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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 320 · 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: 0.35, 0.3, 0.255, 0.095? (a) 0.35 (b) 0.3 (c) 0.255 (d) 0.095
  2. 2.What is the value of the digit 7 in 87.431? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  3. 3.7.47 + 4.3 = ? (a) 11.67 (b) 11.87 (c) 7.9 (d) 11.77
  4. 4.What is the value of the digit 7 in 53.978? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  5. 5.1.84 + 8.1 = ? (a) 9.94 (b) 9.84 (c) 10.04 (d) 2.65
  6. 6.What is the value of the digit 5 in 28.451? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  7. 7.What is the value of the digit 6 in 58.962? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  8. 8.7.76 + 8.4 = ? (a) 16.06 (b) 16.16 (c) 8.6 (d) 16.26
  9. 9.What is the value of the digit 2 in 23.645? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  10. 10.Which is the smallest: 0.74, 0.7, 0.029, 0.645? (a) 0.74 (b) 0.7 (c) 0.029 (d) 0.645
  11. 11.What is the value of the digit 8 in 86.317? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  12. 12.9.84 + 4.3 = ? (a) 10.27 (b) 14.14 (c) 14.24 (d) 14.04
  13. 13.Which is the greatest: 0.078, 0.71, 0.672, 0.7? (a) 0.078 (b) 0.71 (c) 0.672 (d) 0.7
  14. 14.Which is the greatest: 0.46, 0.317, 0.072, 0.4? (a) 0.46 (b) 0.317 (c) 0.072 (d) 0.4
  15. 15.Which is the greatest: 0.6, 0.552, 0.069, 0.63? (a) 0.6 (b) 0.552 (c) 0.069 (d) 0.63
  16. 16.8.23 + 8.1 = ? (a) 16.33 (b) 16.23 (c) 9.04 (d) 16.43
  17. 17.Which is the greatest: 0.084, 0.2, 0.25, 0.123? (a) 0.084 (b) 0.2 (c) 0.25 (d) 0.123
  18. 18.3.51 + 5.1 = ? (a) 8.51 (b) 8.71 (c) 8.61 (d) 4.02
  19. 19.6.27 + 3.5 = ? (a) 9.67 (b) 9.77 (c) 9.87 (d) 6.62
  20. 20.What is the value of the digit 8 in 89.736? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  21. 21.What is the value of the digit 5 in 54.263? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  22. 22.5.71 + 3.1 = ? (a) 6.02 (b) 8.71 (c) 8.81 (d) 8.91
  23. 23.What is the value of the digit 4 in 98.451? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  24. 24.Which is the greatest: 0.45, 0.047, 0.4, 0.318? (a) 0.45 (b) 0.047 (c) 0.4 (d) 0.318
  25. 25.What is the value of the digit 2 in 29.137? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  26. 26.Which is the smallest: 0.075, 0.229, 0.3, 0.35? (a) 0.075 (b) 0.229 (c) 0.3 (d) 0.35
  27. 27.Which is the greatest: 0.069, 0.81, 0.742, 0.8? (a) 0.069 (b) 0.81 (c) 0.742 (d) 0.8
  28. 28.Which is the greatest: 0.034, 0.7, 0.73, 0.618? (a) 0.034 (b) 0.7 (c) 0.73 (d) 0.618
  29. 29.What is the value of the digit 1 in 18.253? (a) 0.01 (b) 10 (c) 0.1 (d) 1
  30. 30.Which is the smallest: 0.081, 0.229, 0.3, 0.35? (a) 0.081 (b) 0.229 (c) 0.3 (d) 0.35
  31. 31.Which is the greatest: 0.273, 0.36, 0.3, 0.076? (a) 0.273 (b) 0.36 (c) 0.3 (d) 0.076
  32. 32.What is the value of the digit 5 in 73.856? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  33. 33.What is the value of the digit 3 in 72.435? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  34. 34.7.09 + 6.5 = ? (a) 13.69 (b) 13.49 (c) 13.59 (d) 7.74
  35. 35.What is the value of the digit 8 in 12.768? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  36. 36.Which is the smallest: 0.097, 0.685, 0.7, 0.71? (a) 0.097 (b) 0.685 (c) 0.7 (d) 0.71
  37. 37.What is the value of the digit 8 in 24.138? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  38. 38.Which is the greatest: 0.034, 0.73, 0.643, 0.7? (a) 0.034 (b) 0.73 (c) 0.643 (d) 0.7
  39. 39.Which is the greatest: 0.82, 0.8, 0.743, 0.083? (a) 0.82 (b) 0.8 (c) 0.743 (d) 0.083
  40. 40.Which is the smallest: 0.093, 0.2, 0.28, 0.136? (a) 0.093 (b) 0.2 (c) 0.28 (d) 0.136

Answer key

  1. 0.35
  2. 7
  3. 11.77
  4. 0.07
  5. 9.94
  6. 0.05
  7. 0.06
  8. 16.16
  9. 20
  10. 0.029
  11. 80
  12. 14.14
  13. 0.71
  14. 0.46
  15. 0.63
  16. 16.33
  17. 0.25
  18. 8.61
  19. 9.77
  20. 80
  21. 50
  22. 8.81
  23. 0.4
  24. 0.45
  25. 20
  26. 0.075
  27. 0.81
  28. 0.73
  29. 10
  30. 0.081
  31. 0.36
  32. 0.05
  33. 0.03
  34. 13.59
  35. 0.008
  36. 0.097
  37. 0.008
  38. 0.73
  39. 0.82
  40. 0.093

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