N4 — outside your level filter
high + 〜さ — makes an adjective into a noun naming how much of the property there is
taka sa
〜さ — makes an adjective into a noun naming how much of the property there is
この橋の長さは、およそ二キロあります。
kono hashi no nagasa wa, oyoso ni kiro arimasu.
This bridge is about two kilometres long. neutral
この店は味より値段の安さで選んだんだよね。
kono mise wa aji yori nedan no yasusa de eranda n da yo ne.
I picked this place for how cheap it is rather than for the food. casual