280乘36加360乘72等于?(简便计算)

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280乘36加360乘72等于?(简便计算)

280乘36加360乘72等于?(简便计算)
280乘36加360乘72等于?(简便计算)

280乘36加360乘72等于?(简便计算)
=28*10*36+360*72
=28*360+360*72
=360*(28+72)
=360*100
=36000

280*36+360*72
=280*36+36*720
=36*(280+720)
=36*1000
=36000

10080+25920=36000

36*(280+10*72)
=36*(280+720)
=36*1000
=36000

=280*36+360*2*36=36*(280+720)=36000

280*36+360*72
=280*36+36*720
=36*(280+720)
=36*1000
=36000

280*36+360*72
=280*36+36*720
=36*(280+720)
=36*1000
=36000
或者
=28*10*36+360*72
=28*360+360*72
=360*(28+72)
=36000

280×36+360×72
=28×360+360×72
=(28+72)×360
=100×360
=36000

=28*10*36+360*72
=28*360+360*72
=360*(28+72)
=360*100
=36000