12.4÷5=
6.56÷3.2=
★64.8÷0.8=
0.25×12=
0.9²=
0.45÷0.9=
0÷0.26=
0×28÷28=
6.6-0.6×10=
3.84×99+3.84=
37.6÷1.25÷8=
3.7×1.83.7 4.2÷1.54.2 6.21÷0.016.21×100
( )
( )
方程:
213+199= 52-0.8= 12.5××0.08= 101×45=