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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 856 · 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 5 in 95.172? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  2. 2.1.97 + 2.6 = ? (a) 4.57 (b) 4.67 (c) 2.23 (d) 4.47
  3. 3.What is the value of the digit 6 in 68.214? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  4. 4.Which is the smallest: 0.72, 0.633, 0.7, 0.035? (a) 0.72 (b) 0.633 (c) 0.7 (d) 0.035
  5. 5.What is the value of the digit 2 in 37.426? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  6. 6.Which is the greatest: 0.8, 0.82, 0.744, 0.081? (a) 0.8 (b) 0.82 (c) 0.744 (d) 0.081
  7. 7.9.53 + 3.1 = ? (a) 12.73 (b) 12.53 (c) 9.84 (d) 12.63
  8. 8.8.59 + 6.9 = ? (a) 15.39 (b) 15.59 (c) 9.28 (d) 15.49
  9. 9.3.75 + 1.5 = ? (a) 5.25 (b) 3.9 (c) 5.35 (d) 5.15
  10. 10.2.75 + 9.8 = ? (a) 12.65 (b) 12.55 (c) 12.45 (d) 3.73
  11. 11.2.94 + 2.1 = ? (a) 3.15 (b) 4.94 (c) 5.14 (d) 5.04
  12. 12.Which is the greatest: 0.76, 0.653, 0.021, 0.7? (a) 0.76 (b) 0.653 (c) 0.021 (d) 0.7
  13. 13.What is the value of the digit 6 in 69.574? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  14. 14.Which is the smallest: 0.212, 0.31, 0.3, 0.022? (a) 0.212 (b) 0.31 (c) 0.3 (d) 0.022
  15. 15.Which is the greatest: 0.051, 0.3, 0.275, 0.32? (a) 0.051 (b) 0.3 (c) 0.275 (d) 0.32
  16. 16.What is the value of the digit 8 in 31.824? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  17. 17.6.05 + 2.3 = ? (a) 6.28 (b) 8.45 (c) 8.35 (d) 8.25
  18. 18.9.37 + 7.1 = ? (a) 10.08 (b) 16.47 (c) 16.37 (d) 16.57
  19. 19.Which is the smallest: 0.492, 0.5, 0.082, 0.55? (a) 0.492 (b) 0.5 (c) 0.082 (d) 0.55
  20. 20.6.61 + 4.9 = ? (a) 11.61 (b) 11.41 (c) 7.1 (d) 11.51
  21. 21.9.34 + 2.3 = ? (a) 11.64 (b) 11.54 (c) 9.57 (d) 11.74
  22. 22.Which is the greatest: 0.155, 0.26, 0.2, 0.099? (a) 0.155 (b) 0.26 (c) 0.2 (d) 0.099
  23. 23.What is the value of the digit 2 in 23.768? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  24. 24.1.05 + 3.8 = ? (a) 4.75 (b) 4.95 (c) 4.85 (d) 1.43
  25. 25.Which is the greatest: 0.092, 0.155, 0.2, 0.21? (a) 0.092 (b) 0.155 (c) 0.2 (d) 0.21
  26. 26.9.14 + 2.8 = ? (a) 12.04 (b) 11.94 (c) 9.42 (d) 11.84
  27. 27.Which is the smallest: 0.4, 0.355, 0.015, 0.42? (a) 0.4 (b) 0.355 (c) 0.015 (d) 0.42
  28. 28.1.13 + 2.1 = ? (a) 3.23 (b) 3.33 (c) 1.34 (d) 3.13
  29. 29.8.98 + 9.1 = ? (a) 18.18 (b) 18.08 (c) 17.98 (d) 9.89
  30. 30.Which is the smallest: 0.074, 0.59, 0.455, 0.5? (a) 0.074 (b) 0.59 (c) 0.455 (d) 0.5
  31. 31.Which is the greatest: 0.037, 0.61, 0.564, 0.6? (a) 0.037 (b) 0.61 (c) 0.564 (d) 0.6
  32. 32.What is the value of the digit 7 in 64.372? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  33. 33.Which is the smallest: 0.218, 0.37, 0.3, 0.022? (a) 0.218 (b) 0.37 (c) 0.3 (d) 0.022
  34. 34.7.23 + 5.8 = ? (a) 13.13 (b) 7.81 (c) 13.03 (d) 12.93
  35. 35.What is the value of the digit 1 in 13.758? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  36. 36.7.81 + 8.9 = ? (a) 16.61 (b) 8.7 (c) 16.71 (d) 16.81
  37. 37.Which is the greatest: 0.3, 0.32, 0.217, 0.062? (a) 0.3 (b) 0.32 (c) 0.217 (d) 0.062
  38. 38.Which is the greatest: 0.2, 0.25, 0.164, 0.071? (a) 0.2 (b) 0.25 (c) 0.164 (d) 0.071
  39. 39.7.04 + 3.5 = ? (a) 10.64 (b) 7.39 (c) 10.44 (d) 10.54
  40. 40.What is the value of the digit 8 in 49.328? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8

Answer key

  1. 5
  2. 4.57
  3. 60
  4. 0.035
  5. 0.02
  6. 0.82
  7. 12.63
  8. 15.49
  9. 5.25
  10. 12.55
  11. 5.04
  12. 0.76
  13. 60
  14. 0.022
  15. 0.32
  16. 0.8
  17. 8.35
  18. 16.47
  19. 0.082
  20. 11.51
  21. 11.64
  22. 0.26
  23. 20
  24. 4.85
  25. 0.21
  26. 11.94
  27. 0.015
  28. 3.23
  29. 18.08
  30. 0.074
  31. 0.61
  32. 0.07
  33. 0.022
  34. 13.03
  35. 10
  36. 16.71
  37. 0.32
  38. 0.25
  39. 10.54
  40. 0.008

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