Question

What does the carry-in value start as when performing binary addition?

1) 0
2) 1
3) 2
4) Cannot be determined

Answer 1

In binary addition, the carry-in value starts at 0. This initial value is used because there is no carry from a previous computation when you begin adding binary numbers.

Step-by-step explanation:

When performing binary addition, the carry-in value starts as 0. This is because initially, there is nothing to carry over from a previous calculation. Binary addition works similarly to decimal addition, where you also start without a carry-in value. Here's a simple example:

• If we add 1 + 1 in binary, we write 0 and carry over 1 to the next higher bit.
• If we add 1 + 0 or 0 + 1, we write 1 with no carry.
• If we add 0 + 0, we simply write 0 with no carry.

The initial carry-in value is always assumed to be zero unless specified otherwise from a previous computation's carry-over.