Math Bath

Four rubber duckies floating in the tub, singing rub a dub dub, one float away, theres only three rubber duckies floating in the tub, singing rub a dub dub, another float away, you only have two rubber duckies floating in the tub, singing rub a dub dub, two rubber duckies floating in the tub, singing rub a dub dub, one float away, you only have one rubber ducky, sitting in the tub, hell be lonely ...