摘要
There are 8 questions in total, presenting various different question types. While you attempt to resolve the problems, remember to be creative. During accomplishing these flexible mathemati- cal exercises, you can inspire your mathematical thinking. 1. A survey showed that of 100 high school students, 50 of them took biology, 20 took chemis 2. try, and 12 took both. How many of the 100 Richey bought a nickels and dime ceive 80 cents in students took neither biology nor chemistry？ pack of gum and received 80 cents back in change. The clerk gave him all Richey＇s friend Ben said, ＂There are seven possible ways you could re dimes, nickels or a combination of both. ＂
There are 9 questions in total, presenting various different question types. While you attempt to resolve the problems, remember to be creative. During accomplishing these flexible mathemati- cal exercises, you can inspire your mathematical thinking.
