Fill in the blanks is really not to add, subtract, multiply and divide the numbers in the test questions, or to divide the scores in the test questions by one. ? Otherwise, the answer is likely to be one or zero.

If you can't choose, you can exclude A and D from throwing pens between BC, and choose a few.

Just do the math slowly.

As long as you pay attention to the neatness of the paper, you will rarely get points deducted because of the operation questions.

Application problems ... look at the examples in the textbook ...

Still depends on luck.

Good luck in the exam ~ ~ ~

I hope I can help you.