© Cornelia Ohrt
Rechne mit Symbolen!
= 10 = 20 = 30 = 40 = 50 = 60 = 70 = 80
= 90 = 100 = 0
+ = + = + = - = - = - = + = + = + = - = - = - =
Versuche es nun mit Buchstaben!
A = 10 B = 20 C = 30 D = 40
E = 50 F = 60 G = 70 H = 80
I = 90 J = 100 Z = 0
A + H = C + B = Z + H =
F – C = H – Z = I – H =
F + D = G + A = A + I =
J – E = A – Z = D – B =