算数

算数	suàn shù	to count numbers / to keep to one's word / to hold (i.e. to remain valid) / to count (i.e. to be important)
算	suàn	to regard as / to figure / to calculate / to compute
数	shǔ	to count / to count as; to regard as / to enumerate; to list
数	shù	number; figure / several; a few
数	shuò	(literary) frequently; repeatedly