2. "8" is like a doll. From the upper right line to the left line, a semicircle is formed, and then it turns to the lower right line to form a circle, which touches the right line, the lower line and the left line, intersects the original line upward, above the middle line, and finally, the line reaches a place near the upper right corner and slightly away from the pen. Not sealed.
Extended data:
I. The origin of Arabic numerals:
Around 500 A.D., with the rise and development of economy and caste system, Punjab in the northwest of Indian subcontinent has been in a leading position in mathematics.
Astronomer Ayepihite made a new breakthrough in simplifying numbers: he recorded the numbers with a grid. If there is a symbol in the first grid, such as a point representing 1, then the same point in the second grid represents ten, and the point in the third grid represents one hundred.
In this way, not only the digital symbols themselves, but also their position order is of great significance. Later, Indian scholars introduced the symbol zero. It can be said that these symbols and representations are the old ancestors of Arabic numerals.
Second, the standardized writing of Arabic numerals:
1, each number should be symmetrical in size and smooth in strokes; Every number is independent, tangible and obvious, so it can't be written in Lian Bi. ?
2. The writing arrangement is orderly, and the font should be written obliquely from the upper right direction to the lower left (the number and the bottom line are generally inclined at 60 degrees). ?
Baidu Encyclopedia-Arabic numerals