问题 解答题
计算下面各题,能简算的要简便计算
3500÷50-28×2125×32
427+(78+273)600-(76+15×20)
4100-163-337+400450÷〔2×(16+9)〕
答案

(1)3500÷50-28×2,

=70-56,

=14;

(2)125×32,

=125×8×4,

=1000×4,

=4000;

(3)427+(78+273),

=427+273+78,

=700+78,

=778;

(4)600-(76+15×20),

=600-(76+300),

=600-300-76,

=300-76,

=224;

(5)4100-163-337+400,

=(4100+400)-(163+337),

=4500-500,

=4000;

(6)450÷[2×(16+9)],

=450÷[2×25],

=450÷50,

=9.

选择题
多项选择题