216+198简便计算
问题描述:
216+198简便计算
答
216+200-2
=416-2=414
求采纳
答
(200+16)+(200-2)
=200+16+200-2
=400+14
=414
答
216+198
=216+(200-2)
=216+200-2
=416-2
=414
答
216+198
=216+200-2
=416-2
=414