34.5*76.5-345*6.42-123*1.45
=34.5*76.5-34.5*64.2-123*1.45
=34.5*(76.5-64.2)-12.3*14.5
=34.5*12.3-12.3*14.5
=12.3*(34.5-14.5)
=12.3*20
=246
34.5*76.5-345*6.42-123*1.45的简算
34.5*76.5-345*6.42-123*1.45的简算
其他人气:618 ℃时间:2019-12-05 07:11:45
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