mathematical operation

NOUN
22 LETTERS · STARTS WITH M

mathematical operation is a valid 22-letter word worth 32 points in Scrabble and 37 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3A1T1H4E1M3A1T1I1C3A1L1O1P3E1R1A1T1I1O1N1
3 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =32 PTS
DOUBLE WORD → 64TRIPLE WORD → 96
MEANING

What does mathematical operation mean?