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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 751 · 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: 0.5, 0.032, 0.425, 0.56? (a) 0.5 (b) 0.032 (c) 0.425 (d) 0.56
  2. 2.3.29 + 7.1 = ? (a) 4 (b) 10.39 (c) 10.29 (d) 10.49
  3. 3.What is the value of the digit 2 in 51.932? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  4. 4.What is the value of the digit 5 in 97.516? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  5. 5.5.01 + 5.1 = ? (a) 10.21 (b) 10.01 (c) 10.11 (d) 5.52
  6. 6.Which is the smallest: 0.251, 0.39, 0.019, 0.3? (a) 0.251 (b) 0.39 (c) 0.019 (d) 0.3
  7. 7.8.51 + 4.6 = ? (a) 13.01 (b) 8.97 (c) 13.11 (d) 13.21
  8. 8.8.65 + 6.1 = ? (a) 14.85 (b) 9.26 (c) 14.65 (d) 14.75
  9. 9.What is the value of the digit 4 in 53.498? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  10. 10.What is the value of the digit 1 in 41.372? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  11. 11.7.01 + 6.3 = ? (a) 13.21 (b) 13.41 (c) 13.31 (d) 7.64
  12. 12.1.26 + 1.4 = ? (a) 2.76 (b) 1.4 (c) 2.66 (d) 2.56
  13. 13.1.44 + 5.8 = ? (a) 7.34 (b) 2.02 (c) 7.24 (d) 7.14
  14. 14.9.23 + 3.5 = ? (a) 12.73 (b) 12.63 (c) 9.58 (d) 12.83
  15. 15.Which is the greatest: 0.41, 0.323, 0.4, 0.096? (a) 0.41 (b) 0.323 (c) 0.4 (d) 0.096
  16. 16.4.81 + 2.6 = ? (a) 5.07 (b) 7.51 (c) 7.41 (d) 7.31
  17. 17.7.19 + 9.7 = ? (a) 16.79 (b) 8.16 (c) 16.99 (d) 16.89
  18. 18.What is the value of the digit 2 in 47.128? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  19. 19.9.71 + 2.3 = ? (a) 12.11 (b) 11.91 (c) 9.94 (d) 12.01
  20. 20.What is the value of the digit 5 in 63.594? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  21. 21.1.67 + 2.6 = ? (a) 1.93 (b) 4.27 (c) 4.17 (d) 4.37
  22. 22.What is the value of the digit 8 in 85.964? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  23. 23.What is the value of the digit 2 in 39.452? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  24. 24.1.48 + 5.2 = ? (a) 2 (b) 6.78 (c) 6.68 (d) 6.58
  25. 25.What is the value of the digit 3 in 83.192? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  26. 26.What is the value of the digit 7 in 76.423? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  27. 27.Which is the smallest: 0.2, 0.186, 0.24, 0.025? (a) 0.2 (b) 0.186 (c) 0.24 (d) 0.025
  28. 28.What is the value of the digit 5 in 19.825? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  29. 29.4.95 + 3.1 = ? (a) 5.26 (b) 8.15 (c) 8.05 (d) 7.95
  30. 30.What is the value of the digit 1 in 45.713? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  31. 31.What is the value of the digit 7 in 73.954? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  32. 32.What is the value of the digit 4 in 37.254? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  33. 33.Which is the smallest: 0.582, 0.65, 0.6, 0.031? (a) 0.582 (b) 0.65 (c) 0.6 (d) 0.031
  34. 34.What is the value of the digit 7 in 31.726? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  35. 35.2.54 + 8.3 = ? (a) 3.37 (b) 10.74 (c) 10.84 (d) 10.94
  36. 36.What is the value of the digit 6 in 35.769? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  37. 37.What is the value of the digit 1 in 26.419? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  38. 38.9.72 + 2.9 = ? (a) 12.72 (b) 10.01 (c) 12.62 (d) 12.52
  39. 39.8.02 + 9.5 = ? (a) 17.62 (b) 17.52 (c) 17.42 (d) 8.97
  40. 40.Which is the greatest: 0.42, 0.354, 0.4, 0.024? (a) 0.42 (b) 0.354 (c) 0.4 (d) 0.024

Answer key

  1. 0.56
  2. 10.39
  3. 0.002
  4. 0.5
  5. 10.11
  6. 0.019
  7. 13.11
  8. 14.75
  9. 0.4
  10. 1
  11. 13.31
  12. 2.66
  13. 7.24
  14. 12.73
  15. 0.41
  16. 7.41
  17. 16.89
  18. 0.02
  19. 12.01
  20. 0.5
  21. 4.27
  22. 80
  23. 0.002
  24. 6.68
  25. 3
  26. 70
  27. 0.025
  28. 0.005
  29. 8.05
  30. 0.01
  31. 70
  32. 0.004
  33. 0.031
  34. 0.7
  35. 10.84
  36. 0.06
  37. 0.01
  38. 12.62
  39. 17.52
  40. 0.42

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