Explain simply why 17 is the correct answer to: A local farm is famous for having lots of double yolks in their eggs. One carton of 12 eggs had five eggs with double yolks. How many yolks were in the whole carton?. Explanation:
The carton had 12 - 5 = 7 eggs with one yolk. It had 5 eggs with double yolks, which added * 2 = 10 yolks. Thus, there were 7 + 10 = 17 yolks in the whole carton.