The review of the first volume of grade mathematics is coming to an end. It's a bit difficult to share a test paper today. There are several questions that I have never seen before. Therefore, it is necessary to do this real exercise paper well and let the children see more kinds of questions.

Looking at the picture above, this paper is both difficult and interesting, and at the same time, it is rich in diversity and very flexible.

1 The puzzle is the fourth one. First of all, it is a problem of numbers arranged in sequence. In addition, it is more difficult to guess the age of one of the girls, which is unprecedented.

How to train children to do it?

Look at the picture first. Girls who don't know their age are less than 13 and more than 6. So, how old can she be? The answer here is not unique. May be 7, 8, 9, 10, 1 1, 12. As long as the child fills in one of the numbers, it is correct.

There is also the fifth question in the picture above, which is also an unknown question type.

Three boxes of watercolor pens, two boxes are sweet, so how many possibilities are there, at most? How many people at least? All first-year students need to think carefully before getting the answer.

The third question, an unheard-of question type, is the second minor issue of the second major topic.

This problem is more difficult than the previous fill-in-the-blank problem Where is the difficulty? There are formulas on both sides of the equal sign. Many first-year students don't understand how to fill in this equation. In fact, as long as they understand the meaning of the equal sign, how many sides there are, and the calculation results on both sides are the same, they will understand the method.