问题 解答题
脱式计算,能简算的要简算.
1.08×0.8÷0.272.6×1.7+1.4×1.70.4×63×2.5.
答案

(1)1.08×0.8÷0.27

=1.08÷0.27×0.8,

=4×0.8,

=3.2;

(2)2.6×1.7+1.4×1.7

=(2.6+1.4)×1.7,

=4×1.7,

=6.8;

(3)0.4×63×2.5

=0.4×2.5×63,

=1×63,

=63.

单项选择题
单项选择题