на три

by three

→ на
phrase Common #3,213
by three Expresses the amount of a change or difference; the unit or quantity being measured usually follows.
RU: Эта улица длиннее на три километра.
EN: This street is three kilometers longer.

Я поправился на три фунта.

I gained three pounds.

Я его на три сдала, а хотела на пять.

I got a three on it, but I wanted a five.

— Legend No. 17 (2013)

Они размера на три меньше.

They are three sizes smaller.

— Большая прогулка (1966)

На три кило больше, какая разница?

Three kilos more—what difference does it make?

— Джуно (2007)

Том весит примерно на три килограмма больше, чем Мэри.

Tom weighs about three kilograms more than Mary.