5元6角2分+3元零9分
( )+( )=( )元
10kg-4kg800g
( )-( )=( )kg
2t30kg+970kg
( )+( )=( )t
7km-2km860m
( )-( )=( )km
□×□=□
□÷□=□
6+8=
8+6=
14-6=
14-8=
5+70=
70+5=
75-5=
75-70=