①24+45+16=
②98-73-15=
③28+72-65=
④80-53+33=
①66-43=
②29+48=
③63-(13+18)=
④53-35+23=
①40-13=
②38+55=
③94-46=
④62-40+63=
⑤59+6+29=
⑥53+(32-18)=