1.1.5*2.5=
2.3.7*4.1=
3.2.5*2.5=
4.6.25*1.1=
5.2.4*3.6=
6.7.2*4.8=
7.3.3*2.3=
8.8.4*5.2=
9.2.7*9.5=
10.4.6*7.6=
11.3.44*2.3=
12.6.9*3.5=
13.2.2*1.8=
做吧!