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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 31 · 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. 1.8.13 + 7.3 = ? (a) 8.86 (b) 15.43 (c) 15.33 (d) 15.53
  2. 2.What is the value of the digit 6 in 14.296? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  3. 3.What is the value of the digit 6 in 68.219? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  4. 4.2.21 + 4.7 = ? (a) 2.68 (b) 6.81 (c) 6.91 (d) 7.01
  5. 5.7.21 + 5.4 = ? (a) 12.71 (b) 12.51 (c) 12.61 (d) 7.75
  6. 6.What is the value of the digit 6 in 69.528? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  7. 7.Which is the smallest: 0.288, 0.3, 0.083, 0.34? (a) 0.288 (b) 0.3 (c) 0.083 (d) 0.34
  8. 8.Which is the greatest: 0.046, 0.67, 0.6, 0.541? (a) 0.046 (b) 0.67 (c) 0.6 (d) 0.541
  9. 9.What is the value of the digit 6 in 93.786? (a) 0.06 (b) 6 (c) 0.6 (d) 0.006
  10. 10.Which is the smallest: 0.042, 0.24, 0.2, 0.113? (a) 0.042 (b) 0.24 (c) 0.2 (d) 0.113
  11. 11.5.56 + 4.6 = ? (a) 10.16 (b) 10.06 (c) 10.26 (d) 6.02
  12. 12.Which is the smallest: 0.016, 0.73, 0.7, 0.647? (a) 0.016 (b) 0.73 (c) 0.7 (d) 0.647
  13. 13.What is the value of the digit 1 in 61.734? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  14. 14.What is the value of the digit 5 in 35.248? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  15. 15.9.12 + 5.3 = ? (a) 14.52 (b) 14.32 (c) 14.42 (d) 9.65
  16. 16.4.52 + 9.1 = ? (a) 5.43 (b) 13.62 (c) 13.52 (d) 13.72
  17. 17.Which is the smallest: 0.011, 0.638, 0.7, 0.79? (a) 0.011 (b) 0.638 (c) 0.7 (d) 0.79
  18. 18.What is the value of the digit 3 in 53.816? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  19. 19.Which is the smallest: 0.2, 0.149, 0.21, 0.083? (a) 0.2 (b) 0.149 (c) 0.21 (d) 0.083
  20. 20.Which is the smallest: 0.49, 0.085, 0.328, 0.4? (a) 0.49 (b) 0.085 (c) 0.328 (d) 0.4
  21. 21.Which is the greatest: 0.656, 0.72, 0.7, 0.053? (a) 0.656 (b) 0.72 (c) 0.7 (d) 0.053
  22. 22.What is the value of the digit 4 in 32.514? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  23. 23.3.93 + 6.1 = ? (a) 4.54 (b) 10.13 (c) 9.93 (d) 10.03
  24. 24.What is the value of the digit 3 in 51.423? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  25. 25.Which is the smallest: 0.22, 0.122, 0.021, 0.2? (a) 0.22 (b) 0.122 (c) 0.021 (d) 0.2
  26. 26.2.72 + 3.7 = ? (a) 6.32 (b) 6.52 (c) 3.09 (d) 6.42
  27. 27.Which is the smallest: 0.513, 0.6, 0.044, 0.65? (a) 0.513 (b) 0.6 (c) 0.044 (d) 0.65
  28. 28.Which is the smallest: 0.493, 0.014, 0.51, 0.5? (a) 0.493 (b) 0.014 (c) 0.51 (d) 0.5
  29. 29.5.36 + 9.8 = ? (a) 15.06 (b) 15.26 (c) 15.16 (d) 6.34
  30. 30.7.61 + 3.8 = ? (a) 11.31 (b) 7.99 (c) 11.51 (d) 11.41
  31. 31.What is the value of the digit 1 in 51.978? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  32. 32.1.27 + 1.4 = ? (a) 2.77 (b) 2.67 (c) 1.41 (d) 2.57
  33. 33.1.93 + 2.6 = ? (a) 4.53 (b) 2.19 (c) 4.43 (d) 4.63
  34. 34.What is the value of the digit 8 in 38.564? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  35. 35.Which is the greatest: 0.72, 0.663, 0.7, 0.069? (a) 0.72 (b) 0.663 (c) 0.7 (d) 0.069
  36. 36.What is the value of the digit 1 in 71.543? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  37. 37.What is the value of the digit 1 in 15.248? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  38. 38.What is the value of the digit 4 in 29.841? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  39. 39.Which is the smallest: 0.627, 0.068, 0.7, 0.76? (a) 0.627 (b) 0.068 (c) 0.7 (d) 0.76
  40. 40.What is the value of the digit 5 in 89.765? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5

Answer key

  1. 15.43
  2. 0.006
  3. 60
  4. 6.91
  5. 12.61
  6. 60
  7. 0.083
  8. 0.67
  9. 0.006
  10. 0.042
  11. 10.16
  12. 0.016
  13. 1
  14. 5
  15. 14.42
  16. 13.62
  17. 0.011
  18. 3
  19. 0.083
  20. 0.085
  21. 0.72
  22. 0.004
  23. 10.03
  24. 0.003
  25. 0.021
  26. 6.42
  27. 0.044
  28. 0.014
  29. 15.16
  30. 11.41
  31. 1
  32. 2.67
  33. 4.53
  34. 8
  35. 0.72
  36. 1
  37. 10
  38. 0.04
  39. 0.068
  40. 0.005

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