First, enter type of operation (addition, subtraction, division, multiplication, modulus), the the first number, then the second number. You have to type the operation type like I just said. STOP SAYING IT DOESN'T WORK! Instead, read the instructions.
The calculator is from Google Images. Scripts entirely by me. I'm in the middle of changing something right now... come back when it's done to see it if you want, in a few days. Updates: v2: Added modulus v1: Shared, has 4 basic operations
