314/100-3.14*4/5+3/100*3.14简便计算

问题描述:

314/100-3.14*4/5+3/100*3.14简便计算

=3.14*(1-4/5+0.03)
=3.14*(0.2+0.03)
=0.628+0.0942
=0.7222

=3.14-3.14*4/5+0.03*3.14
=3.14*(1-4/5+0.03)
=3.14*0.23
=0.7222

  314/100-3.14*4/5+3/100*3.14
 =3.14(100/100-4/5+3/100)
  =3.14x0.23
  =0.7222