bob needs 60 square feet of cloth. He has a rectangular piece of cloth that measures 3 feet by 9 feet and a square piece that measures 5 feet on a side. Does he have enough cloth? If not, how much more does he need?

Question

9x3=27
+
5x4=20
___________
47 sq ft of cloth. Needs 60 so she needs 13 more sq ft of cloth ????

Answer 1

9 * 2 = 27
BUT
5 * 5 = 25 !!!!!

but still not enough :)