First of all, I think there is something wrong with the score setting of this question. The second question has three answers, each with 2 points and the third with 4 points. The method is 1 min, and the steps are 3 points. This is not just my own opinion. Our math teacher in Shanxi is also very good, which is what I said.

1.2 I got it right, and only 1 point was given for the third question. In the next step, I got 6 points because of an incorrect data. I was so distressed that I finally got 1 14.