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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 488 · 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 82.164? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  2. 2.What is the value of the digit 6 in 74.916? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  3. 3.9.45 + 2.5 = ? (a) 11.85 (b) 12.05 (c) 9.7 (d) 11.95
  4. 4.What is the value of the digit 6 in 26.351? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  5. 5.9.47 + 4.2 = ? (a) 13.57 (b) 13.77 (c) 13.67 (d) 9.89
  6. 6.What is the value of the digit 8 in 84.365? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  7. 7.9.56 + 3.6 = ? (a) 13.06 (b) 13.16 (c) 9.92 (d) 13.26
  8. 8.7.67 + 2.4 = ? (a) 7.91 (b) 9.97 (c) 10.07 (d) 10.17
  9. 9.9.73 + 7.1 = ? (a) 16.73 (b) 16.83 (c) 16.93 (d) 10.44
  10. 10.What is the value of the digit 6 in 51.896? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  11. 11.3.56 + 7.1 = ? (a) 10.76 (b) 10.56 (c) 10.66 (d) 4.27
  12. 12.What is the value of the digit 4 in 82.347? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  13. 13.3.81 + 6.1 = ? (a) 9.91 (b) 10.01 (c) 9.81 (d) 4.42
  14. 14.2.28 + 9.7 = ? (a) 11.88 (b) 3.25 (c) 11.98 (d) 12.08
  15. 15.3.81 + 8.7 = ? (a) 12.61 (b) 12.51 (c) 4.68 (d) 12.41
  16. 16.Which is the smallest: 0.091, 0.2, 0.27, 0.165? (a) 0.091 (b) 0.2 (c) 0.27 (d) 0.165
  17. 17.9.46 + 4.5 = ? (a) 9.91 (b) 13.86 (c) 14.06 (d) 13.96
  18. 18.What is the value of the digit 3 in 79.138? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  19. 19.3.64 + 3.1 = ? (a) 6.84 (b) 6.64 (c) 6.74 (d) 3.95
  20. 20.What is the value of the digit 2 in 62.398? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  21. 21.Which is the greatest: 0.295, 0.39, 0.3, 0.023? (a) 0.295 (b) 0.39 (c) 0.3 (d) 0.023
  22. 22.7.76 + 8.1 = ? (a) 8.57 (b) 15.76 (c) 15.86 (d) 15.96
  23. 23.Which is the smallest: 0.123, 0.024, 0.25, 0.2? (a) 0.123 (b) 0.024 (c) 0.25 (d) 0.2
  24. 24.Which is the greatest: 0.018, 0.51, 0.495, 0.5? (a) 0.018 (b) 0.51 (c) 0.495 (d) 0.5
  25. 25.5.48 + 2.6 = ? (a) 7.98 (b) 5.74 (c) 8.08 (d) 8.18
  26. 26.What is the value of the digit 7 in 37.812? (a) 0.7 (b) 0.07 (c) 70 (d) 7
  27. 27.What is the value of the digit 6 in 15.236? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  28. 28.7.55 + 7.9 = ? (a) 8.34 (b) 15.45 (c) 15.55 (d) 15.35
  29. 29.Which is the greatest: 0.29, 0.065, 0.181, 0.2? (a) 0.29 (b) 0.065 (c) 0.181 (d) 0.2
  30. 30.Which is the smallest: 0.017, 0.51, 0.5, 0.432? (a) 0.017 (b) 0.51 (c) 0.5 (d) 0.432
  31. 31.2.65 + 4.5 = ? (a) 7.05 (b) 7.25 (c) 7.15 (d) 3.1
  32. 32.Which is the greatest: 0.088, 0.5, 0.476, 0.53? (a) 0.088 (b) 0.5 (c) 0.476 (d) 0.53
  33. 33.Which is the smallest: 0.114, 0.034, 0.24, 0.2? (a) 0.114 (b) 0.034 (c) 0.24 (d) 0.2
  34. 34.3.89 + 9.9 = ? (a) 4.88 (b) 13.69 (c) 13.89 (d) 13.79
  35. 35.Which is the greatest: 0.773, 0.8, 0.81, 0.092? (a) 0.773 (b) 0.8 (c) 0.81 (d) 0.092
  36. 36.Which is the smallest: 0.5, 0.439, 0.099, 0.56? (a) 0.5 (b) 0.439 (c) 0.099 (d) 0.56
  37. 37.1.89 + 1.3 = ? (a) 3.19 (b) 2.02 (c) 3.29 (d) 3.09
  38. 38.Which is the smallest: 0.48, 0.399, 0.086, 0.4? (a) 0.48 (b) 0.399 (c) 0.086 (d) 0.4
  39. 39.What is the value of the digit 2 in 35.721? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  40. 40.What is the value of the digit 9 in 21.569? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009

Answer key

  1. 0.004
  2. 0.006
  3. 11.95
  4. 6
  5. 13.67
  6. 80
  7. 13.16
  8. 10.07
  9. 16.83
  10. 0.006
  11. 10.66
  12. 0.04
  13. 9.91
  14. 11.98
  15. 12.51
  16. 0.091
  17. 13.96
  18. 0.03
  19. 6.74
  20. 2
  21. 0.39
  22. 15.86
  23. 0.024
  24. 0.51
  25. 8.08
  26. 7
  27. 0.006
  28. 15.45
  29. 0.29
  30. 0.017
  31. 7.15
  32. 0.53
  33. 0.034
  34. 13.79
  35. 0.81
  36. 0.099
  37. 3.19
  38. 0.086
  39. 0.02
  40. 0.009

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