×

Loading...

111111111×111111111=111111111×(100000000+10000000+⋯+100+10+1)=11111111100000000+1111111110000000+⋯+11111111100+1111111110+111111111

onyou (悟)
(#11432097@0)
2018-3-20 -05:00
Reply
Share Online by QR Code
Page address has been copied.
To share, click to copy page address.

Back To Topic: 一道奥数题,数学好的同学能不能来解释一下,为什么111111111 x 111111111 = 12345678987654321?这里存在一个什么样的逻辑思路?

Back To Forum: HOME枫下论坛枫下论坛主坛工作学习学科技术