也不知道是几年级的,晕,我就找几道给你,你看能不能用25x7x4=25x4x37=100x37=3700(125x12)x8=(125x8)x12=1000x12=1200044x25=40x25+4x25=1000+100=110027x45+27x55=27x(45+55)=27x100=270013x102=13x100+13x2=1300+26...
也不知道是几年级的,晕,我就找几道给你,你看能不能用25x7x4=25x4x37=100x37=3700(125x12)x8=(125x8)x12=1000x12=1200044x25=40x25+4x25=1000+100=110027x45+27x55=27x(45+55)=27x100=270013x102=13x100+13x2=1300+26...