Tom Russell wrote: > Martin Phipps wrote: > > Tom Russell wrote: > > > > > Quick! What's A + B? > > > > A = 9 + 1 > > B = 9 + 2 > > > > so A + B = 10 + 5 = 15 > > > Wouldn't that be 10 + 11 = 15? No. 10 + 11 = 9 + 7 + 9 + 8 = 21 :) Martin