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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 46 · 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 7 in 75.198? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  2. 2.5.88 + 1.3 = ? (a) 7.28 (b) 7.18 (c) 6.01 (d) 7.08
  3. 3.What is the value of the digit 9 in 65.189? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  4. 4.Which is the greatest: 0.462, 0.058, 0.5, 0.58? (a) 0.462 (b) 0.058 (c) 0.5 (d) 0.58
  5. 5.5.07 + 4.9 = ? (a) 9.87 (b) 10.07 (c) 9.97 (d) 5.56
  6. 6.6.21 + 5.1 = ? (a) 11.41 (b) 11.31 (c) 11.21 (d) 6.72
  7. 7.Which is the smallest: 0.128, 0.088, 0.22, 0.2? (a) 0.128 (b) 0.088 (c) 0.22 (d) 0.2
  8. 8.Which is the smallest: 0.4, 0.379, 0.026, 0.47? (a) 0.4 (b) 0.379 (c) 0.026 (d) 0.47
  9. 9.What is the value of the digit 5 in 54.967? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  10. 10.What is the value of the digit 8 in 17.983? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  11. 11.7.13 + 3.5 = ? (a) 10.73 (b) 10.63 (c) 10.53 (d) 7.48
  12. 12.1.58 + 5.6 = ? (a) 7.08 (b) 2.14 (c) 7.18 (d) 7.28
  13. 13.Which is the smallest: 0.81, 0.8, 0.081, 0.787? (a) 0.81 (b) 0.8 (c) 0.081 (d) 0.787
  14. 14.4.79 + 9.3 = ? (a) 14.09 (b) 14.19 (c) 5.72 (d) 13.99
  15. 15.What is the value of the digit 4 in 84.562? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  16. 16.Which is the smallest: 0.699, 0.78, 0.7, 0.091? (a) 0.699 (b) 0.78 (c) 0.7 (d) 0.091
  17. 17.2.36 + 8.5 = ? (a) 3.21 (b) 10.86 (c) 10.96 (d) 10.76
  18. 18.4.05 + 2.6 = ? (a) 6.65 (b) 4.31 (c) 6.75 (d) 6.55
  19. 19.What is the value of the digit 3 in 62.315? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  20. 20.Which is the greatest: 0.88, 0.8, 0.714, 0.092? (a) 0.88 (b) 0.8 (c) 0.714 (d) 0.092
  21. 21.7.93 + 6.6 = ? (a) 14.43 (b) 14.63 (c) 8.59 (d) 14.53
  22. 22.6.85 + 7.2 = ? (a) 14.05 (b) 7.57 (c) 13.95 (d) 14.15
  23. 23.2.02 + 7.5 = ? (a) 2.77 (b) 9.62 (c) 9.42 (d) 9.52
  24. 24.What is the value of the digit 6 in 21.687? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  25. 25.Which is the smallest: 0.68, 0.519, 0.099, 0.6? (a) 0.68 (b) 0.519 (c) 0.099 (d) 0.6
  26. 26.Which is the greatest: 0.2, 0.024, 0.142, 0.21? (a) 0.2 (b) 0.024 (c) 0.142 (d) 0.21
  27. 27.8.89 + 4.6 = ? (a) 13.39 (b) 13.49 (c) 9.35 (d) 13.59
  28. 28.What is the value of the digit 4 in 74.816? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  29. 29.Which is the smallest: 0.688, 0.76, 0.066, 0.7? (a) 0.688 (b) 0.76 (c) 0.066 (d) 0.7
  30. 30.What is the value of the digit 9 in 69.435? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  31. 31.What is the value of the digit 2 in 32.147? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  32. 32.Which is the smallest: 0.426, 0.5, 0.57, 0.044? (a) 0.426 (b) 0.5 (c) 0.57 (d) 0.044
  33. 33.Which is the greatest: 0.781, 0.051, 0.8, 0.86? (a) 0.781 (b) 0.051 (c) 0.8 (d) 0.86
  34. 34.8.21 + 9.6 = ? (a) 17.71 (b) 17.81 (c) 9.17 (d) 17.91
  35. 35.Which is the greatest: 0.5, 0.481, 0.016, 0.55? (a) 0.5 (b) 0.481 (c) 0.016 (d) 0.55
  36. 36.What is the value of the digit 8 in 31.948? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  37. 37.Which is the greatest: 0.7, 0.73, 0.628, 0.011? (a) 0.7 (b) 0.73 (c) 0.628 (d) 0.011
  38. 38.Which is the smallest: 0.2, 0.26, 0.071, 0.162? (a) 0.2 (b) 0.26 (c) 0.071 (d) 0.162
  39. 39.What is the value of the digit 6 in 63.249? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  40. 40.What is the value of the digit 5 in 35.826? (a) 0.05 (b) 0.5 (c) 5 (d) 50

Answer key

  1. 70
  2. 7.18
  3. 0.009
  4. 0.58
  5. 9.97
  6. 11.31
  7. 0.088
  8. 0.026
  9. 50
  10. 0.08
  11. 10.63
  12. 7.18
  13. 0.081
  14. 14.09
  15. 4
  16. 0.091
  17. 10.86
  18. 6.65
  19. 0.3
  20. 0.88
  21. 14.53
  22. 14.05
  23. 9.52
  24. 0.6
  25. 0.099
  26. 0.21
  27. 13.49
  28. 4
  29. 0.066
  30. 9
  31. 2
  32. 0.044
  33. 0.86
  34. 17.81
  35. 0.55
  36. 0.008
  37. 0.73
  38. 0.071
  39. 60
  40. 5

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