Mr. Reilly uses square pieces of fabric that
are each 1 square inch for a rectangular
wall hanging. He uses 81 squares. If he
makes 9 rows of squares, how many
squares will be in each row?

Mr. Reilly is working with a total of 81 square pieces of fabric. If he arranges them into 9 rows, you can easily figure out how many squares are in each row by simply dividing the total number of squares by the number of rows. So, 81 squares divided by 9 rows gives you 9 squares per row. Voilà! A delightful arrangement of 9 squares in each of those 9 rows!

Now, isn’t it interesting to think about how geometric patterns and arrangements have been used throughout history in various cultures? These patterns in textiles often carry cultural significance, telling stories through their designs and color choices, much like how Mr. Reilly tells a story with his 81 squares!