7.77*6+1.11*58
=1.11*7*6+1.11*58
=1.11*42+1.11*58
=1.11*(42+58)
=1.11*100
=111
望采纳.,.,.,
递等式计算：（第二题要简便计算） 158.6—8.6除以0.43*5.8+4.2 7.77*6+
7.77*6+1.11*58
=1.11*7*6+1.11*58
=1.11*42+1.11*58
=1.11*(42+58)
=1.11*100
=111
望采纳.,.,.,