1. Today, I found many math problems at home. For example, there are 9 stairs on each floor of our corridor, a total of 5 floors, so there are 45 stairs. My mother asked me how many hands there are in my family. One has two hands and five people have several hands. I immediately replied: "There are 10 hands." At lunch, everyone used two chopsticks, and I took 10 chopsticks for five people. Mom told me that there are many math problems around us, so you should look for them carefully.

2. During the summer vacation, my mother signed me up for a swimming class in Huainan and asked me to learn swimming. On the first day, my mother and I took a bus to 6 yuan and stayed in the fitness center for 40 minutes. The fitness center has five floors and the swimming pool is on the third floor. The swimming pool is very big, with eight floors of waterways. 15 Children learn to swim. After 12 days of study and training, I finally learned to swim. The coach praised me as a persevering little man!