arithmetic device 意味

• 演算装置｛えんざん そうち｝
  

• arithmetic:    arithmetic n. 算数; 計算.【動詞＋】◆I challenge your arithmetic. 計算が怪しい◆I can't do arithmetic in my head. 暗算ができない I'll have to do a little mental arithmetic. 暗算を少ししなくてはならない◆I got the arithmetic wrong . 計算を間違
• accurate in arithmetic:    《be ～》計算｛けいさん｝が正確｛せいかく｝である
• arithmetic addition:    加算｛かさん｝