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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 843 · 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 8 in 21.489? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  2. 2.Which is the greatest: 0.29, 0.2, 0.117, 0.035? (a) 0.29 (b) 0.2 (c) 0.117 (d) 0.035
  3. 3.Which is the smallest: 0.066, 0.29, 0.2, 0.198? (a) 0.066 (b) 0.29 (c) 0.2 (d) 0.198
  4. 4.6.55 + 1.1 = ? (a) 7.55 (b) 7.65 (c) 7.75 (d) 6.66
  5. 5.Which is the smallest: 0.366, 0.4, 0.45, 0.012? (a) 0.366 (b) 0.4 (c) 0.45 (d) 0.012
  6. 6.Which is the greatest: 0.633, 0.031, 0.73, 0.7? (a) 0.633 (b) 0.031 (c) 0.73 (d) 0.7
  7. 7.Which is the greatest: 0.031, 0.4, 0.46, 0.389? (a) 0.031 (b) 0.4 (c) 0.46 (d) 0.389
  8. 8.What is the value of the digit 3 in 32.148? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  9. 9.1.35 + 1.7 = ? (a) 1.52 (b) 2.95 (c) 3.15 (d) 3.05
  10. 10.What is the value of the digit 8 in 38.947? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  11. 11.7.51 + 1.1 = ? (a) 8.51 (b) 7.62 (c) 8.71 (d) 8.61
  12. 12.7.71 + 3.3 = ? (a) 11.01 (b) 8.04 (c) 11.11 (d) 10.91
  13. 13.What is the value of the digit 9 in 93.718? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  14. 14.1.58 + 1.7 = ? (a) 1.75 (b) 3.28 (c) 3.18 (d) 3.38
  15. 15.Which is the smallest: 0.072, 0.56, 0.5, 0.429? (a) 0.072 (b) 0.56 (c) 0.5 (d) 0.429
  16. 16.6.87 + 9.8 = ? (a) 7.85 (b) 16.57 (c) 16.77 (d) 16.67
  17. 17.What is the value of the digit 7 in 41.673? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  18. 18.Which is the greatest: 0.278, 0.31, 0.032, 0.3? (a) 0.278 (b) 0.31 (c) 0.032 (d) 0.3
  19. 19.4.56 + 3.6 = ? (a) 4.92 (b) 8.26 (c) 8.16 (d) 8.06
  20. 20.What is the value of the digit 6 in 26.184? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  21. 21.Which is the greatest: 0.8, 0.732, 0.061, 0.86? (a) 0.8 (b) 0.732 (c) 0.061 (d) 0.86
  22. 22.What is the value of the digit 2 in 52.814? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  23. 23.What is the value of the digit 7 in 63.579? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  24. 24.Which is the greatest: 0.366, 0.49, 0.4, 0.027? (a) 0.366 (b) 0.49 (c) 0.4 (d) 0.027
  25. 25.9.02 + 4.4 = ? (a) 13.42 (b) 13.52 (c) 9.46 (d) 13.32
  26. 26.3.65 + 6.6 = ? (a) 10.35 (b) 4.31 (c) 10.25 (d) 10.15
  27. 27.6.63 + 8.6 = ? (a) 15.23 (b) 7.49 (c) 15.13 (d) 15.33
  28. 28.What is the value of the digit 7 in 32.716? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  29. 29.6.41 + 3.9 = ? (a) 6.8 (b) 10.21 (c) 10.41 (d) 10.31
  30. 30.9.16 + 1.1 = ? (a) 10.16 (b) 9.27 (c) 10.36 (d) 10.26
  31. 31.Which is the smallest: 0.219, 0.32, 0.3, 0.032? (a) 0.219 (b) 0.32 (c) 0.3 (d) 0.032
  32. 32.8.12 + 3.4 = ? (a) 8.46 (b) 11.62 (c) 11.42 (d) 11.52
  33. 33.Which is the greatest: 0.062, 0.34, 0.218, 0.3? (a) 0.062 (b) 0.34 (c) 0.218 (d) 0.3
  34. 34.1.61 + 4.9 = ? (a) 6.61 (b) 6.41 (c) 2.1 (d) 6.51
  35. 35.Which is the smallest: 0.129, 0.097, 0.21, 0.2? (a) 0.129 (b) 0.097 (c) 0.21 (d) 0.2
  36. 36.5.06 + 2.9 = ? (a) 8.06 (b) 7.96 (c) 5.35 (d) 7.86
  37. 37.Which is the smallest: 0.012, 0.7, 0.698, 0.72? (a) 0.012 (b) 0.7 (c) 0.698 (d) 0.72
  38. 38.Which is the greatest: 0.3, 0.275, 0.011, 0.31? (a) 0.3 (b) 0.275 (c) 0.011 (d) 0.31
  39. 39.What is the value of the digit 5 in 51.482? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  40. 40.7.24 + 6.1 = ? (a) 13.24 (b) 7.85 (c) 13.34 (d) 13.44

Answer key

  1. 0.08
  2. 0.29
  3. 0.066
  4. 7.65
  5. 0.012
  6. 0.73
  7. 0.46
  8. 30
  9. 3.05
  10. 8
  11. 8.61
  12. 11.01
  13. 90
  14. 3.28
  15. 0.072
  16. 16.67
  17. 0.07
  18. 0.31
  19. 8.16
  20. 6
  21. 0.86
  22. 2
  23. 0.07
  24. 0.49
  25. 13.42
  26. 10.25
  27. 15.23
  28. 0.7
  29. 10.31
  30. 10.26
  31. 0.032
  32. 11.52
  33. 0.34
  34. 6.51
  35. 0.097
  36. 7.96
  37. 0.012
  38. 0.31
  39. 50
  40. 13.34

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