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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 221 · 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.Which is the greatest: 0.045, 0.5, 0.428, 0.53? (a) 0.045 (b) 0.5 (c) 0.428 (d) 0.53
  2. 2.8.36 + 3.6 = ? (a) 12.06 (b) 8.72 (c) 11.86 (d) 11.96
  3. 3.What is the value of the digit 2 in 28.913? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  4. 4.What is the value of the digit 4 in 27.451? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  5. 5.2.25 + 5.4 = ? (a) 2.79 (b) 7.55 (c) 7.75 (d) 7.65
  6. 6.6.41 + 9.3 = ? (a) 7.34 (b) 15.81 (c) 15.61 (d) 15.71
  7. 7.What is the value of the digit 7 in 86.752? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  8. 8.What is the value of the digit 3 in 31.786? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  9. 9.4.04 + 2.7 = ? (a) 6.74 (b) 6.84 (c) 4.31 (d) 6.64
  10. 10.1.27 + 1.9 = ? (a) 1.46 (b) 3.07 (c) 3.17 (d) 3.27
  11. 11.4.26 + 1.6 = ? (a) 5.96 (b) 5.76 (c) 4.42 (d) 5.86
  12. 12.2.64 + 2.7 = ? (a) 5.44 (b) 5.24 (c) 5.34 (d) 2.91
  13. 13.What is the value of the digit 9 in 48.796? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  14. 14.What is the value of the digit 2 in 89.253? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  15. 15.What is the value of the digit 1 in 18.349? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  16. 16.Which is the smallest: 0.275, 0.3, 0.37, 0.065? (a) 0.275 (b) 0.3 (c) 0.37 (d) 0.065
  17. 17.Which is the greatest: 0.385, 0.089, 0.4, 0.48? (a) 0.385 (b) 0.089 (c) 0.4 (d) 0.48
  18. 18.Which is the greatest: 0.087, 0.2, 0.131, 0.25? (a) 0.087 (b) 0.2 (c) 0.131 (d) 0.25
  19. 19.9.61 + 4.9 = ? (a) 14.51 (b) 14.41 (c) 14.61 (d) 10.1
  20. 20.What is the value of the digit 2 in 94.132? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  21. 21.Which is the smallest: 0.046, 0.53, 0.5, 0.431? (a) 0.046 (b) 0.53 (c) 0.5 (d) 0.431
  22. 22.Which is the smallest: 0.715, 0.87, 0.047, 0.8? (a) 0.715 (b) 0.87 (c) 0.047 (d) 0.8
  23. 23.What is the value of the digit 8 in 14.823? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  24. 24.7.88 + 2.4 = ? (a) 10.38 (b) 10.18 (c) 8.12 (d) 10.28
  25. 25.2.52 + 2.6 = ? (a) 5.02 (b) 5.22 (c) 2.78 (d) 5.12
  26. 26.2.44 + 9.1 = ? (a) 11.64 (b) 11.54 (c) 3.35 (d) 11.44
  27. 27.What is the value of the digit 1 in 21.865? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  28. 28.Which is the smallest: 0.28, 0.2, 0.145, 0.014? (a) 0.28 (b) 0.2 (c) 0.145 (d) 0.014
  29. 29.What is the value of the digit 4 in 25.647? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  30. 30.What is the value of the digit 6 in 72.963? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  31. 31.Which is the smallest: 0.22, 0.2, 0.034, 0.192? (a) 0.22 (b) 0.2 (c) 0.034 (d) 0.192
  32. 32.Which is the greatest: 0.63, 0.096, 0.572, 0.6? (a) 0.63 (b) 0.096 (c) 0.572 (d) 0.6
  33. 33.What is the value of the digit 2 in 37.826? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  34. 34.Which is the smallest: 0.058, 0.4, 0.45, 0.376? (a) 0.058 (b) 0.4 (c) 0.45 (d) 0.376
  35. 35.3.54 + 7.3 = ? (a) 10.94 (b) 10.74 (c) 4.27 (d) 10.84
  36. 36.What is the value of the digit 1 in 76.142? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  37. 37.Which is the greatest: 0.051, 0.52, 0.5, 0.476? (a) 0.051 (b) 0.52 (c) 0.5 (d) 0.476
  38. 38.What is the value of the digit 6 in 35.286? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  39. 39.3.82 + 3.3 = ? (a) 7.22 (b) 4.15 (c) 7.02 (d) 7.12
  40. 40.Which is the smallest: 0.45, 0.363, 0.053, 0.4? (a) 0.45 (b) 0.363 (c) 0.053 (d) 0.4

Answer key

  1. 0.53
  2. 11.96
  3. 20
  4. 0.4
  5. 7.65
  6. 15.71
  7. 0.7
  8. 30
  9. 6.74
  10. 3.17
  11. 5.86
  12. 5.34
  13. 0.09
  14. 0.2
  15. 10
  16. 0.065
  17. 0.48
  18. 0.25
  19. 14.51
  20. 0.002
  21. 0.046
  22. 0.047
  23. 0.8
  24. 10.28
  25. 5.12
  26. 11.54
  27. 1
  28. 0.014
  29. 0.04
  30. 0.06
  31. 0.034
  32. 0.63
  33. 0.02
  34. 0.058
  35. 10.84
  36. 0.1
  37. 0.52
  38. 0.006
  39. 7.12
  40. 0.053

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