① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩

⑴ ⑵ ⑶ ⑷ ⑸ ⑹ ⑺ ⑻ ⑼ ⑽?

1234567890

( 1) (2) (3) (4) (5) (6) (7) (8) (9) ( 10)

⒈ ⒉ ⒊ ⒋ ⒌ ⒍ ⒎ ⒏ ⒐ ⒑?

Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ Ⅶ Ⅷ Ⅸ Ⅹ?

In addition to counting, extended data mathematics needs a set of mathematical symbols to express the relationship between numbers and shapes. The invention and use of mathematical symbols are later than numbers, but they are much more numerous. Now there are more than 200 kinds in common use, and there are more than 20 kinds in junior high school math books.

Counting symbols on wood, bones or stones have been used since prehistoric times. Stone age cultures, including ancient Indians, used counting symbols in gambling, private services and transactions.

Symbol is an established social communication tool, and its representative is language. Under normal circumstances, both teachers and students use certain symbols on the premise of agreement, which is conscious and unconscious. On the premise of recognition, we should make use of the selective attention, understanding and acceptance of the audience.

In the sense of semiotics, human communication behavior refers to the process of behavior coordination in which people use symbols to express their feelings, exchange information between people and enjoy information.

References:

Baidu encyclopedia-digital symbols