1 and "1" start from the upper right corner of the daily grid.
2. "2" Touch the line from the left of the pen, and then touch the line up and right to form a semicircle.
3. "3" does not touch the line at the beginning, but touches the line up and then touches the line down, forming a semicircle slightly and bending towards the middle.
4. "4" starts from the middle of the upper line, strokes to the lower grid to the left, touches the left line and then bends to the right to touch the line.
5. "5" starts from less than half of the online.
6. "6" draws an isolated shape from the upper line to the lower right.
7. "7" Draw a horizontal line from the upper left corner to the upper right corner, and then fold it down.
8. "8" forms a semicircle from the upper right line to the left line, and turns to the right below to form a circle to contact the right line. The lower line and the left line intersect the original line upwards, above the middle line.
9. "9" Draw a true line to the middle of the bottom line in the lower left corner near the four-sided touch line in the upper grid.
10 and "10" are ellipses in the upper right corner of the day grid.
There are several kinds of numbers, and Arabic numerals are the most common one. Arabic numerals were not invented by Arabs, but by Indians. In fact, it should be listed as Hindi, but it spread to Arabia first and then to the world, so it is called "Arabic numerals".
Numbers are written symbols used to represent numbers. Different counting systems can use the same number.
Around 500 AD, with the rise and development of economy, culture and Buddhism, Punjab in the northwest of Indian subcontinent has been in a leading position in mathematics, which originated in India. Astronomer Ayepihite made a new breakthrough in simplifying numbers: he recorded the numbers in a grid. If there is a symbol in the first grid,
For example, a point represents 1, then the same point in the second cell represents ten, and the point in the third cell represents one hundred. In this way, not only the digital symbols themselves, but also their position order is of great significance. Indian scholars also introduced the symbol zero.
It can be said that these symbols and representations are the old ancestors of Arabic numerals today.
About 700 years ago, the Arabs conquered Punjab, and they were surprised to find that the mathematics in the conquered area was more advanced than theirs. Later, Arabs introduced this figure to Spain. In 10 century, it was spread to other European countries by Pope Gelber Auriac.