解:原式=12*4*56+22*12*8
=12*(224+176)
=12*400
=4800
运用乘法分配律,望采纳!(我要升级,楼主帮我一下,谢谢啊!)
48*56+22*96
=48*56+48*2*22
=48*56+48*44
=48*(56+44)
=48*100
=4800
48*56+22*96
=48×56+44×48
=48×(56+44)
=48×100
=4800
=48*56+(22*2)*48
=48*56+44*48
=48*(56+44)
=48*100
=4800