( )()9乘()()()等于8()8()6

问题描述:

( )()9乘()()()等于8()8()6
()() 5
乘()() 2
————————
6()()
()()()()
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2 0 () 6 7 0

(3)(3) 5
乘(6)(0)2
————————
6(7)(0)
(2)(0)(1)(0)
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2 0(1)6 70