75*1.8+2.5*18=?按规律计算
问题描述:
75*1.8+2.5*18=?按规律计算
答
75*1.8+2.5*18 =7.5*18+2.5*18 =(7.5+2.5)*18 =10*18 =180
75*1.8+2.5*18=?按规律计算
75*1.8+2.5*18 =7.5*18+2.5*18 =(7.5+2.5)*18 =10*18 =180