3dm³50cm³=dm³=cm³
6×0.7=4.2
6.6×6.7=44.22
6.66×66.7=444.222
6.6666×6666.7=
×= 44444.22222
0.99×0.90.99
4.05÷0.54.05
a×0.5a÷2(a>0)
( )-( )=( )
( )×( )+( )=( )(人)
列式: