She has a grade point average of 101.6.

她的平均绩点为 101. 6。

I knew I had to maintain an average grade of 75-84.

我知道我必须保持 75-84 的平均成绩。

You take all of the grades and then you come up with an average grade.

你拿了所有的成绩，然后你得出了一个平均成绩。

And you want to average the student's grade across all three of those tests.

你想平均学生在所有三个测试中的成绩。

But the teacher saw that I was out of sorts and agreed to help me correct my mistakes. So I got an average grade.

但是老师看到我心情不好 就同意帮我改正错误 所以我得到了一个平均分数。