1 2 3 4 5 6 7 8 9 that's it!
Hindu
The U.S. counting system primarily refers to the decimal system, also known as the base-10 system, which uses ten digits (0-9) to represent numbers. In addition, the U.S. employs various specific counting systems for different applications, such as the Imperial system for measurements and the Federal Reserve system for counting currency. The term "counting system" can also imply methods used in statistical analysis or data representation, depending on the context.
no comment ;;;;
Counting
meteric system
the Mayan number system is called the Hieroglyphics, they thought that zero counted as a number, so they put that zero into the counting system... i hope this answer helps
Babylonians
Roman numerals
The Mayans
Decimal.
There really isn't just one formula for card counting. I wouldn't even say its a formula, its more of a system. If you want a basic system for card counting i would Google "hi/low card counting system". That's probly the easiest one to start off with. Good luck man
Ethiopian pebble counting is much like using multiplication.