Click on the First Cat to put the first value, click on the Second Cat to put the secound value, and lastly click on the Third Cat to see the result. Put your cursor on to the Purple Button and Press Space to change the Summation Method, and click the same button to Calculate. Enjoy :). So enjoy this simple Math solver, but i gonna try upgrade some things soon.
Thanks for @GroovyDominoes for the OST, but i picked from this game: https://scratch.mit.edu/projects/619173644/ . And i also did this with my many other projects because i dont know how to upload sounds to Scratch :(