46.3*0.56+5.38*5.6-0.056
问题描述:
46.3*0.56+5.38*5.6-0.056
要马上!1
答
46.3*0.56+53.8*0.56-0.56*0.1
=0.56*(46.3+53.8-0.1)
=56
明白了吗?