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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 717 · 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 6 in 83.596? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  2. 2.Which is the greatest: 0.082, 0.22, 0.114, 0.2? (a) 0.082 (b) 0.22 (c) 0.114 (d) 0.2
  3. 3.4.91 + 2.3 = ? (a) 5.14 (b) 7.11 (c) 7.21 (d) 7.31
  4. 4.Which is the greatest: 0.7, 0.74, 0.674, 0.019? (a) 0.7 (b) 0.74 (c) 0.674 (d) 0.019
  5. 5.1.15 + 9.5 = ? (a) 2.1 (b) 10.65 (c) 10.55 (d) 10.75
  6. 6.Which is the greatest: 0.126, 0.052, 0.2, 0.28? (a) 0.126 (b) 0.052 (c) 0.2 (d) 0.28
  7. 7.9.51 + 3.5 = ? (a) 9.86 (b) 12.91 (c) 13.01 (d) 13.11
  8. 8.What is the value of the digit 1 in 65.812? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  9. 9.3.04 + 2.3 = ? (a) 3.27 (b) 5.34 (c) 5.44 (d) 5.24
  10. 10.What is the value of the digit 9 in 69.283? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  11. 11.Which is the smallest: 0.035, 0.86, 0.723, 0.8? (a) 0.035 (b) 0.86 (c) 0.723 (d) 0.8
  12. 12.What is the value of the digit 7 in 15.374? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  13. 13.9.81 + 5.6 = ? (a) 10.37 (b) 15.51 (c) 15.41 (d) 15.31
  14. 14.Which is the greatest: 0.429, 0.59, 0.052, 0.5? (a) 0.429 (b) 0.59 (c) 0.052 (d) 0.5
  15. 15.What is the value of the digit 6 in 68.352? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  16. 16.What is the value of the digit 7 in 74.935? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  17. 17.Which is the greatest: 0.136, 0.22, 0.061, 0.2? (a) 0.136 (b) 0.22 (c) 0.061 (d) 0.2
  18. 18.What is the value of the digit 9 in 95.412? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  19. 19.Which is the smallest: 0.22, 0.026, 0.2, 0.172? (a) 0.22 (b) 0.026 (c) 0.2 (d) 0.172
  20. 20.Which is the smallest: 0.29, 0.147, 0.2, 0.099? (a) 0.29 (b) 0.147 (c) 0.2 (d) 0.099
  21. 21.What is the value of the digit 3 in 26.753? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  22. 22.Which is the smallest: 0.225, 0.081, 0.33, 0.3? (a) 0.225 (b) 0.081 (c) 0.33 (d) 0.3
  23. 23.3.12 + 5.1 = ? (a) 8.32 (b) 3.63 (c) 8.12 (d) 8.22
  24. 24.9.91 + 6.1 = ? (a) 10.52 (b) 16.11 (c) 15.91 (d) 16.01
  25. 25.Which is the greatest: 0.72, 0.099, 0.618, 0.7? (a) 0.72 (b) 0.099 (c) 0.618 (d) 0.7
  26. 26.What is the value of the digit 1 in 65.891? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  27. 27.What is the value of the digit 7 in 92.731? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  28. 28.What is the value of the digit 1 in 83.214? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  29. 29.Which is the smallest: 0.32, 0.042, 0.283, 0.3? (a) 0.32 (b) 0.042 (c) 0.283 (d) 0.3
  30. 30.What is the value of the digit 9 in 12.459? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  31. 31.Which is the greatest: 0.3, 0.285, 0.37, 0.062? (a) 0.3 (b) 0.285 (c) 0.37 (d) 0.062
  32. 32.Which is the smallest: 0.197, 0.25, 0.076, 0.2? (a) 0.197 (b) 0.25 (c) 0.076 (d) 0.2
  33. 33.Which is the greatest: 0.082, 0.515, 0.6, 0.64? (a) 0.082 (b) 0.515 (c) 0.6 (d) 0.64
  34. 34.What is the value of the digit 3 in 19.534? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  35. 35.Which is the greatest: 0.647, 0.77, 0.7, 0.043? (a) 0.647 (b) 0.77 (c) 0.7 (d) 0.043
  36. 36.8.45 + 8.7 = ? (a) 17.25 (b) 9.32 (c) 17.05 (d) 17.15
  37. 37.Which is the greatest: 0.51, 0.5, 0.427, 0.035? (a) 0.51 (b) 0.5 (c) 0.427 (d) 0.035
  38. 38.9.71 + 9.2 = ? (a) 18.81 (b) 10.63 (c) 18.91 (d) 19.01
  39. 39.Which is the smallest: 0.47, 0.334, 0.4, 0.076? (a) 0.47 (b) 0.334 (c) 0.4 (d) 0.076
  40. 40.7.35 + 1.4 = ? (a) 8.85 (b) 7.49 (c) 8.65 (d) 8.75

Answer key

  1. 0.006
  2. 0.22
  3. 7.21
  4. 0.74
  5. 10.65
  6. 0.28
  7. 13.01
  8. 0.01
  9. 5.34
  10. 9
  11. 0.035
  12. 0.07
  13. 15.41
  14. 0.59
  15. 60
  16. 70
  17. 0.22
  18. 90
  19. 0.026
  20. 0.099
  21. 0.003
  22. 0.081
  23. 8.22
  24. 16.01
  25. 0.72
  26. 0.001
  27. 0.7
  28. 0.01
  29. 0.042
  30. 0.009
  31. 0.37
  32. 0.076
  33. 0.64
  34. 0.03
  35. 0.77
  36. 17.15
  37. 0.51
  38. 18.91
  39. 0.076
  40. 8.75

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