9.56×4.18-77.3×4.18-0.26×4.18简便算式
问题描述：
9.56×4.18-77.3×4.18-0.26×4.18简便算式
答
9.56×4.18-77.3×4.18-0.26×4.18
=(9.56-0.26-77.3)×4.18
=-68×4.18
=-(70-2)×4.18
=-70×4.18+2×4.18
=-292.6+8.36
=-284.24你咋把－变＋le= =