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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 598 · 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.Which is the greatest: 0.711, 0.84, 0.066, 0.8? (a) 0.711 (b) 0.84 (c) 0.066 (d) 0.8
  2. 2.Which is the smallest: 0.291, 0.055, 0.33, 0.3? (a) 0.291 (b) 0.055 (c) 0.33 (d) 0.3
  3. 3.What is the value of the digit 7 in 86.473? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  4. 4.8.52 + 8.1 = ? (a) 16.52 (b) 16.62 (c) 9.33 (d) 16.72
  5. 5.Which is the greatest: 0.7, 0.75, 0.631, 0.037? (a) 0.7 (b) 0.75 (c) 0.631 (d) 0.037
  6. 6.What is the value of the digit 5 in 85.627? (a) 0.5 (b) 50 (c) 0.05 (d) 5
  7. 7.Which is the smallest: 0.2, 0.055, 0.21, 0.162? (a) 0.2 (b) 0.055 (c) 0.21 (d) 0.162
  8. 8.6.62 + 3.6 = ? (a) 10.22 (b) 6.98 (c) 10.32 (d) 10.12
  9. 9.6.14 + 5.5 = ? (a) 11.74 (b) 6.69 (c) 11.64 (d) 11.54
  10. 10.8.03 + 8.8 = ? (a) 16.73 (b) 16.83 (c) 16.93 (d) 8.91
  11. 11.Which is the greatest: 0.66, 0.043, 0.6, 0.594? (a) 0.66 (b) 0.043 (c) 0.6 (d) 0.594
  12. 12.What is the value of the digit 2 in 29.345? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  13. 13.Which is the greatest: 0.59, 0.032, 0.445, 0.5? (a) 0.59 (b) 0.032 (c) 0.445 (d) 0.5
  14. 14.Which is the smallest: 0.5, 0.51, 0.062, 0.424? (a) 0.5 (b) 0.51 (c) 0.062 (d) 0.424
  15. 15.What is the value of the digit 7 in 15.734? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  16. 16.1.92 + 3.8 = ? (a) 5.62 (b) 5.72 (c) 2.3 (d) 5.82
  17. 17.7.83 + 9.6 = ? (a) 17.33 (b) 8.79 (c) 17.43 (d) 17.53
  18. 18.5.93 + 7.3 = ? (a) 13.13 (b) 13.33 (c) 13.23 (d) 6.66
  19. 19.What is the value of the digit 6 in 65.179? (a) 0.6 (b) 0.06 (c) 60 (d) 6
  20. 20.Which is the smallest: 0.47, 0.4, 0.319, 0.081? (a) 0.47 (b) 0.4 (c) 0.319 (d) 0.081
  21. 21.What is the value of the digit 8 in 61.849? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  22. 22.2.95 + 2.1 = ? (a) 3.16 (b) 5.15 (c) 4.95 (d) 5.05
  23. 23.Which is the greatest: 0.291, 0.34, 0.021, 0.3? (a) 0.291 (b) 0.34 (c) 0.021 (d) 0.3
  24. 24.5.08 + 7.7 = ? (a) 5.85 (b) 12.68 (c) 12.88 (d) 12.78
  25. 25.What is the value of the digit 4 in 97.435? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  26. 26.Which is the greatest: 0.5, 0.419, 0.58, 0.088? (a) 0.5 (b) 0.419 (c) 0.58 (d) 0.088
  27. 27.What is the value of the digit 6 in 65.247? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  28. 28.Which is the greatest: 0.014, 0.577, 0.65, 0.6? (a) 0.014 (b) 0.577 (c) 0.65 (d) 0.6
  29. 29.Which is the greatest: 0.37, 0.3, 0.091, 0.264? (a) 0.37 (b) 0.3 (c) 0.091 (d) 0.264
  30. 30.Which is the smallest: 0.494, 0.53, 0.072, 0.5? (a) 0.494 (b) 0.53 (c) 0.072 (d) 0.5
  31. 31.What is the value of the digit 3 in 35.217? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  32. 32.What is the value of the digit 7 in 95.723? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  33. 33.Which is the greatest: 0.584, 0.62, 0.045, 0.6? (a) 0.584 (b) 0.62 (c) 0.045 (d) 0.6
  34. 34.Which is the greatest: 0.63, 0.6, 0.516, 0.022? (a) 0.63 (b) 0.6 (c) 0.516 (d) 0.022
  35. 35.What is the value of the digit 3 in 32.178? (a) 0.03 (b) 3 (c) 30 (d) 0.3
  36. 36.6.61 + 9.5 = ? (a) 16.21 (b) 16.01 (c) 16.11 (d) 7.56
  37. 37.What is the value of the digit 3 in 53.847? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  38. 38.What is the value of the digit 2 in 57.928? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  39. 39.Which is the smallest: 0.65, 0.585, 0.6, 0.015? (a) 0.65 (b) 0.585 (c) 0.6 (d) 0.015
  40. 40.Which is the smallest: 0.2, 0.163, 0.087, 0.29? (a) 0.2 (b) 0.163 (c) 0.087 (d) 0.29

Answer key

  1. 0.84
  2. 0.055
  3. 0.07
  4. 16.62
  5. 0.75
  6. 5
  7. 0.055
  8. 10.22
  9. 11.64
  10. 16.83
  11. 0.66
  12. 20
  13. 0.59
  14. 0.062
  15. 0.7
  16. 5.72
  17. 17.43
  18. 13.23
  19. 60
  20. 0.081
  21. 0.8
  22. 5.05
  23. 0.34
  24. 12.78
  25. 0.4
  26. 0.58
  27. 60
  28. 0.65
  29. 0.37
  30. 0.072
  31. 30
  32. 0.7
  33. 0.62
  34. 0.63
  35. 30
  36. 16.11
  37. 3
  38. 0.02
  39. 0.015
  40. 0.087

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