Rumus Perkalian Dengan 11

0

001 x 11 = 0011 =0001 1

011 x 11 = 0121 =001 2 1

121 x 11 = 1331 = 1 3 3 1

Rumus :

00a x 11 = a|a = aa

0ab x 11 = a|a + b|b

abc x 11 = a|a + b|b + c|c