Tool for counting with counting marks (numerical system for counting by addition of units), usually represented by tally bars and grouped by 5.
Tally Marks - dCode
Tag(s) : Communication System, Mathematics, Symbol Substitution
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The unary system based on successive marks consists of recording each addition of n units by n marks (generally lines, bars or sticks). The system uses a single symbol (the system is said to be unary) and allows the count to be updated (for numbers up to a few tens, beyond that, the system is neither practical nor efficient).
The use of tally marks is to group each set of 5 to facilitate counting
Several graphic variants are possible as the square
The unary counting system by marks is often used for a count of days remaining, a calculation of scores, number of points of a match, etc.
Usually marks / lines / sticks are written in lines or in groups. The symbols are generally all the same and simple (bars or dots).