问题 解答题
脱式计算
8388÷9-668÷4
816÷3-127×2
172×(46-38)(269+284)÷7.
答案

(1)8388÷9-668÷4,

=932-167,

=765;

(2)816÷3-127×2,

=272-254,

=18;

(3)172×(46-38),

=172×8,

=1376;

(4)(269+284)÷7,

=553÷7,

=79.

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