round down
US /raʊnd daʊn/
UK /raʊnd daʊn/

1.
membulatkan ke bawah
to reduce a number to the nearest whole number or to a lower convenient number
:
•
We need to round down the total to the nearest dollar.
Kita perlu membulatkan ke bawah totalnya ke dolar terdekat.
•
The teacher told us to round down the answer to the nearest tenth.
Guru menyuruh kami membulatkan ke bawah jawaban ke persepuluhan terdekat.