France destroyed Russia 79-53 on Saturday to fly into the Qualifying Round as Group C winners.
Shooting guard Isabelle Strunc had a game-high 19 points and connected on four of five attempts from the arc as Jerome Fournier's side maintained their winning form in the tournament.
Ukraine survived a second-half comeback from Russia to claim their first win at the U18 European Championship for Women, 82-61.
Losing by a 54-point margin in their opener to France on Thursday, Yevheniy Filozof's ladies looked a different team and led 42-29 at the break.
Russia broke open a close game early in the third quarter and went on to beat Slovakia 82-57.
Last year's finalists led 37-30 at the break and they went on a 13-0 run after the restart to take command for good.
Slovakia went into the last stanza trailing 56-40 and ultimately crashed to a heavy defeat.