5×0.35=
0.39÷0.001=
2.5×5×4=
1.2x×4=
7.9×100=
0.23=
1.2×4÷1.2=
4.3a-1.2a=
1.25×32=
0.6×0.1=
1.5a+a=
7.5-0.15=
0.56×0.7+0.56×0.7=
0.22=
8.4÷0.21=
1.5÷0.01=
600平方米=公顷 升=升毫升