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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 431 · 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 smallest: 0.44, 0.032, 0.359, 0.4? (a) 0.44 (b) 0.032 (c) 0.359 (d) 0.4
  2. 2.1.32 + 3.6 = ? (a) 4.82 (b) 5.02 (c) 4.92 (d) 1.68
  3. 3.What is the value of the digit 3 in 82.134? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  4. 4.4.72 + 4.2 = ? (a) 9.02 (b) 5.14 (c) 8.92 (d) 8.82
  5. 5.Which is the smallest: 0.8, 0.062, 0.88, 0.736? (a) 0.8 (b) 0.062 (c) 0.88 (d) 0.736
  6. 6.7.99 + 1.2 = ? (a) 9.29 (b) 8.11 (c) 9.19 (d) 9.09
  7. 7.What is the value of the digit 9 in 24.579? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  8. 8.8.29 + 5.7 = ? (a) 14.09 (b) 8.86 (c) 13.99 (d) 13.89
  9. 9.Which is the smallest: 0.542, 0.087, 0.65, 0.6? (a) 0.542 (b) 0.087 (c) 0.65 (d) 0.6
  10. 10.What is the value of the digit 4 in 16.492? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  11. 11.What is the value of the digit 6 in 53.861? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  12. 12.1.78 + 6.5 = ? (a) 8.38 (b) 8.18 (c) 8.28 (d) 2.43
  13. 13.Which is the smallest: 0.5, 0.58, 0.446, 0.071? (a) 0.5 (b) 0.58 (c) 0.446 (d) 0.071
  14. 14.4.31 + 4.2 = ? (a) 8.41 (b) 8.51 (c) 4.73 (d) 8.61
  15. 15.What is the value of the digit 9 in 73.196? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  16. 16.5.38 + 7.6 = ? (a) 13.08 (b) 12.88 (c) 12.98 (d) 6.14
  17. 17.What is the value of the digit 9 in 95.213? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  18. 18.What is the value of the digit 7 in 17.483? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  19. 19.7.47 + 8.3 = ? (a) 15.77 (b) 8.3 (c) 15.87 (d) 15.67
  20. 20.7.19 + 3.4 = ? (a) 7.53 (b) 10.69 (c) 10.59 (d) 10.49
  21. 21.Which is the smallest: 0.6, 0.073, 0.529, 0.68? (a) 0.6 (b) 0.073 (c) 0.529 (d) 0.68
  22. 22.What is the value of the digit 2 in 73.289? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  23. 23.9.02 + 7.3 = ? (a) 16.42 (b) 16.22 (c) 9.75 (d) 16.32
  24. 24.Which is the smallest: 0.796, 0.022, 0.8, 0.88? (a) 0.796 (b) 0.022 (c) 0.8 (d) 0.88
  25. 25.7.82 + 5.9 = ? (a) 8.41 (b) 13.82 (c) 13.72 (d) 13.62
  26. 26.9.52 + 6.1 = ? (a) 15.52 (b) 10.13 (c) 15.72 (d) 15.62
  27. 27.Which is the smallest: 0.637, 0.7, 0.057, 0.71? (a) 0.637 (b) 0.7 (c) 0.057 (d) 0.71
  28. 28.3.51 + 1.1 = ? (a) 4.71 (b) 4.51 (c) 3.62 (d) 4.61
  29. 29.What is the value of the digit 1 in 31.479? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  30. 30.4.77 + 1.7 = ? (a) 4.94 (b) 6.57 (c) 6.37 (d) 6.47
  31. 31.7.04 + 4.3 = ? (a) 11.24 (b) 11.44 (c) 7.47 (d) 11.34
  32. 32.4.25 + 2.3 = ? (a) 6.55 (b) 6.45 (c) 6.65 (d) 4.48
  33. 33.Which is the greatest: 0.54, 0.097, 0.458, 0.5? (a) 0.54 (b) 0.097 (c) 0.458 (d) 0.5
  34. 34.What is the value of the digit 3 in 63.587? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  35. 35.3.51 + 2.5 = ? (a) 6.11 (b) 3.76 (c) 6.01 (d) 5.91
  36. 36.What is the value of the digit 3 in 65.213? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  37. 37.Which is the smallest: 0.178, 0.26, 0.034, 0.2? (a) 0.178 (b) 0.26 (c) 0.034 (d) 0.2
  38. 38.3.78 + 5.8 = ? (a) 4.36 (b) 9.48 (c) 9.58 (d) 9.68
  39. 39.What is the value of the digit 7 in 78.315? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  40. 40.Which is the smallest: 0.078, 0.35, 0.253, 0.3? (a) 0.078 (b) 0.35 (c) 0.253 (d) 0.3

Answer key

  1. 0.032
  2. 4.92
  3. 0.03
  4. 8.92
  5. 0.062
  6. 9.19
  7. 0.009
  8. 13.99
  9. 0.087
  10. 0.4
  11. 0.06
  12. 8.28
  13. 0.071
  14. 8.51
  15. 0.09
  16. 12.98
  17. 90
  18. 7
  19. 15.77
  20. 10.59
  21. 0.073
  22. 0.2
  23. 16.32
  24. 0.022
  25. 13.72
  26. 15.62
  27. 0.057
  28. 4.61
  29. 1
  30. 6.47
  31. 11.34
  32. 6.55
  33. 0.54
  34. 3
  35. 6.01
  36. 0.003
  37. 0.034
  38. 9.58
  39. 70
  40. 0.078

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