addition theorem

16 LETTERS · STARTS WITH A

addition theorem is a valid 16-letter word worth 22 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1D2D2I1T1I1O1N1T1H4E1O1R1E1M3

1 + 2 + 2 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 4 + 1 + 1 + 1 + 1 + 3 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does addition theorem mean?