9/10*34.6+111*1.8+54.3/(除以)10/9 简便计算
问题描述：
9/10*34.6+111*1.8+54.3/(除以)10/9 简便计算
答
9/10×34.6+111×1.8+54.3÷10/9
=0.9×34.6+111×2×0.9+54.3×0.9
=0.9×(34.6+222+54.3)
=(1-0.1)×310.9
=1×310.9-0.1×310.9
=310.9-31.09
=279.81