问题 解答题

0.23×102

4×1.76×0.25.

答案

(1)0.23×102

=0.23×(100+2),

=0.23×100+0.23×2,

=23+0.46,

=23.46;

(2)4×1.76×0.25

=4×0.25×1.76,

=1×1.76,

=1.76.

单项选择题
单项选择题