Arthur Fuller
fuller.artful at gmail.com
Mon Sep 19 03:55:53 CDT 2011
Can they multiply yet? There are some cool things about multiplication. I like the elevens especially. 11*11=121. 11*11*11=12121, and so on. The nines are cool, too: take the digits in any multiple of nine and they add up to 9: 18, 27. 36. 45, etc. Arthur