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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 47 · 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. 1.8.13 + 6.2 = ? (a) 14.43 (b) 14.23 (c) 8.75 (d) 14.33
  2. 2.What is the value of the digit 3 in 32.789? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  3. 3.7.42 + 4.2 = ? (a) 11.52 (b) 11.72 (c) 11.62 (d) 7.84
  4. 4.3.47 + 5.2 = ? (a) 8.57 (b) 8.77 (c) 8.67 (d) 3.99
  5. 5.What is the value of the digit 4 in 42.386? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  6. 6.Which is the smallest: 0.176, 0.22, 0.023, 0.2? (a) 0.176 (b) 0.22 (c) 0.023 (d) 0.2
  7. 7.1.18 + 8.3 = ? (a) 2.01 (b) 9.48 (c) 9.58 (d) 9.38
  8. 8.4.19 + 1.6 = ? (a) 5.69 (b) 5.79 (c) 5.89 (d) 4.35
  9. 9.Which is the greatest: 0.033, 0.173, 0.29, 0.2? (a) 0.033 (b) 0.173 (c) 0.29 (d) 0.2
  10. 10.Which is the greatest: 0.087, 0.2, 0.25, 0.147? (a) 0.087 (b) 0.2 (c) 0.25 (d) 0.147
  11. 11.What is the value of the digit 5 in 59.247? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  12. 12.Which is the smallest: 0.074, 0.517, 0.61, 0.6? (a) 0.074 (b) 0.517 (c) 0.61 (d) 0.6
  13. 13.What is the value of the digit 2 in 62.984? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  14. 14.What is the value of the digit 1 in 31.674? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  15. 15.3.42 + 3.8 = ? (a) 7.22 (b) 7.32 (c) 3.8 (d) 7.12
  16. 16.Which is the greatest: 0.2, 0.115, 0.28, 0.011? (a) 0.2 (b) 0.115 (c) 0.28 (d) 0.011
  17. 17.3.25 + 2.4 = ? (a) 5.75 (b) 5.65 (c) 3.49 (d) 5.55
  18. 18.6.93 + 1.3 = ? (a) 8.23 (b) 7.06 (c) 8.13 (d) 8.33
  19. 19.What is the value of the digit 3 in 42.387? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  20. 20.What is the value of the digit 9 in 39.852? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  21. 21.Which is the smallest: 0.533, 0.056, 0.6, 0.66? (a) 0.533 (b) 0.056 (c) 0.6 (d) 0.66
  22. 22.Which is the greatest: 0.7, 0.78, 0.667, 0.085? (a) 0.7 (b) 0.78 (c) 0.667 (d) 0.085
  23. 23.Which is the greatest: 0.4, 0.043, 0.314, 0.44? (a) 0.4 (b) 0.043 (c) 0.314 (d) 0.44
  24. 24.What is the value of the digit 6 in 67.529? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  25. 25.8.66 + 7.6 = ? (a) 16.36 (b) 16.16 (c) 16.26 (d) 9.42
  26. 26.What is the value of the digit 8 in 61.938? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  27. 27.Which is the greatest: 0.014, 0.3, 0.223, 0.31? (a) 0.014 (b) 0.3 (c) 0.223 (d) 0.31
  28. 28.Which is the greatest: 0.075, 0.73, 0.7, 0.632? (a) 0.075 (b) 0.73 (c) 0.7 (d) 0.632
  29. 29.What is the value of the digit 1 in 58.127? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  30. 30.2.81 + 3.1 = ? (a) 5.81 (b) 5.91 (c) 6.01 (d) 3.12
  31. 31.3.76 + 8.9 = ? (a) 12.66 (b) 12.76 (c) 12.56 (d) 4.65
  32. 32.8.32 + 9.6 = ? (a) 18.02 (b) 17.92 (c) 9.28 (d) 17.82
  33. 33.What is the value of the digit 8 in 34.857? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  34. 34.7.42 + 8.8 = ? (a) 16.12 (b) 8.3 (c) 16.22 (d) 16.32
  35. 35.9.55 + 7.6 = ? (a) 10.31 (b) 17.25 (c) 17.05 (d) 17.15
  36. 36.What is the value of the digit 9 in 95.631? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  37. 37.What is the value of the digit 5 in 78.659? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  38. 38.Which is the greatest: 0.011, 0.84, 0.8, 0.713? (a) 0.011 (b) 0.84 (c) 0.8 (d) 0.713
  39. 39.What is the value of the digit 5 in 54.928? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  40. 40.What is the value of the digit 3 in 45.312? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003

Answer key

  1. 14.33
  2. 30
  3. 11.62
  4. 8.67
  5. 40
  6. 0.023
  7. 9.48
  8. 5.79
  9. 0.29
  10. 0.25
  11. 50
  12. 0.074
  13. 2
  14. 1
  15. 7.22
  16. 0.28
  17. 5.65
  18. 8.23
  19. 0.3
  20. 9
  21. 0.056
  22. 0.78
  23. 0.44
  24. 60
  25. 16.26
  26. 0.008
  27. 0.31
  28. 0.73
  29. 0.1
  30. 5.91
  31. 12.66
  32. 17.92
  33. 0.8
  34. 16.22
  35. 17.15
  36. 90
  37. 0.05
  38. 0.84
  39. 50
  40. 0.3

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