This question is about the meaning of the number 12 in tens and digits. We need to find out how much the tenth 1 stands for and how much the second 2 stands for.

Suppose that the number in the tenth place represents A 10, and the number in the second place represents B 1.

As we know, a two-digit decimal number represents the value of 10, and a single digit represents the value of 1 0.

So the tenth 1 is 1× 10= 10. 2 in the unit represents 2× 1=2.

Using the mathematical model, we can express it as: 1× 10= 10, 2× 1=2.

Now we are going to test this model.

The tenth digit of 1 means: 10 10.

2 in the unit stands for 2 1.

The concept of median in mathematics;

Bit value is a mathematical concept, which represents the numerical value that can be stored in the corresponding position of each number in binary numbers. In computer science, bit value is the basic unit of data storage and processing in computer, and it is also the smallest memory unit in computer.

In binary numbers, each number can be expressed as 0 or 1, and the number of digits of this number is called bit value. For example, in the number 10 1 1, the first number 1 represents the power of 1 2, the second number 0 represents the power of 0 2, and the third number1represents/kloc-0. So this number can be expressed as1× 20+0× 21+1× 22+1× 23 =10.

In a computer, each bit value can store two states: high level and low level. When the bit value is 1, the corresponding memory cell will be set to high level; When the bit value is 0, the corresponding memory cell will be set to low level. In this way, each bit value can store the state of a binary number, thus storing and transmitting data in the computer.