This is kinda just a school project, but if you want to use it, go ahead. The equations you would use this for might look like this, (–9b+1)+(8b–1) or If you press 1, a -1 goes to your mouse, 2 for 1, 3 for -x, and 4 for x. If you press the left and right arrows, you can change if it's an addition or subtraction problem. The trash can is just a cool addition for the project. It doesn't do any but keep any blocks you don't want. ALL BLOCKS GO AWAY WHEN YOU PRESS CLEAR, NOT JUST THE ONES IN THE TRASH CAN.
I don't know how to make the blocks go back to their first stage, so you can just put them in the trash can and get a new one.
