500
Mrs. H has 6 houses. In each house, she keeps 6 cats. Each cat has 6 whiskers, on each whisker sits 6 fleas.
Houses, cats, whiskers, and fleas - how many is there in all??
6 houses
6 x 6= 36 cats
36 x 6 = 216 whiskers
216 x 6 = 1,296 fleas
So 6+36+216+1,296 = 1,554 in ALL!