默算 mòsuàn to do mental arithmetic Origin Definitions Defs Strokes Stroke Words Sentences Sents mòsuàn to do mental arithmetic 默 mò secretly (bound form) secretly; inwardly; in one's mind算 suàn noun to calculate to calculate; to compute; to figure out or count numbersmòsuàn to plan 默 mò secretly (bound form) secretly; inwardly; in one's mind算 suàn verb to plan to plan; to calculate; to scheme