简便计算(17/2×9/50)×30/17×125
问题描述:
简便计算(17/2×9/50)×30/17×125
答
(17/2×9/50)×30/17×125
=17/2×30/17×9/50×125
=15×9/2×5
=15×22.5
=337.5