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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 549 · 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. 1.1.53 + 5.6 = ? (a) 7.23 (b) 7.03 (c) 2.09 (d) 7.13
  2. 2.Which is the smallest: 0.72, 0.041, 0.7, 0.632? (a) 0.72 (b) 0.041 (c) 0.7 (d) 0.632
  3. 3.What is the value of the digit 4 in 48.569? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  4. 4.What is the value of the digit 4 in 16.354? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  5. 5.Which is the smallest: 0.49, 0.4, 0.348, 0.038? (a) 0.49 (b) 0.4 (c) 0.348 (d) 0.038
  6. 6.7.85 + 8.7 = ? (a) 16.45 (b) 16.55 (c) 8.72 (d) 16.65
  7. 7.4.87 + 9.1 = ? (a) 14.07 (b) 5.78 (c) 13.97 (d) 13.87
  8. 8.What is the value of the digit 2 in 57.248? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  9. 9.What is the value of the digit 5 in 53.648? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  10. 10.What is the value of the digit 4 in 45.136? (a) 4 (b) 0.04 (c) 40 (d) 0.4
  11. 11.Which is the greatest: 0.48, 0.067, 0.349, 0.4? (a) 0.48 (b) 0.067 (c) 0.349 (d) 0.4
  12. 12.1.21 + 9.4 = ? (a) 2.15 (b) 10.71 (c) 10.61 (d) 10.51
  13. 13.2.53 + 2.5 = ? (a) 5.13 (b) 4.93 (c) 5.03 (d) 2.78
  14. 14.Which is the smallest: 0.23, 0.2, 0.091, 0.185? (a) 0.23 (b) 0.2 (c) 0.091 (d) 0.185
  15. 15.5.06 + 3.3 = ? (a) 5.39 (b) 8.26 (c) 8.36 (d) 8.46
  16. 16.9.18 + 3.9 = ? (a) 12.98 (b) 13.18 (c) 13.08 (d) 9.57
  17. 17.3.71 + 1.5 = ? (a) 3.86 (b) 5.11 (c) 5.21 (d) 5.31
  18. 18.What is the value of the digit 1 in 13.752? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  19. 19.8.26 + 2.1 = ? (a) 10.36 (b) 10.46 (c) 8.47 (d) 10.26
  20. 20.1.06 + 6.2 = ? (a) 7.26 (b) 1.68 (c) 7.16 (d) 7.36
  21. 21.3.67 + 2.9 = ? (a) 6.47 (b) 3.96 (c) 6.57 (d) 6.67
  22. 22.3.48 + 1.9 = ? (a) 5.48 (b) 5.38 (c) 5.28 (d) 3.67
  23. 23.5.96 + 2.3 = ? (a) 8.16 (b) 8.36 (c) 6.19 (d) 8.26
  24. 24.What is the value of the digit 5 in 94.581? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  25. 25.1.65 + 4.5 = ? (a) 6.15 (b) 2.1 (c) 6.25 (d) 6.05
  26. 26.Which is the smallest: 0.7, 0.072, 0.664, 0.78? (a) 0.7 (b) 0.072 (c) 0.664 (d) 0.78
  27. 27.1.29 + 7.8 = ? (a) 2.07 (b) 9.19 (c) 8.99 (d) 9.09
  28. 28.3.74 + 4.9 = ? (a) 4.23 (b) 8.64 (c) 8.54 (d) 8.74
  29. 29.What is the value of the digit 8 in 89.431? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  30. 30.What is the value of the digit 4 in 64.952? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  31. 31.Which is the greatest: 0.57, 0.5, 0.468, 0.032? (a) 0.57 (b) 0.5 (c) 0.468 (d) 0.032
  32. 32.4.48 + 7.4 = ? (a) 11.78 (b) 11.98 (c) 5.22 (d) 11.88
  33. 33.Which is the greatest: 0.089, 0.66, 0.6, 0.541? (a) 0.089 (b) 0.66 (c) 0.6 (d) 0.541
  34. 34.Which is the smallest: 0.558, 0.6, 0.65, 0.079? (a) 0.558 (b) 0.6 (c) 0.65 (d) 0.079
  35. 35.4.56 + 5.5 = ? (a) 10.16 (b) 5.11 (c) 10.06 (d) 9.96
  36. 36.4.48 + 1.8 = ? (a) 6.28 (b) 6.38 (c) 4.66 (d) 6.18
  37. 37.9.41 + 9.1 = ? (a) 18.51 (b) 18.41 (c) 18.61 (d) 10.32
  38. 38.Which is the smallest: 0.682, 0.7, 0.077, 0.75? (a) 0.682 (b) 0.7 (c) 0.077 (d) 0.75
  39. 39.What is the value of the digit 8 in 19.872? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8
  40. 40.What is the value of the digit 5 in 15.268? (a) 50 (b) 0.05 (c) 0.5 (d) 5

Answer key

  1. 7.13
  2. 0.041
  3. 40
  4. 0.004
  5. 0.038
  6. 16.55
  7. 13.97
  8. 0.2
  9. 50
  10. 40
  11. 0.48
  12. 10.61
  13. 5.03
  14. 0.091
  15. 8.36
  16. 13.08
  17. 5.21
  18. 10
  19. 10.36
  20. 7.26
  21. 6.57
  22. 5.38
  23. 8.26
  24. 0.5
  25. 6.15
  26. 0.072
  27. 9.09
  28. 8.64
  29. 80
  30. 4
  31. 0.57
  32. 11.88
  33. 0.66
  34. 0.079
  35. 10.06
  36. 6.28
  37. 18.51
  38. 0.077
  39. 0.8
  40. 5

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