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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 400 · 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.Which is the greatest: 0.167, 0.039, 0.2, 0.23? (a) 0.167 (b) 0.039 (c) 0.2 (d) 0.23
  2. 2.What is the value of the digit 1 in 84.216? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  3. 3.What is the value of the digit 1 in 19.586? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  4. 4.1.23 + 9.8 = ? (a) 2.21 (b) 10.93 (c) 11.13 (d) 11.03
  5. 5.5.62 + 9.4 = ? (a) 15.12 (b) 6.56 (c) 14.92 (d) 15.02
  6. 6.8.05 + 8.9 = ? (a) 17.05 (b) 8.94 (c) 16.95 (d) 16.85
  7. 7.What is the value of the digit 5 in 16.523? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  8. 8.1.73 + 3.1 = ? (a) 4.73 (b) 4.93 (c) 4.83 (d) 2.04
  9. 9.9.83 + 5.5 = ? (a) 15.33 (b) 15.43 (c) 10.38 (d) 15.23
  10. 10.What is the value of the digit 8 in 12.958? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  11. 11.Which is the greatest: 0.22, 0.034, 0.166, 0.2? (a) 0.22 (b) 0.034 (c) 0.166 (d) 0.2
  12. 12.What is the value of the digit 5 in 16.543? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  13. 13.2.95 + 1.8 = ? (a) 4.75 (b) 4.85 (c) 3.13 (d) 4.65
  14. 14.Which is the smallest: 0.71, 0.7, 0.695, 0.062? (a) 0.71 (b) 0.7 (c) 0.695 (d) 0.062
  15. 15.What is the value of the digit 6 in 95.163? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  16. 16.Which is the greatest: 0.45, 0.396, 0.026, 0.4? (a) 0.45 (b) 0.396 (c) 0.026 (d) 0.4
  17. 17.Which is the greatest: 0.6, 0.63, 0.552, 0.018? (a) 0.6 (b) 0.63 (c) 0.552 (d) 0.018
  18. 18.What is the value of the digit 7 in 47.386? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  19. 19.7.05 + 6.3 = ? (a) 13.35 (b) 7.68 (c) 13.45 (d) 13.25
  20. 20.What is the value of the digit 3 in 34.927? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  21. 21.What is the value of the digit 2 in 95.261? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  22. 22.What is the value of the digit 3 in 85.369? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  23. 23.Which is the smallest: 0.7, 0.041, 0.78, 0.633? (a) 0.7 (b) 0.041 (c) 0.78 (d) 0.633
  24. 24.What is the value of the digit 8 in 82.345? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  25. 25.8.81 + 3.4 = ? (a) 12.31 (b) 12.11 (c) 9.15 (d) 12.21
  26. 26.What is the value of the digit 8 in 28.751? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  27. 27.What is the value of the digit 8 in 16.238? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  28. 28.What is the value of the digit 7 in 18.957? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  29. 29.Which is the greatest: 0.5, 0.014, 0.459, 0.52? (a) 0.5 (b) 0.014 (c) 0.459 (d) 0.52
  30. 30.Which is the smallest: 0.5, 0.51, 0.436, 0.013? (a) 0.5 (b) 0.51 (c) 0.436 (d) 0.013
  31. 31.3.59 + 2.4 = ? (a) 6.09 (b) 3.83 (c) 5.89 (d) 5.99
  32. 32.6.54 + 4.9 = ? (a) 11.54 (b) 7.03 (c) 11.34 (d) 11.44
  33. 33.Which is the greatest: 0.51, 0.492, 0.032, 0.5? (a) 0.51 (b) 0.492 (c) 0.032 (d) 0.5
  34. 34.What is the value of the digit 6 in 67.519? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  35. 35.9.07 + 5.2 = ? (a) 14.37 (b) 14.17 (c) 9.59 (d) 14.27
  36. 36.Which is the smallest: 0.22, 0.199, 0.029, 0.2? (a) 0.22 (b) 0.199 (c) 0.029 (d) 0.2
  37. 37.What is the value of the digit 9 in 36.719? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  38. 38.Which is the smallest: 0.434, 0.56, 0.043, 0.5? (a) 0.434 (b) 0.56 (c) 0.043 (d) 0.5
  39. 39.Which is the smallest: 0.142, 0.2, 0.075, 0.23? (a) 0.142 (b) 0.2 (c) 0.075 (d) 0.23
  40. 40.Which is the greatest: 0.076, 0.78, 0.7, 0.632? (a) 0.076 (b) 0.78 (c) 0.7 (d) 0.632

Answer key

  1. 0.23
  2. 0.01
  3. 10
  4. 11.03
  5. 15.02
  6. 16.95
  7. 0.5
  8. 4.83
  9. 15.33
  10. 0.008
  11. 0.22
  12. 0.5
  13. 4.75
  14. 0.062
  15. 0.06
  16. 0.45
  17. 0.63
  18. 7
  19. 13.35
  20. 30
  21. 0.2
  22. 0.3
  23. 0.041
  24. 80
  25. 12.21
  26. 8
  27. 0.008
  28. 0.007
  29. 0.52
  30. 0.013
  31. 5.99
  32. 11.44
  33. 0.51
  34. 60
  35. 14.27
  36. 0.029
  37. 0.009
  38. 0.043
  39. 0.075
  40. 0.78

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