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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 903 · 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: 0.3, 0.029, 0.32, 0.281? (a) 0.3 (b) 0.029 (c) 0.32 (d) 0.281
  2. 2.1.04 + 4.3 = ? (a) 5.24 (b) 1.47 (c) 5.44 (d) 5.34
  3. 3.Which is the greatest: 0.281, 0.35, 0.098, 0.3? (a) 0.281 (b) 0.35 (c) 0.098 (d) 0.3
  4. 4.6.11 + 8.1 = ? (a) 14.11 (b) 14.21 (c) 14.31 (d) 6.92
  5. 5.Which is the smallest: 0.49, 0.322, 0.4, 0.033? (a) 0.49 (b) 0.322 (c) 0.4 (d) 0.033
  6. 6.Which is the greatest: 0.089, 0.47, 0.387, 0.4? (a) 0.089 (b) 0.47 (c) 0.387 (d) 0.4
  7. 7.3.18 + 6.2 = ? (a) 9.38 (b) 9.48 (c) 3.8 (d) 9.28
  8. 8.What is the value of the digit 7 in 29.765? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  9. 9.Which is the greatest: 0.521, 0.023, 0.6, 0.62? (a) 0.521 (b) 0.023 (c) 0.6 (d) 0.62
  10. 10.4.75 + 6.8 = ? (a) 5.43 (b) 11.65 (c) 11.55 (d) 11.45
  11. 11.Which is the smallest: 0.097, 0.23, 0.182, 0.2? (a) 0.097 (b) 0.23 (c) 0.182 (d) 0.2
  12. 12.What is the value of the digit 8 in 68.357? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  13. 13.3.32 + 9.3 = ? (a) 4.25 (b) 12.72 (c) 12.52 (d) 12.62
  14. 14.Which is the greatest: 0.62, 0.6, 0.557, 0.013? (a) 0.62 (b) 0.6 (c) 0.557 (d) 0.013
  15. 15.Which is the greatest: 0.511, 0.082, 0.68, 0.6? (a) 0.511 (b) 0.082 (c) 0.68 (d) 0.6
  16. 16.8.79 + 9.6 = ? (a) 18.29 (b) 18.49 (c) 9.75 (d) 18.39
  17. 17.9.92 + 1.7 = ? (a) 11.52 (b) 10.09 (c) 11.72 (d) 11.62
  18. 18.7.65 + 9.9 = ? (a) 17.55 (b) 17.45 (c) 17.65 (d) 8.64
  19. 19.2.41 + 1.5 = ? (a) 4.01 (b) 2.56 (c) 3.91 (d) 3.81
  20. 20.Which is the greatest: 0.077, 0.66, 0.6, 0.567? (a) 0.077 (b) 0.66 (c) 0.6 (d) 0.567
  21. 21.What is the value of the digit 1 in 23.761? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  22. 22.What is the value of the digit 2 in 26.173? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  23. 23.Which is the greatest: 0.8, 0.753, 0.042, 0.81? (a) 0.8 (b) 0.753 (c) 0.042 (d) 0.81
  24. 24.What is the value of the digit 9 in 86.497? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  25. 25.3.52 + 7.9 = ? (a) 4.31 (b) 11.42 (c) 11.52 (d) 11.32
  26. 26.Which is the smallest: 0.38, 0.237, 0.067, 0.3? (a) 0.38 (b) 0.237 (c) 0.067 (d) 0.3
  27. 27.5.09 + 2.7 = ? (a) 7.79 (b) 7.89 (c) 5.36 (d) 7.69
  28. 28.What is the value of the digit 6 in 52.634? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  29. 29.Which is the greatest: 0.095, 0.511, 0.6, 0.64? (a) 0.095 (b) 0.511 (c) 0.6 (d) 0.64
  30. 30.Which is the greatest: 0.469, 0.058, 0.5, 0.59? (a) 0.469 (b) 0.058 (c) 0.5 (d) 0.59
  31. 31.What is the value of the digit 3 in 14.372? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  32. 32.What is the value of the digit 3 in 59.138? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  33. 33.3.04 + 7.8 = ? (a) 3.82 (b) 10.74 (c) 10.94 (d) 10.84
  34. 34.Which is the greatest: 0.2, 0.143, 0.26, 0.052? (a) 0.2 (b) 0.143 (c) 0.26 (d) 0.052
  35. 35.What is the value of the digit 3 in 13.952? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  36. 36.What is the value of the digit 1 in 76.514? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  37. 37.Which is the smallest: 0.015, 0.458, 0.5, 0.54? (a) 0.015 (b) 0.458 (c) 0.5 (d) 0.54
  38. 38.Which is the smallest: 0.411, 0.59, 0.044, 0.5? (a) 0.411 (b) 0.59 (c) 0.044 (d) 0.5
  39. 39.Which is the smallest: 0.33, 0.083, 0.228, 0.3? (a) 0.33 (b) 0.083 (c) 0.228 (d) 0.3
  40. 40.Which is the smallest: 0.256, 0.3, 0.39, 0.021? (a) 0.256 (b) 0.3 (c) 0.39 (d) 0.021

Answer key

  1. 0.029
  2. 5.34
  3. 0.35
  4. 14.21
  5. 0.033
  6. 0.47
  7. 9.38
  8. 0.7
  9. 0.62
  10. 11.55
  11. 0.097
  12. 8
  13. 12.62
  14. 0.62
  15. 0.68
  16. 18.39
  17. 11.62
  18. 17.55
  19. 3.91
  20. 0.66
  21. 0.001
  22. 20
  23. 0.81
  24. 0.09
  25. 11.42
  26. 0.067
  27. 7.79
  28. 0.6
  29. 0.64
  30. 0.59
  31. 0.3
  32. 0.03
  33. 10.84
  34. 0.26
  35. 3
  36. 0.01
  37. 0.015
  38. 0.044
  39. 0.083
  40. 0.021

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