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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 345 · 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 2 in 92.647? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  2. 2.Which is the smallest: 0.5, 0.471, 0.086, 0.52? (a) 0.5 (b) 0.471 (c) 0.086 (d) 0.52
  3. 3.7.16 + 9.1 = ? (a) 16.36 (b) 8.07 (c) 16.16 (d) 16.26
  4. 4.7.49 + 4.3 = ? (a) 11.79 (b) 11.69 (c) 7.92 (d) 11.89
  5. 5.9.43 + 5.8 = ? (a) 15.13 (b) 15.23 (c) 15.33 (d) 10.01
  6. 6.Which is the greatest: 0.069, 0.51, 0.461, 0.5? (a) 0.069 (b) 0.51 (c) 0.461 (d) 0.5
  7. 7.Which is the greatest: 0.072, 0.185, 0.22, 0.2? (a) 0.072 (b) 0.185 (c) 0.22 (d) 0.2
  8. 8.7.59 + 6.1 = ? (a) 13.69 (b) 13.59 (c) 13.79 (d) 8.2
  9. 9.Which is the greatest: 0.43, 0.071, 0.4, 0.331? (a) 0.43 (b) 0.071 (c) 0.4 (d) 0.331
  10. 10.1.21 + 8.1 = ? (a) 9.21 (b) 9.31 (c) 9.41 (d) 2.02
  11. 11.5.85 + 9.3 = ? (a) 15.15 (b) 6.78 (c) 15.05 (d) 15.25
  12. 12.2.83 + 6.8 = ? (a) 9.73 (b) 3.51 (c) 9.63 (d) 9.53
  13. 13.4.46 + 1.2 = ? (a) 4.58 (b) 5.66 (c) 5.76 (d) 5.56
  14. 14.What is the value of the digit 4 in 42.937? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  15. 15.1.29 + 1.3 = ? (a) 2.59 (b) 2.49 (c) 1.42 (d) 2.69
  16. 16.What is the value of the digit 7 in 47.695? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  17. 17.What is the value of the digit 2 in 98.326? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  18. 18.1.31 + 5.1 = ? (a) 1.82 (b) 6.31 (c) 6.51 (d) 6.41
  19. 19.What is the value of the digit 4 in 24.638? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  20. 20.What is the value of the digit 4 in 64.319? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  21. 21.What is the value of the digit 5 in 51.869? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  22. 22.Which is the smallest: 0.3, 0.254, 0.39, 0.072? (a) 0.3 (b) 0.254 (c) 0.39 (d) 0.072
  23. 23.1.07 + 3.9 = ? (a) 5.07 (b) 4.97 (c) 4.87 (d) 1.46
  24. 24.4.08 + 1.3 = ? (a) 5.48 (b) 5.28 (c) 5.38 (d) 4.21
  25. 25.7.41 + 6.6 = ? (a) 13.91 (b) 8.07 (c) 14.01 (d) 14.11
  26. 26.Which is the smallest: 0.453, 0.047, 0.5, 0.59? (a) 0.453 (b) 0.047 (c) 0.5 (d) 0.59
  27. 27.What is the value of the digit 7 in 24.637? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  28. 28.What is the value of the digit 4 in 72.145? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  29. 29.1.75 + 4.5 = ? (a) 6.25 (b) 6.15 (c) 6.35 (d) 2.2
  30. 30.What is the value of the digit 9 in 29.416? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  31. 31.What is the value of the digit 4 in 64.328? (a) 40 (b) 0.04 (c) 4 (d) 0.4
  32. 32.What is the value of the digit 4 in 69.841? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  33. 33.Which is the greatest: 0.063, 0.29, 0.132, 0.2? (a) 0.063 (b) 0.29 (c) 0.132 (d) 0.2
  34. 34.What is the value of the digit 1 in 58.461? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  35. 35.Which is the smallest: 0.324, 0.4, 0.46, 0.035? (a) 0.324 (b) 0.4 (c) 0.46 (d) 0.035
  36. 36.What is the value of the digit 4 in 84.127? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  37. 37.Which is the smallest: 0.033, 0.3, 0.274, 0.33? (a) 0.033 (b) 0.3 (c) 0.274 (d) 0.33
  38. 38.4.16 + 1.3 = ? (a) 5.36 (b) 4.29 (c) 5.56 (d) 5.46
  39. 39.What is the value of the digit 9 in 89.317? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  40. 40.8.95 + 7.4 = ? (a) 16.25 (b) 9.69 (c) 16.45 (d) 16.35

Answer key

  1. 2
  2. 0.086
  3. 16.26
  4. 11.79
  5. 15.23
  6. 0.51
  7. 0.22
  8. 13.69
  9. 0.43
  10. 9.31
  11. 15.15
  12. 9.63
  13. 5.66
  14. 40
  15. 2.59
  16. 7
  17. 0.02
  18. 6.41
  19. 4
  20. 4
  21. 50
  22. 0.072
  23. 4.97
  24. 5.38
  25. 14.01
  26. 0.047
  27. 0.007
  28. 0.04
  29. 6.25
  30. 9
  31. 4
  32. 0.04
  33. 0.29
  34. 0.001
  35. 0.035
  36. 4
  37. 0.033
  38. 5.46
  39. 9
  40. 16.35

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