竖式计算，得数保留两位小数．
0.38×0.65 6.18×0.99 4.8÷2.3 23.5÷0.18．
列竖式计算，除法保留两位小数．
9.75×1.5 1÷6 13÷2.4 0.59×0.27．
用竖式计算．
3.49+2.15 7.4﹣3.68 5.3×0.26 0.453÷0.15．
直接写出得数．
3.8÷0.19= 0.73×1.25×0.8= 1.6×2.5= 0.15×15﹣5×0.15=
1÷0.2= 1.8×3.6+6.4×1.8= 2.5×0.3= 1.25×3.2×0.25=
计算：
12×2.5= 7.5×0.4= 1÷0.625= 8.4÷4.2=
24÷4+56÷4= 2.5+2.5×3= 0.25×8= 12.5÷2.5=