99999乘99999等于几?
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![99999乘99999等于几?](/uploads/image/z/3755990-38-0.jpg?t=99999%E4%B9%9899999%E7%AD%89%E4%BA%8E%E5%87%A0%3F)
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99999乘99999等于几?
99999乘99999等于几?
99999乘99999等于几?
99999×99999
=(100000-1)(100000-1)
=100000×100000-2×100000+1
=10000000000-200000+1
=9999800001
=(100000-1)*99999
=9999900000-99999
=9999800001