What is the binary sum of 1 and 0?

What is the binary sum of 1 and 0?

• A. 1
• B. 0
• C. 10
• D. 01

Answer: (A)

Binary addition adds each position separately. When you add 1 and 0 in the same position, you get 1 and there’s no carry to the next position. So the result is 1, which in binary represents the value one. The other possibilities don’t fit this operation: 0 would require both inputs to be 0, 10 represents the binary value two (which would need a carry or different inputs), and 01 is just the same value written with a leading zero rather than the standard single-bit result.

Binary addition adds each position separately. When you add 1 and 0 in the same position, you get 1 and there’s no carry to the next position. So the result is 1, which in binary represents the value one. The other possibilities don’t fit this operation: 0 would require both inputs to be 0, 10 represents the binary value two (which would need a carry or different inputs), and 01 is just the same value written with a leading zero rather than the standard single-bit result.