32+51+67= 43+55-29= 80-15+6=
34-4+27= 17+48-26= 89-27-42=
①49+16=
②88-32=
③70-23=
④162-24+35=
⑤91-(42-17)=
①77÷8=
②50÷6=
③48÷9=