Question

192x300300-300x192192=? 简便计算

192x300300-300x192192=? 简便计算
要求用2种方法,第2位用户回答请不要跟第1位相同
要求递等式计算

Answer 1

192×300300－300×192192
＝192×300×1001－300×192×1001
＝0
现在我只有一种，等想出来第二种再告诉你

Answer 2

192x300300-300x192192
=192x300x(1001)-300x192x(1001)
=0
注300300=300x1000+300=300x1001

法二
192x300300-300x192192
=192x300x(1001)-300x192192
=300x192x(1001)-300x192192
=300x192192-300x192192

=0

Answer 3

192x300300-300x192192
=192*(300000+300)-300*(192000+192)
=192*300000+192*300-300*192000-300*192
=(192000*300-300*192000)+(192*300-300*192)
=0+0
=0

Answer 4

算法一
192x300300-300x192192
=192x300x(1001)-300x192x(1001)
=0
注：300300=300x1000+300=300x1001
算法二
192x300300-300x192192
=192x300x(1001)-300x192192
=300x192x(1001)-300x192192
=300x192192-300x192192
=0

Answer 5

=192x300x1000+192x300-300x192x1000-300x192
=192x300x1000-300x192x1000
=0