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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 240 · 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: 0.68, 0.059, 0.6, 0.524? (a) 0.68 (b) 0.059 (c) 0.6 (d) 0.524
  2. 2.Which is the smallest: 0.623, 0.7, 0.048, 0.71? (a) 0.623 (b) 0.7 (c) 0.048 (d) 0.71
  3. 3.Which is the smallest: 0.023, 0.22, 0.2, 0.146? (a) 0.023 (b) 0.22 (c) 0.2 (d) 0.146
  4. 4.8.76 + 4.1 = ? (a) 12.96 (b) 9.17 (c) 12.86 (d) 12.76
  5. 5.What is the value of the digit 4 in 96.748? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  6. 6.7.02 + 4.9 = ? (a) 7.51 (b) 11.92 (c) 12.02 (d) 11.82
  7. 7.3.89 + 6.4 = ? (a) 4.53 (b) 10.29 (c) 10.19 (d) 10.39
  8. 8.What is the value of the digit 1 in 52.137? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  9. 9.Which is the greatest: 0.242, 0.073, 0.3, 0.38? (a) 0.242 (b) 0.073 (c) 0.3 (d) 0.38
  10. 10.9.58 + 3.8 = ? (a) 9.96 (b) 13.28 (c) 13.48 (d) 13.38
  11. 11.What is the value of the digit 9 in 64.192? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  12. 12.What is the value of the digit 6 in 34.651? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  13. 13.What is the value of the digit 5 in 62.954? (a) 0.05 (b) 0.5 (c) 5 (d) 0.005
  14. 14.4.48 + 2.8 = ? (a) 7.18 (b) 7.28 (c) 7.38 (d) 4.76
  15. 15.4.89 + 3.1 = ? (a) 5.2 (b) 7.89 (c) 8.09 (d) 7.99
  16. 16.5.23 + 3.5 = ? (a) 8.63 (b) 5.58 (c) 8.73 (d) 8.83
  17. 17.What is the value of the digit 7 in 14.527? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  18. 18.Which is the greatest: 0.099, 0.2, 0.24, 0.176? (a) 0.099 (b) 0.2 (c) 0.24 (d) 0.176
  19. 19.Which is the smallest: 0.071, 0.69, 0.586, 0.6? (a) 0.071 (b) 0.69 (c) 0.586 (d) 0.6
  20. 20.1.21 + 2.3 = ? (a) 3.61 (b) 3.51 (c) 1.44 (d) 3.41
  21. 21.1.63 + 5.7 = ? (a) 7.43 (b) 7.23 (c) 7.33 (d) 2.2
  22. 22.3.41 + 3.6 = ? (a) 3.77 (b) 7.01 (c) 6.91 (d) 7.11
  23. 23.Which is the greatest: 0.118, 0.23, 0.096, 0.2? (a) 0.118 (b) 0.23 (c) 0.096 (d) 0.2
  24. 24.8.55 + 7.4 = ? (a) 16.05 (b) 9.29 (c) 15.95 (d) 15.85
  25. 25.4.01 + 2.4 = ? (a) 6.51 (b) 6.41 (c) 6.31 (d) 4.25
  26. 26.Which is the greatest: 0.052, 0.368, 0.44, 0.4? (a) 0.052 (b) 0.368 (c) 0.44 (d) 0.4
  27. 27.6.58 + 3.1 = ? (a) 6.89 (b) 9.68 (c) 9.58 (d) 9.78
  28. 28.9.04 + 4.2 = ? (a) 13.14 (b) 9.46 (c) 13.34 (d) 13.24
  29. 29.What is the value of the digit 6 in 28.561? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  30. 30.2.17 + 3.5 = ? (a) 2.52 (b) 5.57 (c) 5.67 (d) 5.77
  31. 31.Which is the smallest: 0.053, 0.49, 0.4, 0.347? (a) 0.053 (b) 0.49 (c) 0.4 (d) 0.347
  32. 32.9.28 + 9.3 = ? (a) 18.68 (b) 18.58 (c) 10.21 (d) 18.48
  33. 33.What is the value of the digit 3 in 89.732? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  34. 34.What is the value of the digit 7 in 29.714? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  35. 35.Which is the smallest: 0.67, 0.574, 0.6, 0.068? (a) 0.67 (b) 0.574 (c) 0.6 (d) 0.068
  36. 36.What is the value of the digit 3 in 83.927? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  37. 37.Which is the smallest: 0.023, 0.589, 0.6, 0.64? (a) 0.023 (b) 0.589 (c) 0.6 (d) 0.64
  38. 38.1.51 + 5.1 = ? (a) 6.51 (b) 6.61 (c) 2.02 (d) 6.71
  39. 39.1.01 + 5.7 = ? (a) 1.58 (b) 6.61 (c) 6.71 (d) 6.81
  40. 40.2.32 + 4.6 = ? (a) 2.78 (b) 7.02 (c) 6.82 (d) 6.92

Answer key

  1. 0.68
  2. 0.048
  3. 0.023
  4. 12.86
  5. 0.04
  6. 11.92
  7. 10.29
  8. 0.1
  9. 0.38
  10. 13.38
  11. 0.09
  12. 0.6
  13. 0.05
  14. 7.28
  15. 7.99
  16. 8.73
  17. 0.007
  18. 0.24
  19. 0.071
  20. 3.51
  21. 7.33
  22. 7.01
  23. 0.23
  24. 15.95
  25. 6.41
  26. 0.44
  27. 9.68
  28. 13.24
  29. 0.06
  30. 5.67
  31. 0.053
  32. 18.58
  33. 0.03
  34. 0.7
  35. 0.068
  36. 3
  37. 0.023
  38. 6.61
  39. 6.71
  40. 6.92

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