This problem is very easy.
ごく普通の一日だった。
It was a very ordinary day.
10^48; quindecillion
Only when written 極
A numeric unit meaning 10^48 (quindecillion in the short scale). Rarely used outside mathematical or historical contexts.
極は10の48乗を表す単位だ。
極 is a unit representing 10 to the 48th power.
This is a story about someone raised in a perfectly ordinary family.
Only a small handful of people know that fact.
The chance of success is nothing more than an extremely small figure.
He started speaking Japanese quite naturally.
very; extremely; most · supreme; utmost; best
innermost secrets; essence; heart
wicked; evil; immoral · wastrel; scoundrel; villain · organized crime; yakuza; underworld
extreme cold; intense cold; midwinter
very thick; extremely thick · thick, heavy thread
happy-go-lucky person; carefree optimist
superfine; extra-fine; extremely thin · extra-fine woollen yarn
extreme poverty; destitution
richly colored; vividly colored; gaudy
extremely; highly; very
strikingly similar; bearing a strong resemblance
highly confidential; top secret
hallmark; stamp; impress · brand; stigma; reputation
great flavor; excellent taste
absolute secrecy; top secret
intense heat; peak of summer's heat
December; last month of the year
extremely hot (especially sake)
extreme heat; intense heat