One question: Is the distance between Xiao Ming and his grandmother s house one centimeter, one mete

According to the actual situation, the distance from Xiao Ming to his grandmother's house should be one kilometer. Because one centimeter is only about the length of a finger, and one meter is almost as long as a step, it can't leave the house, which is not in line with the actual situation. Therefore, it is more reasonable to choose a kilometer.

Hello, the distance between Xiao Ming and his grandmother's house should be this kilometer, the distance between one centimeter and one meter is too small, it can't be one centimeter and one meter, it can only be a thousand meters.

The distance between Xiao Ming and his grandmother's house is one centimeter, which is impossible. Because a centimeter is about as wide as a little finger.

If it's one meter, it's probably a neighbor. However, this is very unlikely.

It is the most likely to be a kilometer, a kilometer apart.

The distance between Xiao Ming and his grandmother should be one kilometer, which is more appropriate, because if centimeters and meters are used to represent the quantity, these two units are not suitable. So you can only choose kilometers.

In real life, the distance between the two places, whether it is one centimeter or one meter, is too small, and only one kilometer is in line with life, so the distance between Xiao Ming and his grandmother's house should be one kilometer.

The distance between Xiao Ming and his grandmother's house is not a centimeter, nor a meter, but at least a thousand meters.

According to the actual problem, the distance between Xiao Ming and his grandmother's house should be one thousand meters, because one centimeter and one meter are too close.

The distance between Xiao Ming and his grandmother's house will definitely not be one centimeter or one meter, of course it is 1 kilometer, because the distance between one centimeter and one meter is too close and too small, and only 1 kilometer is appropriate.

Judge by intuitive comparison:

One centimeter is about the thickness of a finger, one meter is about one step away, and one kilometer is about the distance of one bus stop.

Therefore, the distance between Xiao Ming and his grandmother's house should be one thousand meters.

Think about the length of one centimeter, one meter, and one kilometer, and you know that the distance between Xiao Ming and his grandmother's house is one kilometer. It is also possible to measure the length of a centimeter and a meter.

At least a thousand meters, isn't it impossible to get out of grandma's door for one meter? A centimeter is even more unlikely.

The distance between Xiao Ming and his grandmother's house is one kilometer.

This is the question of choosing a unit of measurement according to the actual situation.

You should choose 1,000 meters for this question.

Because the distance between a centimeter and a meter is too short, at least a thousand meters.

It should be 1 km. The general distance is expressed in kilometers.

Let's do a reality shift.

One centimeter "the length of the section you stretched out your finger."

One meter "the height of an average adult."

1,000 meters around the playground of a typical school 2-3 times.

Do you think Xiao Ming went to his grandmother's house and walked a finger, which is still half a person's height, or almost 2-3 laps around the school playground.

Solution: It can be known according to the meaning of the question.

a 2 2a (km).

A: Xiao Ming's house is 2a kilometers away from his grandmother's house.

Xiao Ming's house is (300 + 300) + 2 (300 + 300) = 1800 meters away from his grandmother's house.

600+800

1400 meters.

Kilometer A: Xiao Ming's family walked a total of kilometers to his grandmother's house to accompany his grandmother to the hospital.