MathPup Invaders 2 Rounding

Round up all of the space invaders on each level and send them packing before they land.  Just round their numbers to the nearest 10 to get rid of them.

Get rid of the saucers by having MathPup toss the number at them that their number rounds to.  Use left and right arrow keys to move MathPup left and right and the up arrow key to have MathPup toss the number ball.  For touch devices use the on-screen buttons.