EYXY
     +---------
YXEQ | MMEXJXYY
      -MRUQE
       =====
        XUMPX
       -XGGPG
        =====
          EQEY
         -YXEQ
          ====
          XUQEY
         -XGGPG
          =====
           XPXJ

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