问题 解答题
脱式计算,能简算的要简算.
0.7×101-0.70.125×4.7×812.5-1.68-2.32567÷20÷5.
答案

(1)0.7×101-0.7,

=0.7×(101-1),

=0.7×100,

=70;

(2)0.125×4.7×8,

=(0.125×8)×4.7,

=1×4.7,

=4.7;

(3)12.5-1.68-2.32,

=12.5-(1.68+2.32),

=12.5-4,

=8.5;

(4)567÷20÷5,

=567÷(20×5),

=567÷100,

=5.67.

实验题
单项选择题