Instead of swotting as by now - tiring (am I right?) - on the "small" multiplication table (from one to ten) - it is really indispendable for written multiplication - the rules from zero to one are sufficient:
Naught by naught is naught
Naught by one is naught
One by naught is naught
One by one is one
Done!
or as a leaflet
0
x
0
=
0
Naught
0
x
1
=
0
Naught
1
x
0
=
0
Naught
1
x
1
=
1
One
Don't misunderstand me, please!
I never want to abolish the decimal system to replace it by a dual or any other system -
I only want to show the abilities of a computer -
It's damned meager - if you consider that, but what it can it does like a greased lightning!