163×81/82的简便计算

日期:2022-03-28 03:12:45 人气:1

163×81/82的简便计算

解: 163×81/82

=(164-1)*81/82

=164*81/82-81/82

=162-81/82

=161+(1-81/82)

=16又1/82

    A+
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