问题 解答题

8.6×10.1                   

5.6×(12.5-8.5÷0.85)

[(8.1-5.6)×0.9-1]×0.4            

8.25×4.08+0.75×4.08+4.08

1.84÷[(28.02+11.98)×(62.8-62.3)].

答案

8.6×10.1=86.86;

5.6×(12.5-8.5÷0.85),

=5.6×(12.5-10),

=5.6×2.5,

=14;

[(8.1-5.6)×0.9-1]×0.4,

=(2.5×0.9-1)×0.4,

=1.25×0.4,

=0.5;

8.25×4.08+0.75×4.08+4.08,

=4.08×(8.25+0.75+1),

=4.08×10,

=40.8;

1.84÷[(28.02+11.98)×(62.8-62.3)]

=1.84÷(40×0.5)

=1.84÷20,

=0.092.

解答题
单项选择题 A1型题