简便计算:108×69-28

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简便计算:108×69-28
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简便计算:108×69-28
简便计算:108×69-28

简便计算:108×69-28
.108×69-28=108×70-108-28
=7560-110-30+4
=7424

计算器算7424 求采纳

7424

108x70-108-28
7560-136
7424

算的