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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 986 · 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. 1.6.89 + 2.3 = ? (a) 9.29 (b) 9.09 (c) 7.12 (d) 9.19
  2. 2.Which is the smallest: 0.3, 0.38, 0.289, 0.076? (a) 0.3 (b) 0.38 (c) 0.289 (d) 0.076
  3. 3.What is the value of the digit 2 in 81.452? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  4. 4.What is the value of the digit 1 in 18.237? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  5. 5.What is the value of the digit 2 in 27.518? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  6. 6.6.47 + 7.1 = ? (a) 7.18 (b) 13.47 (c) 13.57 (d) 13.67
  7. 7.Which is the smallest: 0.3, 0.37, 0.053, 0.229? (a) 0.3 (b) 0.37 (c) 0.053 (d) 0.229
  8. 8.7.51 + 3.5 = ? (a) 10.91 (b) 7.86 (c) 11.11 (d) 11.01
  9. 9.1.27 + 3.3 = ? (a) 4.47 (b) 4.57 (c) 4.67 (d) 1.6
  10. 10.What is the value of the digit 7 in 74.368? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  11. 11.What is the value of the digit 3 in 53.619? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  12. 12.What is the value of the digit 9 in 48.796? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  13. 13.What is the value of the digit 9 in 19.843? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  14. 14.What is the value of the digit 5 in 58.763? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  15. 15.5.55 + 1.1 = ? (a) 6.55 (b) 5.66 (c) 6.75 (d) 6.65
  16. 16.What is the value of the digit 8 in 82.179? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  17. 17.Which is the smallest: 0.054, 0.53, 0.435, 0.5? (a) 0.054 (b) 0.53 (c) 0.435 (d) 0.5
  18. 18.Which is the smallest: 0.5, 0.051, 0.467, 0.58? (a) 0.5 (b) 0.051 (c) 0.467 (d) 0.58
  19. 19.Which is the smallest: 0.26, 0.079, 0.165, 0.2? (a) 0.26 (b) 0.079 (c) 0.165 (d) 0.2
  20. 20.6.97 + 6.1 = ? (a) 12.97 (b) 13.17 (c) 13.07 (d) 7.58
  21. 21.4.71 + 8.6 = ? (a) 13.31 (b) 13.41 (c) 13.21 (d) 5.57
  22. 22.7.16 + 5.6 = ? (a) 12.66 (b) 12.76 (c) 12.86 (d) 7.72
  23. 23.Which is the smallest: 0.79, 0.7, 0.097, 0.687? (a) 0.79 (b) 0.7 (c) 0.097 (d) 0.687
  24. 24.8.68 + 1.8 = ? (a) 10.38 (b) 10.48 (c) 10.58 (d) 8.86
  25. 25.What is the value of the digit 7 in 74.593? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  26. 26.1.62 + 2.2 = ? (a) 3.72 (b) 3.92 (c) 3.82 (d) 1.84
  27. 27.6.85 + 3.7 = ? (a) 10.45 (b) 10.65 (c) 10.55 (d) 7.22
  28. 28.7.73 + 2.3 = ? (a) 10.03 (b) 9.93 (c) 7.96 (d) 10.13
  29. 29.Which is the greatest: 0.632, 0.7, 0.76, 0.043? (a) 0.632 (b) 0.7 (c) 0.76 (d) 0.043
  30. 30.Which is the greatest: 0.059, 0.89, 0.768, 0.8? (a) 0.059 (b) 0.89 (c) 0.768 (d) 0.8
  31. 31.1.13 + 2.4 = ? (a) 1.37 (b) 3.53 (c) 3.43 (d) 3.63
  32. 32.What is the value of the digit 9 in 59.316? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  33. 33.8.78 + 5.1 = ? (a) 9.29 (b) 13.78 (c) 13.98 (d) 13.88
  34. 34.2.25 + 5.5 = ? (a) 7.65 (b) 7.85 (c) 7.75 (d) 2.8
  35. 35.Which is the smallest: 0.49, 0.384, 0.083, 0.4? (a) 0.49 (b) 0.384 (c) 0.083 (d) 0.4
  36. 36.Which is the smallest: 0.179, 0.23, 0.066, 0.2? (a) 0.179 (b) 0.23 (c) 0.066 (d) 0.2
  37. 37.What is the value of the digit 4 in 59.478? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  38. 38.What is the value of the digit 1 in 36.812? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  39. 39.4.13 + 1.8 = ? (a) 5.93 (b) 4.31 (c) 6.03 (d) 5.83
  40. 40.1.34 + 1.8 = ? (a) 3.04 (b) 3.24 (c) 3.14 (d) 1.52

Answer key

  1. 9.19
  2. 0.076
  3. 0.002
  4. 10
  5. 20
  6. 13.57
  7. 0.053
  8. 11.01
  9. 4.57
  10. 70
  11. 3
  12. 0.09
  13. 9
  14. 50
  15. 6.65
  16. 80
  17. 0.054
  18. 0.051
  19. 0.079
  20. 13.07
  21. 13.31
  22. 12.76
  23. 0.097
  24. 10.48
  25. 70
  26. 3.82
  27. 10.55
  28. 10.03
  29. 0.76
  30. 0.89
  31. 3.53
  32. 9
  33. 13.88
  34. 7.75
  35. 0.083
  36. 0.066
  37. 0.4
  38. 0.01
  39. 5.93
  40. 3.14

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