際際滷shows by User: jorind / http://www.slideshare.net/images/logo.gif 際際滷shows by User: jorind / 際際滷Share feed for 際際滷shows by User: jorind https://public.slidesharecdn.com/v2/images/profile-picture.png .......1 x 9 +2 =11 ......12 x 9 +3 =111 .....123 x 9 + 4 =1111 ....1234 x 9 + 5 =11111 ...12345 x 9 + 6 =111111 ..123456 x 9 + 7 =1111111 .1234567 x 9 + 8 =11111111 12345678 x 9 + 9 =111111111 111.111.111x111.111.111=12.345.678.987.654.321