Put the 10 numbers 0,1,2,3,4,5,6,7,8,9 in () (each number can only be used once) () + () = () - () = () * () = () ()

Put the 10 numbers 0,1,2,3,4,5,6,7,8,9 in () (each number can only be used once) () + () = () - () = () * () = () ()


6+3=9
8-7=1
4*5=20



The wise man put out ten numbers of 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0 for ten people to pick up, and only one person could pick up. People rushed up and took away 9, 8, 7, 6, 5, 4 and 3. Those who got 2 and 1 said they were not lucky, but one person was willing to take 0, and others called him "fool" Add to the story!


He said: "the same card, why so sad, get 9 is not lucky, and get 0 is not a sad thing." the wise man came out from the person who got 9 began to ask: "are you very happy (very sad)," the result did not make the wise man happy, because he did not say happy. Ask the last person



If you put 0,1,2,3,4,5,6,7,8,9, ten numbers in (), each number can only be used once
()—()=()—()=()—()=()—()=()—()


(9)-(4)=(8)-(3)=(7)-(2)=(6)-(1)=(5)-(0)



The numbers 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 cannot be filled in repeatedly
() + () = () + () = () + () = () + () - () + () please fill in!


First, add them all together
That's 45
And all the equations add up to a multiple of four
in other words
45 minus two times a number becomes a multiple of four
Of course, it's impossible
So in fact, there is no solution to this problem