The sum, difference and quotient of a natural number and its own addition, subtraction and division are equal to 21______ ．

A: the natural number is 10. So the answer is: 10

RELATED INFORMATIONS

1. When a natural number is added, subtracted, multiplied and divided with itself, the sum of sum, difference, product and quotient is 25. What is the number?
2. The difference, sum and quotient of a natural number and its subtraction, addition and division add up to 101. The natural number is () Formula truth Given the coprime of α and 12, their greatest common divisor is (the least common multiple is)（
3. Three natural numbers add or multiply to get the same result. What are the three numbers? thinking
4. There are three natural numbers. If you add them or multiply them, the result will be the same. What are the three numbers?
5. There are three natural numbers. They add and multiply to get the same result
6. A fraction plus a fraction equals one (a different number)
7. One twelfth is equal to a fraction plus a fraction plus a fraction plus a fraction (different numbers)
8. What's one plus eight out of nine
9. What's one in four plus two in eight?
10. How much is 1 in 8 plus 6 in 7 plus 7 in 8?
11. The difference, sum, quotient and product of a natural number and its subtraction, addition, division and multiplication add up to exactly 8. The natural number is ()
12. If the sum of n natural numbers greater than or equal to 1 is x and the product of multiplication is y, what is the law or relationship between X and y Or, given the number of XY, x + y and natural number n, can we find X and y
13. What is zero plus one minus two times three divided by four I'll add points
14. One plus one plus one multiplied by one minus one divided by one plus zero. What's three six plus zero, six eight times six minus two
15. How much is ten thousand plus one million plus eight million plus eighty thousand?
16. How many times two plus one equals zero?
17. What is the sum of (- 10 to the third power) plus (- 4 to the second power - (1-3 to the second power multiplied by 2)?
18. How much is 2 times 1 in 3 plus 3 times 1 in 4 to 9 times 1 in 10
19. How much is (2 / 3 + 1 / 4) multiplied by 12 Train of thought, be specific
20. How many times 4 / 3 is 12