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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 915 · 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 smallest: 0.434, 0.56, 0.055, 0.5? (a) 0.434 (b) 0.56 (c) 0.055 (d) 0.5
  2. 2.8.52 + 1.6 = ? (a) 10.02 (b) 10.12 (c) 8.68 (d) 10.22
  3. 3.What is the value of the digit 8 in 18.794? (a) 80 (b) 8 (c) 0.08 (d) 0.8
  4. 4.What is the value of the digit 6 in 69.342? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  5. 5.What is the value of the digit 1 in 62.315? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  6. 6.What is the value of the digit 8 in 18.725? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  7. 7.What is the value of the digit 3 in 64.193? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  8. 8.Which is the greatest: 0.27, 0.2, 0.049, 0.181? (a) 0.27 (b) 0.2 (c) 0.049 (d) 0.181
  9. 9.Which is the greatest: 0.3, 0.38, 0.268, 0.095? (a) 0.3 (b) 0.38 (c) 0.268 (d) 0.095
  10. 10.What is the value of the digit 2 in 83.427? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  11. 11.What is the value of the digit 6 in 26.379? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  12. 12.7.83 + 8.4 = ? (a) 16.33 (b) 16.23 (c) 16.13 (d) 8.67
  13. 13.Which is the smallest: 0.2, 0.155, 0.082, 0.21? (a) 0.2 (b) 0.155 (c) 0.082 (d) 0.21
  14. 14.Which is the greatest: 0.137, 0.22, 0.027, 0.2? (a) 0.137 (b) 0.22 (c) 0.027 (d) 0.2
  15. 15.5.31 + 8.9 = ? (a) 6.2 (b) 14.31 (c) 14.11 (d) 14.21
  16. 16.Which is the smallest: 0.2, 0.019, 0.151, 0.26? (a) 0.2 (b) 0.019 (c) 0.151 (d) 0.26
  17. 17.What is the value of the digit 7 in 17.849? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  18. 18.What is the value of the digit 3 in 75.132? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  19. 19.2.87 + 6.4 = ? (a) 3.51 (b) 9.17 (c) 9.27 (d) 9.37
  20. 20.What is the value of the digit 8 in 71.248? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  21. 21.8.99 + 1.4 = ? (a) 10.39 (b) 10.49 (c) 10.29 (d) 9.13
  22. 22.2.05 + 3.1 = ? (a) 5.05 (b) 5.15 (c) 2.36 (d) 5.25
  23. 23.Which is the smallest: 0.031, 0.85, 0.718, 0.8? (a) 0.031 (b) 0.85 (c) 0.718 (d) 0.8
  24. 24.2.36 + 9.9 = ? (a) 12.16 (b) 12.26 (c) 3.35 (d) 12.36
  25. 25.2.33 + 8.1 = ? (a) 10.33 (b) 10.53 (c) 10.43 (d) 3.14
  26. 26.What is the value of the digit 2 in 81.264? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  27. 27.What is the value of the digit 8 in 82.675? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  28. 28.Which is the greatest: 0.4, 0.44, 0.352, 0.041? (a) 0.4 (b) 0.44 (c) 0.352 (d) 0.041
  29. 29.4.94 + 6.4 = ? (a) 11.24 (b) 11.44 (c) 5.58 (d) 11.34
  30. 30.Which is the greatest: 0.5, 0.56, 0.044, 0.463? (a) 0.5 (b) 0.56 (c) 0.044 (d) 0.463
  31. 31.2.22 + 1.7 = ? (a) 3.92 (b) 4.02 (c) 2.39 (d) 3.82
  32. 32.What is the value of the digit 9 in 86.459? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  33. 33.9.47 + 4.5 = ? (a) 9.92 (b) 14.07 (c) 13.97 (d) 13.87
  34. 34.1.69 + 4.8 = ? (a) 6.39 (b) 6.59 (c) 2.17 (d) 6.49
  35. 35.6.59 + 2.7 = ? (a) 6.86 (b) 9.19 (c) 9.39 (d) 9.29
  36. 36.What is the value of the digit 6 in 31.625? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  37. 37.5.03 + 5.1 = ? (a) 10.13 (b) 10.23 (c) 5.54 (d) 10.03
  38. 38.Which is the greatest: 0.375, 0.48, 0.4, 0.078? (a) 0.375 (b) 0.48 (c) 0.4 (d) 0.078
  39. 39.What is the value of the digit 4 in 24.953? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  40. 40.3.04 + 6.5 = ? (a) 9.64 (b) 3.69 (c) 9.44 (d) 9.54

Answer key

  1. 0.055
  2. 10.12
  3. 8
  4. 60
  5. 0.01
  6. 8
  7. 0.003
  8. 0.27
  9. 0.38
  10. 0.02
  11. 6
  12. 16.23
  13. 0.082
  14. 0.22
  15. 14.21
  16. 0.019
  17. 7
  18. 0.03
  19. 9.27
  20. 0.008
  21. 10.39
  22. 5.15
  23. 0.031
  24. 12.26
  25. 10.43
  26. 0.2
  27. 80
  28. 0.44
  29. 11.34
  30. 0.56
  31. 3.92
  32. 0.009
  33. 13.97
  34. 6.49
  35. 9.29
  36. 0.6
  37. 10.13
  38. 0.48
  39. 4
  40. 9.54

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