MFWA
      +---------
UAEMM | QEUWFURU
       -UAEMM
        =====
        MFRFMU
       -MYJAFF
        ======
         MREJWR
        -MQAMWW
         ======
          FWRYUU
         -FMRRAA
          ======
           MJFMM

base: 10
letters: AEFJMQRUWY
difficulty: easy
restrictions: no multiplication