Exam-style question
Try this first
What is 1011₂ + 0110₂?.
- A.10001₂
- B.10000₂
- C.1111₂
- D.11001₂
Model answer
What a good answer should say
- 10001₂
Explanation
Why this works
Add from right to left: 1 + 0 = 1, 1 + 1 = 10, 0 + 1 + 1 carried = 10, and 1 + 0 + 1 carried = 10. The result is 10001₂.
Common mistake
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