问题 解答题
简便计算
7×250×4=137+89-37+11=36×250=123-17-83=
答案

(1)7×250×4,

=7×(250×4),

=7×1000,

=7000;

(2)137+89-37+11,

=(137-37)+(89+11),

=100+100,

=200;

(3)36×250,

=9×(4×250),

=9×100,

=900;

(4)123-17-83,

=123-(17+83),

=127-100,

=27.

单项选择题
单项选择题