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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 858 · 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 4 in 49.218? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  2. 2.1.25 + 1.7 = ? (a) 2.85 (b) 3.05 (c) 1.42 (d) 2.95
  3. 3.Which is the greatest: 0.59, 0.067, 0.494, 0.5? (a) 0.59 (b) 0.067 (c) 0.494 (d) 0.5
  4. 4.What is the value of the digit 9 in 19.428? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  5. 5.What is the value of the digit 1 in 87.321? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  6. 6.2.28 + 9.5 = ? (a) 11.78 (b) 11.68 (c) 11.88 (d) 3.23
  7. 7.What is the value of the digit 4 in 24.839? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  8. 8.What is the value of the digit 6 in 68.135? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  9. 9.Which is the smallest: 0.611, 0.7, 0.75, 0.067? (a) 0.611 (b) 0.7 (c) 0.75 (d) 0.067
  10. 10.3.52 + 8.8 = ? (a) 12.22 (b) 4.4 (c) 12.32 (d) 12.42
  11. 11.Which is the greatest: 0.3, 0.31, 0.036, 0.236? (a) 0.3 (b) 0.31 (c) 0.036 (d) 0.236
  12. 12.What is the value of the digit 4 in 87.324? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  13. 13.What is the value of the digit 7 in 86.427? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  14. 14.Which is the smallest: 0.213, 0.058, 0.35, 0.3? (a) 0.213 (b) 0.058 (c) 0.35 (d) 0.3
  15. 15.3.27 + 9.1 = ? (a) 12.27 (b) 12.47 (c) 4.18 (d) 12.37
  16. 16.What is the value of the digit 9 in 28.679? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  17. 17.What is the value of the digit 1 in 21.364? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  18. 18.Which is the greatest: 0.2, 0.21, 0.024, 0.118? (a) 0.2 (b) 0.21 (c) 0.024 (d) 0.118
  19. 19.4.28 + 5.8 = ? (a) 10.18 (b) 4.86 (c) 9.98 (d) 10.08
  20. 20.What is the value of the digit 2 in 57.423? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  21. 21.Which is the smallest: 0.36, 0.239, 0.3, 0.043? (a) 0.36 (b) 0.239 (c) 0.3 (d) 0.043
  22. 22.What is the value of the digit 7 in 68.437? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  23. 23.Which is the smallest: 0.8, 0.722, 0.82, 0.017? (a) 0.8 (b) 0.722 (c) 0.82 (d) 0.017
  24. 24.7.91 + 1.8 = ? (a) 9.81 (b) 8.09 (c) 9.61 (d) 9.71
  25. 25.8.42 + 2.1 = ? (a) 10.62 (b) 8.63 (c) 10.42 (d) 10.52
  26. 26.What is the value of the digit 1 in 17.342? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  27. 27.7.05 + 4.5 = ? (a) 11.65 (b) 7.5 (c) 11.45 (d) 11.55
  28. 28.Which is the smallest: 0.25, 0.092, 0.2, 0.164? (a) 0.25 (b) 0.092 (c) 0.2 (d) 0.164
  29. 29.2.03 + 2.8 = ? (a) 4.83 (b) 4.73 (c) 2.31 (d) 4.93
  30. 30.Which is the smallest: 0.617, 0.028, 0.76, 0.7? (a) 0.617 (b) 0.028 (c) 0.76 (d) 0.7
  31. 31.What is the value of the digit 4 in 61.245? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  32. 32.What is the value of the digit 2 in 75.289? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  33. 33.7.21 + 2.3 = ? (a) 9.61 (b) 9.41 (c) 9.51 (d) 7.44
  34. 34.Which is the smallest: 0.31, 0.057, 0.3, 0.232? (a) 0.31 (b) 0.057 (c) 0.3 (d) 0.232
  35. 35.What is the value of the digit 8 in 61.283? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  36. 36.What is the value of the digit 2 in 17.293? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  37. 37.What is the value of the digit 6 in 65.124? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  38. 38.4.11 + 2.4 = ? (a) 4.35 (b) 6.41 (c) 6.51 (d) 6.61
  39. 39.2.79 + 5.3 = ? (a) 8.09 (b) 7.99 (c) 3.32 (d) 8.19
  40. 40.What is the value of the digit 4 in 51.463? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04

Answer key

  1. 40
  2. 2.95
  3. 0.59
  4. 9
  5. 0.001
  6. 11.78
  7. 4
  8. 60
  9. 0.067
  10. 12.32
  11. 0.31
  12. 0.004
  13. 0.007
  14. 0.058
  15. 12.37
  16. 0.009
  17. 1
  18. 0.21
  19. 10.08
  20. 0.02
  21. 0.043
  22. 0.007
  23. 0.017
  24. 9.71
  25. 10.52
  26. 10
  27. 11.55
  28. 0.092
  29. 4.83
  30. 0.028
  31. 0.04
  32. 0.2
  33. 9.51
  34. 0.057
  35. 0.08
  36. 0.2
  37. 60
  38. 6.51
  39. 8.09
  40. 0.4

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