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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 724 · 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.What is the value of the digit 6 in 74.186? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  2. 2.What is the value of the digit 5 in 52.198? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  3. 3.Which is the smallest: 0.089, 0.3, 0.31, 0.248? (a) 0.089 (b) 0.3 (c) 0.31 (d) 0.248
  4. 4.Which is the smallest: 0.29, 0.2, 0.115, 0.043? (a) 0.29 (b) 0.2 (c) 0.115 (d) 0.043
  5. 5.Which is the smallest: 0.28, 0.039, 0.2, 0.185? (a) 0.28 (b) 0.039 (c) 0.2 (d) 0.185
  6. 6.Which is the smallest: 0.62, 0.096, 0.6, 0.554? (a) 0.62 (b) 0.096 (c) 0.6 (d) 0.554
  7. 7.4.71 + 6.2 = ? (a) 11.01 (b) 10.81 (c) 10.91 (d) 5.33
  8. 8.2.59 + 8.5 = ? (a) 3.44 (b) 11.19 (c) 11.09 (d) 10.99
  9. 9.What is the value of the digit 4 in 42.738? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  10. 10.6.51 + 4.3 = ? (a) 6.94 (b) 10.91 (c) 10.81 (d) 10.71
  11. 11.2.81 + 7.1 = ? (a) 3.52 (b) 9.81 (c) 10.01 (d) 9.91
  12. 12.4.07 + 4.3 = ? (a) 8.47 (b) 4.5 (c) 8.37 (d) 8.27
  13. 13.What is the value of the digit 1 in 71.869? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  14. 14.What is the value of the digit 4 in 94.125? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  15. 15.Which is the greatest: 0.88, 0.8, 0.024, 0.772? (a) 0.88 (b) 0.8 (c) 0.024 (d) 0.772
  16. 16.7.52 + 4.6 = ? (a) 12.12 (b) 12.22 (c) 7.98 (d) 12.02
  17. 17.4.08 + 7.3 = ? (a) 11.28 (b) 11.38 (c) 4.81 (d) 11.48
  18. 18.Which is the smallest: 0.51, 0.473, 0.053, 0.5? (a) 0.51 (b) 0.473 (c) 0.053 (d) 0.5
  19. 19.Which is the smallest: 0.664, 0.72, 0.045, 0.7? (a) 0.664 (b) 0.72 (c) 0.045 (d) 0.7
  20. 20.What is the value of the digit 3 in 23.549? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  21. 21.Which is the greatest: 0.55, 0.5, 0.021, 0.453? (a) 0.55 (b) 0.5 (c) 0.021 (d) 0.453
  22. 22.Which is the greatest: 0.5, 0.59, 0.098, 0.481? (a) 0.5 (b) 0.59 (c) 0.098 (d) 0.481
  23. 23.What is the value of the digit 6 in 39.684? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  24. 24.Which is the greatest: 0.522, 0.044, 0.69, 0.6? (a) 0.522 (b) 0.044 (c) 0.69 (d) 0.6
  25. 25.Which is the smallest: 0.2, 0.024, 0.115, 0.29? (a) 0.2 (b) 0.024 (c) 0.115 (d) 0.29
  26. 26.Which is the greatest: 0.5, 0.018, 0.55, 0.465? (a) 0.5 (b) 0.018 (c) 0.55 (d) 0.465
  27. 27.What is the value of the digit 3 in 67.835? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  28. 28.Which is the greatest: 0.43, 0.4, 0.059, 0.372? (a) 0.43 (b) 0.4 (c) 0.059 (d) 0.372
  29. 29.What is the value of the digit 4 in 54.176? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  30. 30.What is the value of the digit 3 in 56.381? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  31. 31.6.04 + 1.6 = ? (a) 6.2 (b) 7.54 (c) 7.64 (d) 7.74
  32. 32.9.02 + 5.4 = ? (a) 14.52 (b) 14.32 (c) 9.56 (d) 14.42
  33. 33.5.11 + 9.7 = ? (a) 6.08 (b) 14.71 (c) 14.81 (d) 14.91
  34. 34.6.74 + 9.3 = ? (a) 7.67 (b) 16.14 (c) 16.04 (d) 15.94
  35. 35.What is the value of the digit 5 in 57.148? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  36. 36.8.45 + 7.7 = ? (a) 9.22 (b) 16.05 (c) 16.25 (d) 16.15
  37. 37.2.61 + 1.6 = ? (a) 2.77 (b) 4.11 (c) 4.21 (d) 4.31
  38. 38.What is the value of the digit 3 in 24.319? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  39. 39.Which is the greatest: 0.5, 0.055, 0.459, 0.51? (a) 0.5 (b) 0.055 (c) 0.459 (d) 0.51
  40. 40.5.46 + 3.7 = ? (a) 9.26 (b) 5.83 (c) 9.06 (d) 9.16

Answer key

  1. 0.006
  2. 50
  3. 0.089
  4. 0.043
  5. 0.039
  6. 0.096
  7. 10.91
  8. 11.09
  9. 40
  10. 10.81
  11. 9.91
  12. 8.37
  13. 1
  14. 4
  15. 0.88
  16. 12.12
  17. 11.38
  18. 0.053
  19. 0.045
  20. 3
  21. 0.55
  22. 0.59
  23. 0.6
  24. 0.69
  25. 0.024
  26. 0.55
  27. 0.03
  28. 0.43
  29. 4
  30. 0.3
  31. 7.64
  32. 14.42
  33. 14.81
  34. 16.04
  35. 50
  36. 16.15
  37. 4.21
  38. 0.3
  39. 0.51
  40. 9.16

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