57.6乘以1.6+28.8乘以36.8-14.4乘以80简便计算_其他解答

57.6乘以1.6+28.8乘以36.8-14.4乘以80简便计算

人气：372 ℃　时间：2020-01-30 14:52:22

解答

=(6.4*9)*1.6+(14.4*2)*36.8-14.4*80
=6.4*14.4+14.4*73.6-14.4*80
=14.4*(6.4+73.6-80)=14.4*0=0