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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 143 · 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 5 in 95.624? (a) 5 (b) 0.05 (c) 50 (d) 0.5
  2. 2.Which is the greatest: 0.44, 0.025, 0.319, 0.4? (a) 0.44 (b) 0.025 (c) 0.319 (d) 0.4
  3. 3.Which is the greatest: 0.28, 0.032, 0.182, 0.2? (a) 0.28 (b) 0.032 (c) 0.182 (d) 0.2
  4. 4.2.84 + 8.3 = ? (a) 11.04 (b) 3.67 (c) 11.14 (d) 11.24
  5. 5.Which is the smallest: 0.415, 0.031, 0.58, 0.5? (a) 0.415 (b) 0.031 (c) 0.58 (d) 0.5
  6. 6.1.55 + 1.2 = ? (a) 2.85 (b) 2.75 (c) 2.65 (d) 1.67
  7. 7.Which is the greatest: 0.381, 0.4, 0.067, 0.44? (a) 0.381 (b) 0.4 (c) 0.067 (d) 0.44
  8. 8.3.58 + 6.3 = ? (a) 9.98 (b) 9.88 (c) 4.21 (d) 9.78
  9. 9.What is the value of the digit 9 in 17.924? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  10. 10.What is the value of the digit 9 in 51.439? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  11. 11.What is the value of the digit 8 in 56.827? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  12. 12.7.55 + 3.5 = ? (a) 11.05 (b) 7.9 (c) 10.95 (d) 11.15
  13. 13.Which is the smallest: 0.044, 0.62, 0.549, 0.6? (a) 0.044 (b) 0.62 (c) 0.549 (d) 0.6
  14. 14.What is the value of the digit 3 in 93.261? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  15. 15.2.96 + 1.3 = ? (a) 4.36 (b) 4.26 (c) 3.09 (d) 4.16
  16. 16.What is the value of the digit 1 in 92.183? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  17. 17.3.36 + 3.6 = ? (a) 7.06 (b) 6.96 (c) 6.86 (d) 3.72
  18. 18.What is the value of the digit 7 in 76.918? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  19. 19.What is the value of the digit 8 in 18.573? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  20. 20.6.32 + 2.3 = ? (a) 8.62 (b) 8.52 (c) 8.72 (d) 6.55
  21. 21.What is the value of the digit 5 in 95.173? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  22. 22.7.33 + 5.1 = ? (a) 12.33 (b) 12.53 (c) 7.84 (d) 12.43
  23. 23.Which is the greatest: 0.132, 0.21, 0.2, 0.036? (a) 0.132 (b) 0.21 (c) 0.2 (d) 0.036
  24. 24.5.19 + 9.6 = ? (a) 6.15 (b) 14.89 (c) 14.79 (d) 14.69
  25. 25.What is the value of the digit 8 in 58.269? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  26. 26.Which is the smallest: 0.25, 0.2, 0.121, 0.055? (a) 0.25 (b) 0.2 (c) 0.121 (d) 0.055
  27. 27.2.28 + 1.4 = ? (a) 3.78 (b) 3.58 (c) 3.68 (d) 2.42
  28. 28.8.23 + 1.1 = ? (a) 8.34 (b) 9.33 (c) 9.43 (d) 9.23
  29. 29.What is the value of the digit 8 in 19.538? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  30. 30.3.62 + 3.1 = ? (a) 3.93 (b) 6.82 (c) 6.62 (d) 6.72
  31. 31.9.29 + 1.4 = ? (a) 9.43 (b) 10.79 (c) 10.69 (d) 10.59
  32. 32.Which is the greatest: 0.092, 0.65, 0.6, 0.525? (a) 0.092 (b) 0.65 (c) 0.6 (d) 0.525
  33. 33.3.28 + 3.7 = ? (a) 3.65 (b) 6.98 (c) 6.88 (d) 7.08
  34. 34.Which is the smallest: 0.043, 0.6, 0.67, 0.576? (a) 0.043 (b) 0.6 (c) 0.67 (d) 0.576
  35. 35.Which is the smallest: 0.82, 0.8, 0.072, 0.788? (a) 0.82 (b) 0.8 (c) 0.072 (d) 0.788
  36. 36.What is the value of the digit 3 in 32.897? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  37. 37.9.63 + 7.9 = ? (a) 17.63 (b) 17.53 (c) 17.43 (d) 10.42
  38. 38.Which is the smallest: 0.016, 0.477, 0.5, 0.56? (a) 0.016 (b) 0.477 (c) 0.5 (d) 0.56
  39. 39.What is the value of the digit 2 in 72.431? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  40. 40.Which is the greatest: 0.4, 0.332, 0.078, 0.44? (a) 0.4 (b) 0.332 (c) 0.078 (d) 0.44

Answer key

  1. 5
  2. 0.44
  3. 0.28
  4. 11.14
  5. 0.031
  6. 2.75
  7. 0.44
  8. 9.88
  9. 0.9
  10. 0.009
  11. 0.8
  12. 11.05
  13. 0.044
  14. 3
  15. 4.26
  16. 0.1
  17. 6.96
  18. 70
  19. 8
  20. 8.62
  21. 5
  22. 12.43
  23. 0.21
  24. 14.79
  25. 8
  26. 0.055
  27. 3.68
  28. 9.33
  29. 0.008
  30. 6.72
  31. 10.69
  32. 0.65
  33. 6.98
  34. 0.043
  35. 0.072
  36. 30
  37. 17.53
  38. 0.016
  39. 2
  40. 0.44

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