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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 919 · 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: 0.128, 0.2, 0.28, 0.032? (a) 0.128 (b) 0.2 (c) 0.28 (d) 0.032
  2. 2.6.44 + 8.1 = ? (a) 7.25 (b) 14.44 (c) 14.64 (d) 14.54
  3. 3.What is the value of the digit 9 in 92.374? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  4. 4.What is the value of the digit 9 in 91.624? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  5. 5.Which is the greatest: 0.021, 0.7, 0.76, 0.612? (a) 0.021 (b) 0.7 (c) 0.76 (d) 0.612
  6. 6.What is the value of the digit 4 in 32.948? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  7. 7.Which is the greatest: 0.149, 0.035, 0.28, 0.2? (a) 0.149 (b) 0.035 (c) 0.28 (d) 0.2
  8. 8.3.35 + 8.9 = ? (a) 12.35 (b) 12.25 (c) 4.24 (d) 12.15
  9. 9.What is the value of the digit 3 in 37.958? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  10. 10.1.29 + 3.3 = ? (a) 1.62 (b) 4.49 (c) 4.69 (d) 4.59
  11. 11.1.15 + 9.8 = ? (a) 2.13 (b) 10.85 (c) 10.95 (d) 11.05
  12. 12.Which is the greatest: 0.073, 0.2, 0.115, 0.26? (a) 0.073 (b) 0.2 (c) 0.115 (d) 0.26
  13. 13.Which is the greatest: 0.349, 0.062, 0.4, 0.45? (a) 0.349 (b) 0.062 (c) 0.4 (d) 0.45
  14. 14.8.42 + 1.9 = ? (a) 10.32 (b) 10.22 (c) 10.42 (d) 8.61
  15. 15.Which is the greatest: 0.026, 0.29, 0.2, 0.182? (a) 0.026 (b) 0.29 (c) 0.2 (d) 0.182
  16. 16.Which is the greatest: 0.314, 0.47, 0.4, 0.057? (a) 0.314 (b) 0.47 (c) 0.4 (d) 0.057
  17. 17.6.52 + 4.8 = ? (a) 7 (b) 11.32 (c) 11.22 (d) 11.42
  18. 18.1.56 + 1.4 = ? (a) 1.7 (b) 2.96 (c) 3.06 (d) 2.86
  19. 19.3.47 + 8.6 = ? (a) 4.33 (b) 11.97 (c) 12.07 (d) 12.17
  20. 20.What is the value of the digit 7 in 51.792? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  21. 21.7.86 + 5.4 = ? (a) 13.36 (b) 13.26 (c) 13.16 (d) 8.4
  22. 22.What is the value of the digit 2 in 23.479? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  23. 23.6.54 + 2.2 = ? (a) 8.84 (b) 8.74 (c) 8.64 (d) 6.76
  24. 24.3.48 + 5.1 = ? (a) 8.48 (b) 8.58 (c) 8.68 (d) 3.99
  25. 25.Which is the smallest: 0.033, 0.3, 0.31, 0.266? (a) 0.033 (b) 0.3 (c) 0.31 (d) 0.266
  26. 26.2.34 + 4.6 = ? (a) 7.04 (b) 6.94 (c) 2.8 (d) 6.84
  27. 27.What is the value of the digit 6 in 86.912? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  28. 28.What is the value of the digit 6 in 51.326? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  29. 29.4.56 + 4.4 = ? (a) 5 (b) 8.86 (c) 9.06 (d) 8.96
  30. 30.What is the value of the digit 2 in 93.621? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  31. 31.What is the value of the digit 2 in 25.146? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  32. 32.What is the value of the digit 3 in 54.367? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  33. 33.1.36 + 1.3 = ? (a) 2.56 (b) 2.66 (c) 1.49 (d) 2.76
  34. 34.4.07 + 1.5 = ? (a) 4.22 (b) 5.47 (c) 5.67 (d) 5.57
  35. 35.What is the value of the digit 2 in 82.794? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  36. 36.What is the value of the digit 3 in 78.354? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  37. 37.9.56 + 9.8 = ? (a) 19.26 (b) 19.36 (c) 10.54 (d) 19.46
  38. 38.3.04 + 9.2 = ? (a) 3.96 (b) 12.34 (c) 12.24 (d) 12.14
  39. 39.6.19 + 7.4 = ? (a) 6.93 (b) 13.69 (c) 13.59 (d) 13.49
  40. 40.5.44 + 9.8 = ? (a) 15.34 (b) 15.14 (c) 6.42 (d) 15.24

Answer key

  1. 0.28
  2. 14.54
  3. 90
  4. 90
  5. 0.76
  6. 0.04
  7. 0.28
  8. 12.25
  9. 30
  10. 4.59
  11. 10.95
  12. 0.26
  13. 0.45
  14. 10.32
  15. 0.29
  16. 0.47
  17. 11.32
  18. 2.96
  19. 12.07
  20. 0.7
  21. 13.26
  22. 20
  23. 8.74
  24. 8.58
  25. 0.033
  26. 6.94
  27. 6
  28. 0.006
  29. 8.96
  30. 0.02
  31. 20
  32. 0.3
  33. 2.66
  34. 5.57
  35. 2
  36. 0.3
  37. 19.36
  38. 12.24
  39. 13.59
  40. 15.24

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