Press a and b to set the sum and o to change the operation (+,-,*,/). Then, press space to see the answer (r key to round the answer to the nearest whole number if it is a decimal). The sum will be saved in the sums list. To clear this, press c, and to delete the last sum on the list, press d. (Pressing c will also clear a,b,operation and answer, if you just want to clear a,b,operation and answer, press q.) If you want to find the square root of a number, press the s key and enter the number you want to find the square root of. If you press the m key, then the current answer will be added to the memory. Then, if you press a or b and type in m, whichever one you picked will be set to what is in the calculator's memory. The memory only has room for one thing btw.
@FormulaTest @FormulaWolf Sorry about the complicated instructions! :D This is my first calculator and I hope you like it! Simple version: https://scratch.mit.edu/projects/266860489
