①35+27=
②53-(4+28)=
③46+24-19=
④72+(25-17)=
①66-8=
②70-23=
③82-47=
④89-36+24=
⑤71-(28+35)=
⑥76-(51-23)=
①92-76+35=
②27+37+16=
③80-24-16=
④92-26-44=