问题 解答题
计算,能用简便方法计算用简便方法.
17.5÷12.5×1.41.58×99+1.5819.44÷2.7÷4.8.
答案

(1)17.5÷12.5×1.4,

=1.4×1.4,

=1.96;

(2)1.58×99+1.58,

=1.58×(99+1),

=1.58×100,

=158;

(3)19.44÷2.7÷4.8,

=7.2÷4.8,

=1.5.

报关编码
单项选择题