36x92-72的简便方法为:将72看成2个36,所以公式为36x92–36x2=36x(92-2)
可以把减数的72转变成36×2
=36×92-36×2
=36×(92-2)
=36×90
=36×(100-10)
=3600-360
=3240
36*92-72=36*92-36*2=36*(92-2)=36*90=3240
36×92-72的简便计算如下:
36×92-72
=36×92-36×2
=36x(92-2)
=36×90
=3240
36x92-72
=36x92-36x2
=36x(92-2)
=36x90
=36x(100-10)
=3600-360
=3240