1."1"starts from the upper right corner of the daily grid.

Second, "2" touches the left line from the pen, and then touches the line up and right to form a semicircle. 、

Third, the "3" pen does not touch the line, touches the line up, then touches the line down, and slightly bends into a semicircle in the middle.

Fourth, "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 a solitary shape from the upper line to the right.

7. "7" Draw a horizontal line from the upper left corner to the upper right corner, and then fold it down.

Eight, the word "8" forms a semicircle from the upper right straight line to the left straight line, and turns to the circle at the lower right to touch the right straight line, the lower straight line and the left straight line, upward, above the intersection of the center line and the original straight line.

9. "9" Draw a true line to the left near the touch line on the four sides of the upper case at the lower corner to the middle of the bottom line.

X. "1 0" is a1and an ellipse.

Arabic numerals

Arabic numerals (also known as Indian numerals) consist of ten counting symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 * *. Arabic numerals were first invented by ancient Indians, then spread to Europe by Arabs, and then modernized by Europeans. People think it was invented by Arabs, so people call it "Arabic numerals".

brief introduction

Arabic numerals consist of ten counting symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 * *. Take the position value method, the high position is on the left, the low position is on the right, and the writing is from left to right. With the help of some simple mathematical symbols (decimal point, minus sign, percent sign, etc. ), this system can clearly represent all rational numbers. In order to express extremely large or extremely small numbers, people have created scientific notation on the basis of Arabic numerals.

origin

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.