原式=1.7×3.4+1.7×6.6 =1.7×(3.4+6.6) =1.7×10 =17
1.7x3.4+17x0.66简便运算如下:=1.7x3.4+1.7x6.6=1.7x(3.4+6.6)=1.7x10=17
1.7×3.4+17×0.66=17×0.34+17×0.66=17×(0.34+0.66)=17×1=17
=1.7×(3.4+6.6)
=1.7×10
=17