= = =
3.6÷0.18=
27×3.01÷27=
2.8-2.8÷7=
4.2÷6=
0.25×40=
0.14×0.3=
4.25×9.9+4.25×0.1=
0.2-0.2×0.2=
4(x+3.9)=25.2
0.8x-7.8=1.4
3.2÷0.8+0.3x=25
4.8×3.5= 0.168÷=0.35
小红:我已经写了9个大字,还要写5个。