A set of all natural numbers less than 10. 0, isn't it? Why?

Zero is a natural number. It seems that nine years ago, zero was defined as a non natural number, but after academic discussion, now zero is defined as a natural number. If you are born in the late 80s or 90s, you should start to receive education from primary school, that is, you should be taught that zero is a natural number

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1. A set of squares of natural numbers
2. The description of whether {the complete square of the five most decimal points in natural number} belongs to a set Does {the complete square of the five most decimal points in natural number} belong to the description of set?
3. In the natural number within 10, find out three different prime numbers to form a three digit number, so that the number is a multiple of 2 and 3 at the same time. The number may be ()
4. There are six different primes written on the six cards. The sum of the three fractions composed of these six numbers is 1001 parts a, where a is a natural number. Find the minimum value of A
5. Six cards are written with six different prime numbers. The sum of three fractions made up of these six numbers is a / 1001, where a is a natural number. What is the minimum value of a?
6. If n is a natural number, then the 2n + 1 power of (- 3) plus the 2n power of 3 (- 3) =?
7. Let n be the nth power of natural number (- 1) + (- 1) n plus 1 power divided by 2 The value might be 0, - 1, which is 1
8. If a natural number is a multiple of 3 and 4, and there are 10 divisors including 1 and itself, then the natural number is______ ．
9. Decimal natural numbers can be written as polynomials of decreasing power of 2, such as: 19 (10) = 16 + 2 + 1 = 1 × 24 + 0 × 23 + 0 × 22 + 1 × 21 + 1 × 20 = 10011 (2) Decimal natural numbers can be written as polynomials of decreasing power of 2, such as: 19 (10) = 16 + 2 + 1 = 1 × 24 + 0 × 23 + 0 × 22 + 1 × 21 + 1 × 20 = 10011 (2), that is, decimal number 19 corresponds to binary number 10011. According to the above rules, decimal number 353 corresponds to binary number 10011
10. Using descriptive method to express "a set of all natural numbers greater than 10" as______ ．
11. A set of all natural numbers less than 10 Can you say that {(negative infinity, 10)} If not, please point out why
12. What is natural number?
13. On the natural number of Mathematics Do natural numbers contain 0? Question: any two natural numbers have a common factor 1. Who knows? And: 2 / 3 is greater than x interval (just one interval, useless) x is less than 2 / 5? The first aspect of judgment is: check and difference.
14. The sum of three continuous natural numbers is 27, and the three natural numbers are 1. The sum of three continuous natural numbers is 27, and the three natural numbers are 2. The sum of the subtracted, the subtracted and the difference is 100, and the subtracted is 100 3. If the subtraction and difference are subtracted to 0, then the subtracted (the divisor is not 0) is subtracted Today is the day The last question, Xiaoqiao is doing a division formula. The original question is a divided by B. accidentally, B divided by a = 0. So what's the answer to the original formula? The power of the tractor is 5.0 * 10 cubic watts. What is the meaning of it? I don't understand the meaning of the subject
15. How to calculate the exponent of power operation if it is a decimal
16. Calculation of power 2 to the power of 2006 - 2 to the power of 2005 - 2 to the power of 2004 - -2 to the power of 2 - 1 to the power of 2 - 0 to the power of 2
17. I don't know how to calculate power
18. What's the difference between Newton's binomial formula in high school and binomial theorem in high school? Which power can be a non integer,
19. The second power of M + m-2 = 0 to find the value of M + 2000 There are two answers
20. The second power of M + M-1 = 0, M =?