What is the first-year math calculation topic?

is a simple calculation topic for the first grade of primary school, such as:

1. Three rabbits, the black rabbit, the gray rabbit and the white rabbit, are racing. Heimian said, "I'm not the fastest, but I'm faster than the white rabbit." Please tell me, who runs fastest? Who runs the slowest?

) runs the fastest, (

) runs the slowest.

2. Three children compare sizes. According to the following three sentences, please guess who is the biggest? Who is the youngest? (1)

Fangfang is three years older than Yangyang; (2) Yanyan is one year younger than Fangfang; (3) Yan Yan is two years older than Yangyang.

() is the largest and () is the smallest.

3. Guess the age of the three teachers according to the following three sentences.

(1) Miss Wang said, "I am younger than Miss Li." (2) Teacher Zhang said, "I am older than Miss Wang."

(3) Miss Li said, "I am younger than Miss Zhang." The oldest is () and the youngest is ().

4. There are three classes in Guangming Kindergarten. According to the following three sentences, please guess which class has the least number of people. Which class has the largest number of people? (1) There are fewer middle schools than small classes; (2) There are fewer middle classes than large classes; (3) There are more large classes than small classes. () has the least number, and () has the largest number.

5. Three students are taller than each other. A said: I am taller than B; B said: I am shorter than C; C: Say I'm taller than A.. ) is the highest, () is the shortest.

four children weigh themselves. A is heavier than B, B is lighter than C, C is heavier than A, and D is the heaviest. The weight order of these four children is: () > ()> ()> ()。

7. Xiaoqing, Xiaohong, Xiaolin and Xiaoqiang are taller than each other.

Xiaoqing said I was taller than Xiaohong; Xiaolin said Xiaoqiang was shorter than Xiaohong; Xiaoqiang said: Xiaolin is shorter than me.

please write your names in descending order: (), (), (), ().