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How to compare several exercises in mathematics in grade one?
How to compare several exercises in mathematics in grade one?

1, with 50 students and 2 teachers. One bottle of water per person, is 48 bottles enough? How many bottles of water does a person have?

2. Xiaoyue and Xiaojun lost 16 paper boats, including 6 yellow ones. Abortion breaks nine. How much did Xiaojun discount?

Xiaoming ranks first in the team, Xiaohua ranks eighth in the team. How many people are there between Xiaoming and Xiaohua?

Stand in a row, counting from the back, Xiaohong stands third and Xiaoming stands eighth. How many people are there in between?

Answer: 8-3- 1=4 (pieces)

A: There are four of them.

5, 10 people lined up, from the back, Xiao Min stood in the second place; Xiaohua stood in the second place before walking back and forth from behind. How many people are there between Xiao Min and Xiaohua?

Answer: 10-2-2=6 (pieces)

There are six people in Xiao Min and Xiaohua.

6. Standing in a row, Xiaoli is the fourth from the bottom, and after turning back, she is also the fourth from the bottom. Xiao Ming stands in the first row and Xiao Jun stands in the last row. How many people are there between Xiaoming and Xiaojun?

Answer: This question requires the total number of people in the team: 4+4- 1=7 (individuals).

Take the lead again, and finally miss the total number of children's words: 7- 1- 1=5 (1)

There are five people between Xiaoming and Xiaojun.

Type of application question:

Application problem is to describe relevant facts in language or words and reflect some mathematical relationship (such as quantitative relationship, positional relationship, etc.) ) and solved an unknown number of problems. Each application problem includes known conditions and problems.

Mathematics application problems in primary schools are usually divided into two categories: simple application problems that can be solved in one step only by addition, subtraction, multiplication and division; Complex application problems that need two or more operations to solve.