①6x=1.5
②5x+0.5x=33
③0.8(x+3)=9.6
3.5×0.2=
10÷0.5=
0.63÷0.9=
0.99÷0.1=
3.9×0.01=
1.25×0.8=
0.1-0.02=
0.2+0.78=
0.99×1.25×8=
3.8×8.2+3.8×1.8=
3.4×2.8 9.7÷2.5 *15÷2.4