加か減げん算さん器き

noun

adder-subtracter

A digital circuit or device that performs both addition and subtraction; a technical term in computing and electronics.

• この加か減げん算さん器きは、二に進しん数すうの加か算さんと減げん算ざんを一ひとつの回かい路ろで行おこなう。

  This adder-subtracter performs binary addition and subtraction in a single circuit.