99×25+50简便计算
问题描述:
99×25+50简便计算
答
99×25+50
=99×25+25x1+25
=25x(99+1)+25
=25x100+25
=2525那98×25+50呢(⊙o⊙)?98×25+50=98×25+25×2=25×(98+2)=25×100=2500