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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 991 · 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. 1.5.15 + 6.5 = ? (a) 5.8 (b) 11.55 (c) 11.75 (d) 11.65
  2. 2.Which is the greatest: 0.514, 0.61, 0.071, 0.6? (a) 0.514 (b) 0.61 (c) 0.071 (d) 0.6
  3. 3.What is the value of the digit 3 in 47.391? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  4. 4.8.71 + 1.9 = ? (a) 10.61 (b) 10.51 (c) 8.9 (d) 10.71
  5. 5.2.14 + 9.1 = ? (a) 11.14 (b) 11.34 (c) 11.24 (d) 3.05
  6. 6.What is the value of the digit 3 in 93.867? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  7. 7.3.83 + 8.3 = ? (a) 12.23 (b) 12.13 (c) 4.66 (d) 12.03
  8. 8.What is the value of the digit 9 in 91.537? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  9. 9.What is the value of the digit 8 in 78.352? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  10. 10.What is the value of the digit 6 in 87.362? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  11. 11.What is the value of the digit 1 in 38.167? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  12. 12.What is the value of the digit 8 in 98.537? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  13. 13.3.63 + 5.1 = ? (a) 4.14 (b) 8.83 (c) 8.63 (d) 8.73
  14. 14.What is the value of the digit 6 in 36.152? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  15. 15.Which is the smallest: 0.62, 0.527, 0.036, 0.6? (a) 0.62 (b) 0.527 (c) 0.036 (d) 0.6
  16. 16.Which is the smallest: 0.8, 0.83, 0.023, 0.766? (a) 0.8 (b) 0.83 (c) 0.023 (d) 0.766
  17. 17.Which is the greatest: 0.378, 0.41, 0.4, 0.058? (a) 0.378 (b) 0.41 (c) 0.4 (d) 0.058
  18. 18.Which is the greatest: 0.5, 0.56, 0.423, 0.023? (a) 0.5 (b) 0.56 (c) 0.423 (d) 0.023
  19. 19.4.95 + 3.2 = ? (a) 8.25 (b) 8.15 (c) 8.05 (d) 5.27
  20. 20.9.67 + 1.2 = ? (a) 10.77 (b) 10.97 (c) 10.87 (d) 9.79
  21. 21.7.07 + 6.4 = ? (a) 13.37 (b) 7.71 (c) 13.47 (d) 13.57
  22. 22.What is the value of the digit 8 in 38.246? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  23. 23.2.74 + 5.9 = ? (a) 8.54 (b) 8.64 (c) 8.74 (d) 3.33
  24. 24.1.76 + 9.8 = ? (a) 11.56 (b) 11.46 (c) 11.66 (d) 2.74
  25. 25.What is the value of the digit 8 in 58.179? (a) 0.08 (b) 0.8 (c) 8 (d) 80
  26. 26.What is the value of the digit 1 in 81.469? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  27. 27.Which is the greatest: 0.2, 0.063, 0.22, 0.177? (a) 0.2 (b) 0.063 (c) 0.22 (d) 0.177
  28. 28.What is the value of the digit 4 in 36.248? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  29. 29.What is the value of the digit 3 in 28.134? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  30. 30.Which is the greatest: 0.3, 0.039, 0.33, 0.246? (a) 0.3 (b) 0.039 (c) 0.33 (d) 0.246
  31. 31.4.96 + 8.7 = ? (a) 13.56 (b) 13.66 (c) 13.76 (d) 5.83
  32. 32.What is the value of the digit 2 in 23.451? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  33. 33.7.53 + 7.1 = ? (a) 14.53 (b) 8.24 (c) 14.63 (d) 14.73
  34. 34.What is the value of the digit 3 in 25.813? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  35. 35.What is the value of the digit 1 in 73.215? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  36. 36.What is the value of the digit 9 in 17.986? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  37. 37.7.31 + 9.6 = ? (a) 17.01 (b) 16.91 (c) 8.27 (d) 16.81
  38. 38.Which is the greatest: 0.67, 0.6, 0.521, 0.032? (a) 0.67 (b) 0.6 (c) 0.521 (d) 0.032
  39. 39.Which is the greatest: 0.155, 0.019, 0.25, 0.2? (a) 0.155 (b) 0.019 (c) 0.25 (d) 0.2
  40. 40.What is the value of the digit 3 in 37.295? (a) 0.03 (b) 0.3 (c) 30 (d) 3

Answer key

  1. 11.65
  2. 0.61
  3. 0.3
  4. 10.61
  5. 11.24
  6. 3
  7. 12.13
  8. 90
  9. 8
  10. 0.06
  11. 0.1
  12. 8
  13. 8.73
  14. 6
  15. 0.036
  16. 0.023
  17. 0.41
  18. 0.56
  19. 8.15
  20. 10.87
  21. 13.47
  22. 8
  23. 8.64
  24. 11.56
  25. 8
  26. 1
  27. 0.22
  28. 0.04
  29. 0.03
  30. 0.33
  31. 13.66
  32. 20
  33. 14.63
  34. 0.003
  35. 0.01
  36. 0.9
  37. 16.91
  38. 0.67
  39. 0.25
  40. 30

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