1()2()3()4()5()6()7()8()9=10.在括号里填上加号或减号使等式成立.

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1()2()3()4()5()6()7()8()9=10.在括号里填上加号或减号使等式成立.
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1()2()3()4()5()6()7()8()9=10.在括号里填上加号或减号使等式成立.
1()2()3()4()5()6()7()8()9=10.在括号里填上加号或减号使等式成立.

1()2()3()4()5()6()7()8()9=10.在括号里填上加号或减号使等式成立.
1、+2+3-4+5-6+7-8-9
2、-2-3-4-5-6-7+8+9
3、+2-3+4+5+6-7-8-9
4、-2+3-4+5-6-7-8+9
5、-2-3+4-5+6+7-8-9
6、+2-3-4-5-6+7+8-9

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