How to judge the number of geometry or small cube composed of geometry from three views? Don't use any layer, column or row. I can't understand it. It's better to have a diagram. I don't know anything about three views! I mean from the main view, left view, top view, or from the main view, top view, left view and it gives you two views. How do you judge the other view and know the maximum and minimum number of cubes? (well, it seems a little cumbersome ~)

How to judge the number of geometry or small cube composed of geometry from three views? Don't use any layer, column or row. I can't understand it. It's better to have a diagram. I don't know anything about three views! I mean from the main view, left view, top view, or from the main view, top view, left view and it gives you two views. How do you judge the other view and know the maximum and minimum number of cubes? (well, it seems a little cumbersome ~)

When I look at the three views, I mainly look at the top view
Suppose that the top view is
□□”
The main view is "□
□□”
Then the height of the left column is 1, and the right column may have 1 or 2, depending on the left view
So the left view is: '
□□’
The left view is from left to right
It can be seen that there are 1 in the back row and 2 in the front row
Then according to the right column also has 2, we can get that the number on the top view is 1
1 2
All add up to five cubes
If you don't understand, you can ask me again,

A cube is a three-dimensional figure enclosed by six squares of exactly the same area

Exactly. A closed solid figure enclosed by six squares of exactly equal area is a cube

A three-dimensional figure with four square faces is not necessarily a cube?

Yes
For example, a prism has a pentagon or hexagon at the bottom, the height is equal to the length of the bottom, and the sides are all square, but not cube