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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 815 · 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. 1.1.15 + 4.1 = ? (a) 5.15 (b) 1.56 (c) 5.25 (d) 5.35
  2. 2.Which is the greatest: 0.31, 0.3, 0.214, 0.079? (a) 0.31 (b) 0.3 (c) 0.214 (d) 0.079
  3. 3.What is the value of the digit 3 in 42.318? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  4. 4.What is the value of the digit 9 in 12.963? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  5. 5.Which is the greatest: 0.683, 0.7, 0.034, 0.76? (a) 0.683 (b) 0.7 (c) 0.034 (d) 0.76
  6. 6.What is the value of the digit 3 in 63.482? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  7. 7.What is the value of the digit 9 in 87.129? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  8. 8.What is the value of the digit 8 in 56.982? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  9. 9.7.52 + 9.1 = ? (a) 16.62 (b) 16.52 (c) 16.72 (d) 8.43
  10. 10.4.05 + 7.6 = ? (a) 4.81 (b) 11.75 (c) 11.55 (d) 11.65
  11. 11.Which is the greatest: 0.35, 0.3, 0.038, 0.246? (a) 0.35 (b) 0.3 (c) 0.038 (d) 0.246
  12. 12.What is the value of the digit 8 in 84.951? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  13. 13.Which is the greatest: 0.072, 0.75, 0.633, 0.7? (a) 0.072 (b) 0.75 (c) 0.633 (d) 0.7
  14. 14.What is the value of the digit 8 in 38.269? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  15. 15.Which is the smallest: 0.014, 0.3, 0.217, 0.38? (a) 0.014 (b) 0.3 (c) 0.217 (d) 0.38
  16. 16.What is the value of the digit 3 in 76.831? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  17. 17.Which is the greatest: 0.2, 0.062, 0.28, 0.181? (a) 0.2 (b) 0.062 (c) 0.28 (d) 0.181
  18. 18.1.54 + 1.9 = ? (a) 1.73 (b) 3.34 (c) 3.54 (d) 3.44
  19. 19.5.88 + 4.6 = ? (a) 6.34 (b) 10.58 (c) 10.48 (d) 10.38
  20. 20.What is the value of the digit 4 in 29.514? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  21. 21.What is the value of the digit 5 in 53.168? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  22. 22.Which is the greatest: 0.039, 0.266, 0.34, 0.3? (a) 0.039 (b) 0.266 (c) 0.34 (d) 0.3
  23. 23.What is the value of the digit 1 in 51.346? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  24. 24.What is the value of the digit 7 in 56.437? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  25. 25.2.61 + 7.4 = ? (a) 3.35 (b) 10.11 (c) 9.91 (d) 10.01
  26. 26.What is the value of the digit 2 in 28.135? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  27. 27.3.27 + 1.7 = ? (a) 3.44 (b) 5.07 (c) 4.87 (d) 4.97
  28. 28.What is the value of the digit 8 in 12.589? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  29. 29.What is the value of the digit 4 in 47.825? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  30. 30.What is the value of the digit 9 in 81.697? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  31. 31.Which is the greatest: 0.714, 0.87, 0.8, 0.083? (a) 0.714 (b) 0.87 (c) 0.8 (d) 0.083
  32. 32.What is the value of the digit 3 in 73.246? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  33. 33.3.39 + 9.8 = ? (a) 13.29 (b) 13.19 (c) 4.37 (d) 13.09
  34. 34.6.86 + 9.9 = ? (a) 16.86 (b) 16.66 (c) 16.76 (d) 7.85
  35. 35.Which is the smallest: 0.3, 0.066, 0.273, 0.38? (a) 0.3 (b) 0.066 (c) 0.273 (d) 0.38
  36. 36.What is the value of the digit 7 in 14.972? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  37. 37.What is the value of the digit 7 in 56.327? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  38. 38.What is the value of the digit 2 in 69.524? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  39. 39.8.51 + 9.1 = ? (a) 17.61 (b) 9.42 (c) 17.51 (d) 17.71
  40. 40.What is the value of the digit 5 in 52.864? (a) 0.5 (b) 50 (c) 5 (d) 0.05

Answer key

  1. 5.25
  2. 0.31
  3. 0.3
  4. 0.9
  5. 0.76
  6. 3
  7. 0.009
  8. 0.08
  9. 16.62
  10. 11.65
  11. 0.35
  12. 80
  13. 0.75
  14. 8
  15. 0.014
  16. 0.03
  17. 0.28
  18. 3.44
  19. 10.48
  20. 0.004
  21. 50
  22. 0.34
  23. 1
  24. 0.007
  25. 10.01
  26. 20
  27. 4.97
  28. 0.08
  29. 40
  30. 0.09
  31. 0.87
  32. 3
  33. 13.19
  34. 16.76
  35. 0.066
  36. 0.07
  37. 0.007
  38. 0.02
  39. 17.61
  40. 50

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