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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 399 · 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. 1.2.01 + 7.1 = ? (a) 2.72 (b) 9.01 (c) 9.11 (d) 9.21
  2. 2.Which is the greatest: 0.6, 0.63, 0.567, 0.081? (a) 0.6 (b) 0.63 (c) 0.567 (d) 0.081
  3. 3.What is the value of the digit 3 in 51.396? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  4. 4.7.17 + 2.2 = ? (a) 7.39 (b) 9.47 (c) 9.27 (d) 9.37
  5. 5.5.11 + 2.9 = ? (a) 7.91 (b) 5.4 (c) 8.11 (d) 8.01
  6. 6.Which is the greatest: 0.43, 0.364, 0.045, 0.4? (a) 0.43 (b) 0.364 (c) 0.045 (d) 0.4
  7. 7.5.44 + 2.3 = ? (a) 7.64 (b) 5.67 (c) 7.74 (d) 7.84
  8. 8.What is the value of the digit 6 in 65.237? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  9. 9.7.33 + 8.3 = ? (a) 15.53 (b) 15.63 (c) 15.73 (d) 8.16
  10. 10.6.26 + 1.4 = ? (a) 7.76 (b) 7.56 (c) 7.66 (d) 6.4
  11. 11.Which is the greatest: 0.648, 0.7, 0.046, 0.73? (a) 0.648 (b) 0.7 (c) 0.046 (d) 0.73
  12. 12.Which is the greatest: 0.517, 0.66, 0.087, 0.6? (a) 0.517 (b) 0.66 (c) 0.087 (d) 0.6
  13. 13.1.96 + 9.3 = ? (a) 2.89 (b) 11.36 (c) 11.16 (d) 11.26
  14. 14.Which is the greatest: 0.073, 0.448, 0.5, 0.56? (a) 0.073 (b) 0.448 (c) 0.5 (d) 0.56
  15. 15.Which is the greatest: 0.71, 0.041, 0.7, 0.622? (a) 0.71 (b) 0.041 (c) 0.7 (d) 0.622
  16. 16.1.96 + 7.1 = ? (a) 8.96 (b) 9.16 (c) 2.67 (d) 9.06
  17. 17.2.06 + 5.5 = ? (a) 7.56 (b) 2.61 (c) 7.66 (d) 7.46
  18. 18.What is the value of the digit 6 in 24.963? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  19. 19.Which is the greatest: 0.332, 0.059, 0.4, 0.43? (a) 0.332 (b) 0.059 (c) 0.4 (d) 0.43
  20. 20.What is the value of the digit 2 in 68.132? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  21. 21.What is the value of the digit 6 in 12.693? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  22. 22.What is the value of the digit 9 in 59.641? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  23. 23.1.48 + 3.6 = ? (a) 5.18 (b) 5.08 (c) 4.98 (d) 1.84
  24. 24.What is the value of the digit 4 in 15.748? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  25. 25.1.56 + 7.8 = ? (a) 9.46 (b) 9.26 (c) 9.36 (d) 2.34
  26. 26.7.25 + 3.5 = ? (a) 10.85 (b) 10.75 (c) 7.6 (d) 10.65
  27. 27.5.59 + 9.1 = ? (a) 6.5 (b) 14.79 (c) 14.69 (d) 14.59
  28. 28.3.27 + 3.3 = ? (a) 3.6 (b) 6.57 (c) 6.67 (d) 6.47
  29. 29.What is the value of the digit 4 in 25.493? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  30. 30.Which is the smallest: 0.61, 0.6, 0.054, 0.575? (a) 0.61 (b) 0.6 (c) 0.054 (d) 0.575
  31. 31.1.21 + 5.5 = ? (a) 1.76 (b) 6.81 (c) 6.71 (d) 6.61
  32. 32.What is the value of the digit 7 in 79.346? (a) 0.7 (b) 70 (c) 0.07 (d) 7
  33. 33.What is the value of the digit 9 in 82.179? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  34. 34.What is the value of the digit 2 in 62.749? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  35. 35.2.87 + 2.9 = ? (a) 5.67 (b) 3.16 (c) 5.77 (d) 5.87
  36. 36.What is the value of the digit 2 in 23.417? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  37. 37.9.66 + 8.4 = ? (a) 10.5 (b) 18.16 (c) 18.06 (d) 17.96
  38. 38.4.98 + 4.9 = ? (a) 9.98 (b) 9.78 (c) 9.88 (d) 5.47
  39. 39.What is the value of the digit 5 in 53.724? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  40. 40.Which is the smallest: 0.422, 0.53, 0.012, 0.5? (a) 0.422 (b) 0.53 (c) 0.012 (d) 0.5

Answer key

  1. 9.11
  2. 0.63
  3. 0.3
  4. 9.37
  5. 8.01
  6. 0.43
  7. 7.74
  8. 60
  9. 15.63
  10. 7.66
  11. 0.73
  12. 0.66
  13. 11.26
  14. 0.56
  15. 0.71
  16. 9.06
  17. 7.56
  18. 0.06
  19. 0.43
  20. 0.002
  21. 0.6
  22. 9
  23. 5.08
  24. 0.04
  25. 9.36
  26. 10.75
  27. 14.69
  28. 6.57
  29. 0.4
  30. 0.054
  31. 6.71
  32. 70
  33. 0.009
  34. 2
  35. 5.77
  36. 20
  37. 18.06
  38. 9.88
  39. 50
  40. 0.012

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