smallest: 0.056, 0.222, 0.3, 0.36? (a) 0.056 (b) 0.222 (c) 0.3 (d) 0.36
  34. 34.4.23 + 7.3 = ? (a) 11.53 (b) 11.63 (c) 4.96 (d) 11.43
  35. 35.What is the value of the digit 1 in 28.714? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  36. 36.9.25 + 4.6 = ? (a) 13.85 (b) 9.71 (c) 13.95 (d) 13.75
  37. 37.4.08 + 4.1 = ? (a) 8.28 (b) 4.49 (c) 8.18 (d) 8.08
  38. 38.What is the value of the digit 4 in 63.941? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  39. 39.Which is the greatest: 0.288, 0.37, 0.3, 0.042? (a) 0.288 (b) 0.37 (c) 0.3 (d) 0.042
  40. 40.What is the value of the digit 5 in 78.153? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005

Answer key

  1. 9.91
  2. 14.26
  3. 10.19
  4. 0.053
  5. 13.19
  6. 10.65
  7. 9.15
  8. 0.64
  9. 0.009
  10. 20
  11. 0.21
  12. 5
  13. 30
  14. 80
  15. 7.83
  16. 0.05
  17. 0.88
  18. 90
  19. 2
  20. 5.84
  21. 0.035
  22. 0.007
  23. 0.56
  24. 5.12
  25. 12.01
  26. 7
  27. 11.88
  28. 0.022
  29. 0.073
  30. 16.54
  31. 0.42
  32. 90
  33. 0.056
  34. 11.53
  35. 0.01
  36. 13.85
  37. 8.18
  38. 0.04
  39. 0.37
  40. 0.05

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