①49+16=
②88-32=
③70-23=
④162-24+35=
⑤91-(42-17)=
①82+9-53=
②89-34-18=
③90-36+15=
④28+37-16=
⑤12+48+36=
⑥45-19+18=
13+48+29=
82-37-19=
46+54-23=
73-38+16=