问题 解答题
怎样算简便就怎样算
5.5×17.3+6.7×5.54×3.09×0.259.07-22.78÷3.4.
答案

(1)5.5×17.3+6.7×5.5,

=5.5×(17.3+6.7),

=5.5×24,

=132;

(2)4×3.09×0.25,

=(4×0.25)×3.09,

=1×3.09,

=3.09;

(3)9.07-22.78÷3.4,

=9.07-6.7,

=2.37.

单项选择题
填空题