问题 解答题
混合运算.
54×12-60÷354÷3×(120-60)27×63+63×734500-50×23+4
答案

(1)54×12-60÷3,

=648-20,

=628;

(2)54÷3×(120-60),

=54÷3×60,

=18×60,

=1080;

(3)27×63+63×73,

=(27+73)×63,

=100×63,

=6300;

(4)4500-50×23+4,

=4500-1150+4,

=3350+4,

=3354.

单项选择题
单项选择题