2.1.6 required us to build circuits with at least three inputs and one output, utilizing logic to complete a task. I decided to make a 3-bit adder, which has six inputs and four outputs.
In the circuits shown, the Y LEDs are the output (represented in binary). S3, S2, and S1 represent the first addend; B3, B2, and B1 are the second. In the image above, the addends 6 and 0 produce a sum of 6. Below, 6 and 2 produce a sum of 8.