This is a calculator that uses the order of operations! You can use addition (+), subtraction (-), multiplication (x), division (/), parenthesis (the ( and ) buttons) and exponents (^). Also, you can have variables! Click the "var" button and type a single-letter variable that you aren't already using. When you click "=," if you have a variable, you have to click "=" again to make the slider appear. Click "CE" to clear (if you have variables, you may have to click it twice). You can use as many parenthesis as you like! However, only lowercase variables. Other than that, you should be good to go!
I made this mostly all by myself, but you don't have to give credit if it helps you with your math homework! Some hacked blocks by @The_Hacker Background by Scratch