Is the smallest single digit 1,0 or 9?

1. A natural number.

The number of digits is called the number of digits. A number with one digit is a single digit, and a number with two digits is a two-digit number. The largest one-digit number is 9, the smallest one-digit number is 1, the largest two-digit number is 99, and the smallest two-digit number is 10.

It cannot be called a single digit. There is a rule in notation that the highest digit of a number cannot be 0.

Why is this so? Because in the absence of such a rule, 0 is a single digit, and it can be concluded that the smallest two-digit number is 00 and the smallest three-digit number is 000, which is obviously incorrect. Not only that, but without such a rule, it is impossible to determine how many digits a number is.

3. For example, 15 is a two-digit number, "015" becomes a three-digit number, and "0015" becomes a four-digit number. In this way, we can call the same number a few digits at will, and the concept of "digits" is not necessary. Therefore, the highest digit of a number cannot be "0".

That is, the smallest single digit is 1, not 0.

The definition of "several digits" is as follows: "A number represented by only one significant digit is called a single digit, and only two significant digits are used, and the number represented by the first digit on the left is a significant digit, which is called a two-digit number......Assuming that 0 also counts as a single digit, is the smallest two-digit number "10" or "00"? Then the smallest three-digit, four-digit ......And how much?

So it's 1

The smallest single digit is 1.

The smallest single digit is 1, not 0. Each Chunshan number of a number has a corresponding digit, and the highest digit cannot be 0. For example, 824 is a three-digit number, which cannot be expressed as 0824 and becomes a four-digit number, but 0824 can be allowed in the encoding.

And there is a 0 in the middle of a number, such as 105, and this 0 is only used to occupy a place. In fact, each digit has its own meaning, each digit represents several ones, ten digits represent several tens, and hundreds represent several hundreds. For example, 136 means that it consists of 1 hundred, 3 tens, and 6 ones.

And 304 means that it is composed of 3 hundreds, 4 ones, 120 means 1 hundred, and 2 tens, that is, when a certain digit is 0, when it represents the composition of its number, it is not necessary to say it to bury the locust. In the first book of third-grade mathematics, there is a problem: the result of multiplying a three-digit number by a one-digit number may be a three-digit number or a four-digit number.

The answer to this question does not contain a single digit, proving that 0 is not a single digit. In summary, 0 is only the smallest natural number, but not the smallest single digit.

Digital Culture:

In ancient Chinese thought, 3 is the cardinal number, 9 is the pole number, in addition to 5 and , 12 also has an important position in ancient culture, in our life in addition to the five elements, five flavors, five organs, five colors and other substances related to 5, there are many related to 12, such as 12 zodiac, 12 hours, 12 months. This idea is also fully reflected in mahjong, where 144 is a square of 12 and 108 is also a multiple of 12.

In addition, in the mahjong rules, it is stipulated that each person draws 13 cards, and 13 times 4 equals 52, which is in line with the rule that there are 52 weeks in a year. It reflects the form of existence of matter, and the number represents the amount of material existence. A feature of data in the computation process, represented by binary digits (zeros and ones).

It depends on its relationship to some special numbers. Such as etc. Example:

9 is 1001 in binary. Because it has 1 8 and 1 1.

Those who believe that "the smallest single digit is 0": because all ten digits are 1, they compare single digits, and because 0 is the smallest digit, so it is less than 1, so it is concluded that 10 is less than 11;

Those who believe that "the smallest digit is 1": because all ten digits are 1, so compare the single digits, because 1 is the smallest digit, so 11 is the smallest in the two digits, so 11 is less than 10, which is obviously wrong.

The definition of "several digits" is as follows: "A number represented by only one significant digit is called a single digit, and only two significant digits are used, and the number represented by the first digit on the left is a significant digit Xiaozhou, which is called a two-digit ......."Assuming that 0 also counts as a single digit, is the smallest two-digit number "10" or "00"? Then the smallest three-digit, four-digit ......And how much is the pulse?

So it's 1

When primary school mathematics textbooks have not classified 0 as a natural number, for example, when people born in the 90s and before were studying in primary school, teachers said that the smallest natural number is 1, which is the smallest number that represents the number of objects, it is the unit of natural numbers, and any natural number is composed of several "1s". The smallest single digit is 1.

Now that 0 has become a natural number, parents and friends will suddenly find that when they tutor their children, how is it different from when they were learning? It's really different, and now it's a natural number to stipulate that 0 is also a natural number. So is the smallest single digit still 1?

The answer is yes. The smallest single digit is 1.

In an integer, the smallest unit of count is 1 (pcs), and when 0 exists alone, it does not occupy digits. When 0 appears at the end or middle of a few digits, it only acts as a "placeholder", indicating that there are no counting units on that bit.

Assuming that 0 is also a single digit, is the smallest two-digit number "10" or "00"? 00 does not have the meaning of a two-digit number.

So, a single digit is a number written from a number that is not 0, and as long as the meaning of several digits remains the same, the smallest single digit is still 1.

Do you understand? Don't get tangled up anymore. 1 is the unit of a natural number, and 0 can be seen as a natural number composed of 0 1s. The smallest single digit is 1, attached:

A few digits: A natural number written with a few digits (the leftmost digit is not 0) is called a few digits.

There is no doubt that 0 is the smallest natural number after classifying 0 as a natural number. So is the smallest single digit 1 or 0?To solve this problem, we must first understand that the "concept of several digits" is usually in natural numbers, and numbers with several digits are called several digits.

A number with one digit is called a single-digit ......For example, 2 is a single digit; 20 is a two-digit number; But be careful: it is generally not said that the number 0 is a few digits.

If 0 is considered as a single number, then "00 can be regarded as a two-digit number" and "000 can be regarded as a three-digit number" ......A number with a value of 0 would be any digit, which doesn't make sense, so the smallest single digit should be 1