Easy enough to understand. Fɪʀsᴛ ɴᴜᴍʙᴇʀ >> Click the numbers on the first string. Sɪɢɴ >> Click the sign you want (second string.) Sᴇᴄᴏɴᴅ/ʟᴀsᴛ ɴᴜᴍʙᴇʀ >> Click the numbers on the third string. This calculator only supports two numbers.
Want a calculator that supports more characters? 1 2 3 4 5 6 7 8 9 0 + - x * / ÷ √ Here's the link: https://scratch.mit.edu/projects/1288245744/