round sum

9 LETTERS · STARTS WITH R

round sum is a valid 9-letter word worth 11 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1O1U1N1D2S1U1M3

1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 3 =11 PTS

DOUBLE WORD → 22TRIPLE WORD → 33

MEANING

What does round sum mean?