72×26+36×48
=36×2×26+36×2×24
=36×2×(26+24)
=72×50
=3600
72×26+36×48
=36×2×26+36×48
=36×52+36×48
=36×(52+48)
=36×100
=3600
72x26+36x48 =36x2x26+36x48=36x(2x26+48)=36x100=3600
原式=72×26+36×2×24=72×26+72×24=72×(26+24)=72×50=3600
=36*2*26+36*48=36*(52+48)=36*100=3600