you cant do multiple equastions in one go. for example you cant do 1+1+1 but you can do 1+1 and then 2+1. click colors and pick the one you want. i tried my best on this, what do you think?
making a calcualator on scratch isnt as easy as you would think. for exaample, i could make the number sprite codes like ""when this sprite clicked; set num to 1"'but that would replace whatever number you have atm, eliminating 2+ digit numbers. now, i tried a workaround but that eliminated 3+ digit numbers, so i really had to do some thinking before i figured out how to make unlimited digit numbers