
2个回答
展开全部
原式=19.98x37+19.98x10x1.9+19.98x100x0.44
=19.98x(37+10x1.9+100x0.44)
=19.98x(37+19+44)
=19.98x(56+44)
=19.98x100
=1998
=19.98x(37+10x1.9+100x0.44)
=19.98x(37+19+44)
=19.98x(56+44)
=19.98x100
=1998
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询