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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 584 · 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 1 in 14.328? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  2. 2.6.36 + 7.5 = ? (a) 13.76 (b) 13.96 (c) 13.86 (d) 7.11
  3. 3.9.04 + 1.6 = ? (a) 10.74 (b) 10.64 (c) 10.54 (d) 9.2
  4. 4.Which is the smallest: 0.422, 0.082, 0.5, 0.55? (a) 0.422 (b) 0.082 (c) 0.5 (d) 0.55
  5. 5.What is the value of the digit 5 in 23.589? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  6. 6.What is the value of the digit 4 in 34.275? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  7. 7.9.01 + 6.1 = ? (a) 9.62 (b) 15.11 (c) 15.01 (d) 15.21
  8. 8.2.01 + 9.9 = ? (a) 11.81 (b) 11.91 (c) 12.01 (d) 3
  9. 9.Which is the greatest: 0.015, 0.33, 0.3, 0.272? (a) 0.015 (b) 0.33 (c) 0.3 (d) 0.272
  10. 10.What is the value of the digit 1 in 12.963? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  11. 11.3.92 + 3.5 = ? (a) 4.27 (b) 7.42 (c) 7.52 (d) 7.32
  12. 12.Which is the greatest: 0.5, 0.019, 0.57, 0.429? (a) 0.5 (b) 0.019 (c) 0.57 (d) 0.429
  13. 13.Which is the greatest: 0.026, 0.3, 0.32, 0.257? (a) 0.026 (b) 0.3 (c) 0.32 (d) 0.257
  14. 14.Which is the greatest: 0.327, 0.4, 0.014, 0.42? (a) 0.327 (b) 0.4 (c) 0.014 (d) 0.42
  15. 15.Which is the greatest: 0.385, 0.4, 0.021, 0.48? (a) 0.385 (b) 0.4 (c) 0.021 (d) 0.48
  16. 16.Which is the smallest: 0.011, 0.82, 0.763, 0.8? (a) 0.011 (b) 0.82 (c) 0.763 (d) 0.8
  17. 17.Which is the greatest: 0.4, 0.045, 0.43, 0.365? (a) 0.4 (b) 0.045 (c) 0.43 (d) 0.365
  18. 18.Which is the greatest: 0.436, 0.035, 0.51, 0.5? (a) 0.436 (b) 0.035 (c) 0.51 (d) 0.5
  19. 19.2.13 + 6.5 = ? (a) 8.73 (b) 2.78 (c) 8.53 (d) 8.63
  20. 20.Which is the greatest: 0.093, 0.73, 0.656, 0.7? (a) 0.093 (b) 0.73 (c) 0.656 (d) 0.7
  21. 21.What is the value of the digit 9 in 18.496? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  22. 22.What is the value of the digit 1 in 16.945? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  23. 23.What is the value of the digit 8 in 41.238? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  24. 24.What is the value of the digit 5 in 23.956? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  25. 25.2.48 + 3.7 = ? (a) 6.28 (b) 2.85 (c) 6.08 (d) 6.18
  26. 26.What is the value of the digit 4 in 28.964? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  27. 27.5.42 + 7.1 = ? (a) 6.13 (b) 12.42 (c) 12.62 (d) 12.52
  28. 28.Which is the smallest: 0.368, 0.49, 0.085, 0.4? (a) 0.368 (b) 0.49 (c) 0.085 (d) 0.4
  29. 29.Which is the smallest: 0.637, 0.71, 0.7, 0.025? (a) 0.637 (b) 0.71 (c) 0.7 (d) 0.025
  30. 30.6.76 + 1.6 = ? (a) 8.36 (b) 8.26 (c) 6.92 (d) 8.46
  31. 31.Which is the greatest: 0.018, 0.72, 0.672, 0.7? (a) 0.018 (b) 0.72 (c) 0.672 (d) 0.7
  32. 32.What is the value of the digit 4 in 48.516? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  33. 33.3.79 + 1.9 = ? (a) 3.98 (b) 5.69 (c) 5.79 (d) 5.59
  34. 34.9.96 + 1.3 = ? (a) 11.26 (b) 11.36 (c) 11.16 (d) 10.09
  35. 35.Which is the smallest: 0.6, 0.69, 0.562, 0.061? (a) 0.6 (b) 0.69 (c) 0.562 (d) 0.061
  36. 36.What is the value of the digit 3 in 38.549? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  37. 37.Which is the greatest: 0.77, 0.692, 0.088, 0.7? (a) 0.77 (b) 0.692 (c) 0.088 (d) 0.7
  38. 38.Which is the smallest: 0.7, 0.082, 0.79, 0.638? (a) 0.7 (b) 0.082 (c) 0.79 (d) 0.638
  39. 39.7.34 + 3.8 = ? (a) 7.72 (b) 11.14 (c) 11.24 (d) 11.04
  40. 40.What is the value of the digit 1 in 51.932? (a) 0.01 (b) 1 (c) 0.1 (d) 10

Answer key

  1. 10
  2. 13.86
  3. 10.64
  4. 0.082
  5. 0.5
  6. 4
  7. 15.11
  8. 11.91
  9. 0.33
  10. 10
  11. 7.42
  12. 0.57
  13. 0.32
  14. 0.42
  15. 0.48
  16. 0.011
  17. 0.43
  18. 0.51
  19. 8.63
  20. 0.73
  21. 0.09
  22. 10
  23. 0.008
  24. 0.05
  25. 6.18
  26. 0.004
  27. 12.52
  28. 0.085
  29. 0.025
  30. 8.36
  31. 0.72
  32. 40
  33. 5.69
  34. 11.26
  35. 0.061
  36. 30
  37. 0.77
  38. 0.082
  39. 11.14
  40. 1

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