①43+26=
②26+54=
③63-32=
④83-78=
⑤45+36=
⑥45+28+17=
⑦91-47-15=
⑧45+35-43=
①76+8=
②29+71=
③60+23=
④98-56=
⑤56-7=
⑥100-62=