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.