The Cat in the Hat caught 5 fish plus one-half of the total catch. How many fish did he catch?

In a family, a brother has as many sisters as brothers, but each of his sisters has half as many sisters as brothers. How many children are there in the family?

Fold a single piece of paper in such a way that with a single straight cut you make a 5-pointed star. Now fold another piece of paper to make a heart with a single straight cut.

© 2017 by the Cambridge Math Circle, Inc.

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