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2. Chisanbop - Wikipedia

   en.wikipedia.org/wiki/Chisanbop

   The Chisanbop system. When a finger is touching the table, it contributes its corresponding number to a total. Chisanbop or chisenbop (from Korean chi (ji) finger + sanpŏp (sanbeop) calculation [1] 지산법/指算法), sometimes called Fingermath, [2] is a finger counting method used to perform basic mathematical operations.

3. Counting - Wikipedia

   en.wikipedia.org/wiki/Counting

   Number blocks, which can be used for counting. Counting is the process of determining the number of elements of a finite set of objects; that is, determining the size of a set. . The traditional way of counting consists of continually increasing a (mental or spoken) counter by a unit for every element of the set, in some order, while marking (or displacing) those elements to avoid visiting the ...

4. Finger-counting - Wikipedia

   en.wikipedia.org/wiki/Finger-counting

   Finger-counting systems in use in many regions of Asia allow for counting to 12 by using a single hand. The thumb acts as a pointer touching the three finger bones of each finger in turn, starting with the outermost bone of the little finger. One hand is used to count numbers up to 12.

5. Counting board - Wikipedia

   en.wikipedia.org/wiki/Counting_board

   By using counters or tokens on a board with designated sections, people could easily keep track of quantities, trade, and financial transactions. [3] This invention not only enhanced accuracy but also fueled the development of more sophisticated mathematical concepts and systems throughout history.

6. Location arithmetic - Wikipedia

   en.wikipedia.org/wiki/Location_arithmetic

   Notice that each row of counters on the grid is just 22 multiplied by some power of two. In fact, the total value of the counters is the sum of two rows 22*8 + 22*1 = 22*(8+1) = 22*9. So the counters on the board actually represent the product of the two numbers, except it is not possible to "read off" the answer just yet.

7. Tally marks - Wikipedia

   en.wikipedia.org/wiki/Tally_marks

   Tally marks on a chalkboard Counting using tally marks at Hanakapiai Beach. The number shown is 82. Tally marks, also called hash marks, are a form of numeral used for counting. They can be thought of as a unary numeral system.