1, Little White Cat and Xiaohua Mall caught as many fish. After giving some to grandma, Little White Cat left two, and Xiaohua Mall left 1. Grandma ate a lot of fish. (tick "√" after the answer you think is correct)

White cat Xiaohua Mall

2. There are () cubes in the following figure 1.

(1) Xiaoqing queues up to do exercises. He ranks seventh in the front and sixth in the back. Xiaoqing's team has () people.

(2) Xiaoqing queues up to do exercises. There are seven students in front of him and six students behind him. Xiaoqing has () people in this team.

4. Fill in the appropriate number in □.

□+□ □+□

5+8= □+□ 7+4= □+□

□ +□□□□□ +□ Hope to adopt! !