Each of these sums is valid in two ways, once when the words at taken at their face value and again when each letter is interpreted as a particular digit:

THREE 79322 ONE 483 ZERO 4206 TRECE 69858 NINE 6562 FIVE 7293 SEI 827 CINCO 57354 TEN 726 TEN 138 SETTE 82112 OCHO 4504 FOURTEEN 40837226 ELEVEN 363938 OTTO 6116 ---- ---- FIFTEEN 4547226 NINETEEN 82831338 NOVE 9652 QUINCE 127358 ------- ------- FORTYFIVE 745107293 ---- ---- ONCE 4358 FIFTYONE 45471062 --------- --------- TRENTA 102913 NINETYONE 828310483

All are from the *Journal of Recreational Mathematics*, collected by Leonard Gordon in “Doubly-True Alphametics,” *Word Ways* 27:1 [February 1994], 10-12. More alphametics.