Question

помогите :с
483+257=
621+199=
356+207=
820-164=
9•9-59=
408-262=
15•8:3=
30•8:2=
60•6:3=

Answer 1

483+257=740
621+199=820
356+207=563
820-164=656
9*9-59=22
408-262=146
15*8:3=40
30*8:2=120
60*6:3=120