Exam-style question
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What is 101101₂ expressed in decimal?.
- A.41₁₀
- B.43₁₀
- C.45₁₀
- D.47₁₀
Model answer
What a good answer should say
- 45₁₀
Explanation
Why this works
The binary place values are 32, 16, 8, 4, 2 and 1. Therefore, 101101₂ = 32 + 8 + 4 + 1 = 45₁₀.
Common mistake
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