Question

简便计算:0.25x0.72x0.4:72x0.99。

Answer 1

0.25*0.72*0.4=0.25*0.4*0.72=0.1*0.72=0.072
72*0.99=72*（1-0.01）=72-0.72=71.28

Answer 2

=0.25×0.4×0.72
=0.1×0.72
=0.072

=72×(1－0.01)
=72－72×0.01
=72－0.72
=71.28