I have an aquarium with striped fish.  Some of the fish have 3 stripes, some have 5 stripes, and some have 6 stripes.  Altogether I count 19 stripes.  How many fish are in my aquarium?

Show your work.












For 4th and 5th graders:  Suppose I counted 37 stripes.  How many fish are now in the aquarium?