Why is 1 a unit of natural number

Think that any natural number is a multiple of 1, such as 3 △ 1 = 1, 0 △ 1 = 1

RELATED INFORMATIONS

1. The least common multiple of 1 and any non-zero natural number is the natural number ()
2. When the decimal point of a number is moved one place to the right, the number increases by 9 times______ ．
3. How many times 1.05 is equal to an integer, need a decimal point; thank you
4. Remove the decimal point of a two place decimal, and the two place decimal will be increased by 100 times
5. After removing a two digit decimal point, it is increased by 34.65. What are the two decimal places?
6. One decimal place, after removing the decimal point, increases by 20.7 points compared with the original number. The original number is ()
7. What is the key point of vertical calculation of decimal multiplied by integer?
8. What is the key to the vertical calculation of decimal multiplied by integer
9. How to calculate the vertical form of [decimal multiplied by integer]?
10. How to multiply two decimal places by integer
11. Is 0 the smallest natural number?
12. Is 0 the smallest natural number
13. The smallest natural number is______ The number of natural numbers is______ Yes
14. What is the smallest number of natural numbers? What is the number of natural numbers? What is the smallest one digit? One end of the ray can be (infinitely extended), and the length of the ray () is longer
15. The minimum natural number is 0, and the number of natural numbers is infinite______ ．
16. The minimum natural number is 0, there is no natural number of (), the number of natural numbers is () Our teacher mentioned it! I'll send you Office2010 if you get it right
17. The smallest natural number is______ There is no maximum natural number. The number of natural numbers is______ Yes
18. What is the minimum natural number and the number of natural numbers
19. The basic unit of natural number is______ 903 was created by______ It consists of one
20. 1 and 0 are the basic units of natural numbers