问题 解答题
计算下面各题.(带*的题要用简便方法计算)
150-100÷2522×(23+27)48÷12×2774÷(27+16)*462-179-21*45×16.
答案

(1)150-100÷25,

=150-4,

=146;

(2)22×(23+27),

=22×50,

=1100;

(3)48÷12×2,

=4×2,

=8;

(4)774÷(27+16),

=774÷43,

=18;

(5)462-179-21,

=462-(179+21),

=462-200,

=262.

单项选择题 案例分析题
单项选择题