0.19÷0.090.18×0.09;
0.7×0.70.7+0.7;
3.07×0.6050.307×6.05;
4.35×100.8×43.5.
4×0.025=
0.16×0.5=
1.1﹣0.96=
8÷1.5=
0.72÷1.2=
0.7+6.77=
18÷3.6=
1.2×0.5=
①89.3×43+38×89.3+19×89.3
②1.25×32×2.5
③4.68÷4.5×(0.25+0.5)
④20.08+(32﹣0.299÷0.23)