72乘26+36乘48(简算)只写出算式

问题描述:

72乘26+36乘48(简算)
只写出算式

72*26+36*48 =72*(36-10)+36*48

原式=(72/2)*(26*2)+36*48
=36*52+36*48
=36*(52+48)
=36*100
=3600

72*26+36*48
=2*36*26+36*48
=36*(52*48)
=36*100
=3600

72×26+36×48
=36×2×26+36×48
=36×(2×26+48)
=36×(52+48)
=36×100
=3600

72*26+36*48
=36*2*26+36*48
=36*52+36*48
=36*(52+48)
=36*100
=3600

72(26+24)=72*50=3600

3600=36(52+48)