mental arithmetic

1 definition found

mental arithmetic - Collaborative International Dictionary of English v.0.48 :

  Mental \Men"tal\, a. [F., fr. L. mentalis, fr. mens, mentis, the
     mind; akin to E. mind. See Mind.]
     Of or pertaining to the mind; intellectual; as, mental
     faculties; mental operations, conditions, or exercise.
     [1913 Webster]
  
           What a mental power
           This eye shoots forth!                   --Shak.
     [1913 Webster]
  
     Mental alienation, insanity.
  
     Mental arithmetic, the art or practice of solving
        arithmetical problems by mental processes, unassisted by
        written figures.
        [1913 Webster]