23×98+46,用简便方法怎么计算,下面各题。解答:23×98+46=23x98+23x2=23x(98+2)=23x100=2300
23x98+46=23x98+23x2=23x(98+2)=23x100=2300
23*100+46-23*2=2300
=23×98+23×2=23×(98+2)=23×100=2300
=23*98+23*2=23*(98+2)=23*100=2300