249+360=
251+369=
525-412=
478-209=
955-775=
736-675=
127+234=
985-807=
461＋433=
489-233=
136+471=
833-732.=
294+164=
345+427=
961-600=
263-163=
622+190=
718-608=
985-456=
437+270=
188-14=
435+270=
683+181=
166+262=
550+118=
903-786=
419+489=
734-273=
81+519=
811-796=