问题 解答题
混合运算.
81×7÷9672÷(3×2)576÷4÷3399÷7+293.
答案

(1)81×7÷9,

=567÷9,

=63;

(2)672÷(3×2),

=672÷6,

=112;

(3)576÷4÷3,

=144÷3,

=48;

(4)399÷7+293,

=57+293,

=350.

不定项选择
单项选择题