For this project, I created a simple calculator. The first picture is a top-level block diagram created in Quartus Prime. I used Verilog to code the components and then assembled it all as a block diagram. When completed and compiled, I programmed an Altera DE2-115 board to demonstrate my calculator. The second picture is an example of the full adders and subtractors used in this project. To simplify steps, a symbol was created before I added these components to my top-level diagram.