Perfect Score
noun, の adjective
Full points are when you get a perfect score.
まんてん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
満点をとったら、先生に花丸をもらえるの。
When I get a perfect score, my teacher draws a flower on the paper.