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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 727 · 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 91.248? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  2. 2.9.31 + 1.3 = ? (a) 9.44 (b) 10.51 (c) 10.61 (d) 10.71
  3. 3.What is the value of the digit 5 in 35.764? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  4. 4.1.64 + 2.3 = ? (a) 1.87 (b) 3.84 (c) 3.94 (d) 4.04
  5. 5.Which is the smallest: 0.474, 0.53, 0.011, 0.5? (a) 0.474 (b) 0.53 (c) 0.011 (d) 0.5
  6. 6.Which is the smallest: 0.049, 0.54, 0.431, 0.5? (a) 0.049 (b) 0.54 (c) 0.431 (d) 0.5
  7. 7.Which is the smallest: 0.529, 0.65, 0.6, 0.013? (a) 0.529 (b) 0.65 (c) 0.6 (d) 0.013
  8. 8.3.12 + 9.9 = ? (a) 4.11 (b) 13.12 (c) 13.02 (d) 12.92
  9. 9.2.31 + 3.9 = ? (a) 6.21 (b) 6.31 (c) 2.7 (d) 6.11
  10. 10.What is the value of the digit 1 in 24.165? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  11. 11.What is the value of the digit 1 in 96.413? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  12. 12.What is the value of the digit 5 in 79.516? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  13. 13.1.57 + 1.7 = ? (a) 3.27 (b) 3.17 (c) 3.37 (d) 1.74
  14. 14.Which is the smallest: 0.073, 0.59, 0.5, 0.429? (a) 0.073 (b) 0.59 (c) 0.5 (d) 0.429
  15. 15.Which is the smallest: 0.633, 0.7, 0.072, 0.76? (a) 0.633 (b) 0.7 (c) 0.072 (d) 0.76
  16. 16.What is the value of the digit 5 in 31.785? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  17. 17.4.02 + 5.6 = ? (a) 9.62 (b) 9.72 (c) 4.58 (d) 9.52
  18. 18.7.45 + 5.9 = ? (a) 13.25 (b) 13.35 (c) 8.04 (d) 13.45
  19. 19.3.54 + 1.1 = ? (a) 4.64 (b) 3.65 (c) 4.54 (d) 4.74
  20. 20.7.39 + 5.8 = ? (a) 7.97 (b) 13.29 (c) 13.09 (d) 13.19
  21. 21.Which is the greatest: 0.73, 0.661, 0.7, 0.035? (a) 0.73 (b) 0.661 (c) 0.7 (d) 0.035
  22. 22.Which is the smallest: 0.049, 0.282, 0.33, 0.3? (a) 0.049 (b) 0.282 (c) 0.33 (d) 0.3
  23. 23.9.08 + 2.7 = ? (a) 11.88 (b) 9.35 (c) 11.78 (d) 11.68
  24. 24.What is the value of the digit 8 in 29.184? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  25. 25.What is the value of the digit 4 in 92.154? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  26. 26.What is the value of the digit 8 in 46.785? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  27. 27.Which is the greatest: 0.79, 0.063, 0.639, 0.7? (a) 0.79 (b) 0.063 (c) 0.639 (d) 0.7
  28. 28.Which is the greatest: 0.7, 0.692, 0.74, 0.029? (a) 0.7 (b) 0.692 (c) 0.74 (d) 0.029
  29. 29.3.55 + 4.1 = ? (a) 7.65 (b) 7.75 (c) 7.55 (d) 3.96
  30. 30.Which is the smallest: 0.029, 0.191, 0.25, 0.2? (a) 0.029 (b) 0.191 (c) 0.25 (d) 0.2
  31. 31.6.77 + 6.6 = ? (a) 13.27 (b) 7.43 (c) 13.47 (d) 13.37
  32. 32.Which is the smallest: 0.5, 0.55, 0.052, 0.491? (a) 0.5 (b) 0.55 (c) 0.052 (d) 0.491
  33. 33.Which is the smallest: 0.088, 0.22, 0.192, 0.2? (a) 0.088 (b) 0.22 (c) 0.192 (d) 0.2
  34. 34.What is the value of the digit 9 in 93.751? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  35. 35.1.72 + 4.3 = ? (a) 2.15 (b) 6.12 (c) 6.02 (d) 5.92
  36. 36.Which is the greatest: 0.043, 0.83, 0.8, 0.721? (a) 0.043 (b) 0.83 (c) 0.8 (d) 0.721
  37. 37.What is the value of the digit 7 in 86.721? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  38. 38.Which is the greatest: 0.064, 0.8, 0.791, 0.87? (a) 0.064 (b) 0.8 (c) 0.791 (d) 0.87
  39. 39.2.01 + 3.6 = ? (a) 5.71 (b) 5.61 (c) 2.37 (d) 5.51
  40. 40.What is the value of the digit 4 in 15.724? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4

Answer key

  1. 0.04
  2. 10.61
  3. 5
  4. 3.94
  5. 0.011
  6. 0.049
  7. 0.013
  8. 13.02
  9. 6.21
  10. 0.1
  11. 0.01
  12. 0.5
  13. 3.27
  14. 0.073
  15. 0.072
  16. 0.005
  17. 9.62
  18. 13.35
  19. 4.64
  20. 13.19
  21. 0.73
  22. 0.049
  23. 11.78
  24. 0.08
  25. 0.004
  26. 0.08
  27. 0.79
  28. 0.74
  29. 7.65
  30. 0.029
  31. 13.37
  32. 0.052
  33. 0.088
  34. 90
  35. 6.02
  36. 0.83
  37. 0.7
  38. 0.87
  39. 5.61
  40. 0.004

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