At the place where mathematics and the world of anagrams overlap, many interesting phenomena arise, as regular readers of Word Ways are frequently reminded. Undoubtedly the most famous example is the anagram ELEVEN PLUS TWO = TWELVE PLUS ONE discovered by Melvin Wellman over half a century ago, with equality both mathematically and as an anagram. Two more of these appeared in Word Ways in 1992. They are Spanish examples by Lee Sallows: CATORCE + UNO = ONCE + CUATRO and DOCE + TRES = TRECE + DOS.
"Can All Words Be Expressed As Sumagrams?,"
Word Ways: Vol. 37
, Article 20.
Available at: https://digitalcommons.butler.edu/wordways/vol37/iss2/20