1, Senior 2 students line up to do exercises, and 9 people stand in a row and 6 rows. How many students are there in Grade One?

Xiaoming practiced calligraphy last night. He wrote nine lines, one * * * six lines. How many Chinese characters did Xiao Ming write last night?

In math class, the teacher asked the students to raise sticks. Tintin erected six rows, a row of nine sticks. Tintin, how many sticks did he put in?