68乘72加31乘72加23乘72简便计算

来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/22 15:09:35
68乘72加31乘72加23乘72简便计算68乘72加31乘72加23乘72简便计算68乘72加31乘72加23乘72简便计算68*72+31*72+23*72=(68+31+23)*72=122*7

68乘72加31乘72加23乘72简便计算
68乘72加31乘72加23乘72简便计算

68乘72加31乘72加23乘72简便计算
68*72+31*72+23*72
=(68+31+23)*72
=122*72
=100*72+20*72+2*72
=7200+1440+144
=8784

68×72+31×72+23×72
=﹙68+31+23)×72
=122×72
=8784.

68 23 31=122 72*122=8784