用1,2,3,4,5,6,7,8,9填成式子(不能重复):()()()()×()=()()()()

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用1,2,3,4,5,6,7,8,9填成式子(不能重复):()()()()×()=()()()()
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用1,2,3,4,5,6,7,8,9填成式子(不能重复):()()()()×()=()()()()
用1,2,3,4,5,6,7,8,9填成式子(不能重复):()()()()×()=()()()()

用1,2,3,4,5,6,7,8,9填成式子(不能重复):()()()()×()=()()()()
1963×4=7852
1738×4=6952