I. Tutorial

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. The handwriting should be arranged neatly, and the font should be written obliquely from the upper right to the lower left (numbers are generally inclined 60 degrees from the bottom line).

Every number written should be near the bottom line, but not at the top. Generally, the number in each cell accounts for 1/2 or 2/3, so there should be room for correcting the number. Accounting figures should be written from left to right, and the stroke order is from top to bottom, first left and then right, so as to prevent backward writing.

There should be a space of half an Arabic numeral between adjacent numbers in the same industry, but no space should be left (it is best not to add numbers). Numbers other than "4" and "5" must be written in one stroke, and digital strokes cannot be artificially added. The number "6" is longer than the general number 1/4 to the upper right, and the numbers "7" and "9" are longer than the lower left 1/4 (crossing the bottom line).

For numbers whose stroke order is similar and easy to be confused, try to write according to the standard font, distinguish the stroke order, avoid confusion and prevent alteration.

Second, the history of Arabic numerals

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 numbers in a grid, if there were symbols in the first grid, such as the point representing 1.

Then the same point in the second cell means ten and the point in the third cell means 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.

The influence of Arabic numerals

Impact 1:

The popularity of Arabic numerals makes it easier for people to record, calculate and disseminate information. This provides a foundation for the development of commerce, science, technology and other fields.

Impact 2:

The invention and use of Arabic numerals promoted the development of mathematics and made mathematics a universal science all over the world. In the simplification of mathematics, Arabic numerals are the most important simplification in the history of mathematics development, even crossing the language barrier, making mathematics a universal science all over the world.