1, Arabic numerals
In our daily life, we often use the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and the data of mathematical tabloids. Do you know who invented these numbers?
These numerical symbols were originally invented by ancient Indians, and later spread to Arabia and Europe. Europeans mistakenly believe that it was invented by Arabs, so it is called Arabic numerals. Because they have been circulating for many years, people still call them Arabic numerals because they are wrong.
Now, Arabic numerals have become the universal digital symbols all over the world.
2. Jiujiu Pavilion
Jiujiuge is the multiplication formula we use now.
As early as the Spring and Autumn Period and the Warring States Period BC, Jiujiu songs have been widely used by people. In many works at that time, there were records about Jiujiu songs. The original Jiujiu Song started from 998 1 to 224,36 sentences. Because it started at 1998, it was named Jiu Jiu Ge. It was between the 5th century A.D. and10th century that Jiujiu Song was expanded into a whole. It was in the 13 and 14 centuries that the order of Jiujiu songs became the same as it is now, from one to another until 998 1 year.
At present, there are two kinds of multiplication formulas used in China, one is 45 sentences, usually called Xiao Jiujiu, and the other is 8 1 sentence, usually called Da Jiujiu.
Mathematics learning method
1, to learn mathematics well, we should grasp three basics: clear basic concepts, familiarity with basic laws and proficiency in basic methods.
After you finish the topic, you must sum it up carefully, so that you won't spend too much time and energy when you encounter similar problems in the future.
3, we must fully understand the mathematical concepts, don't generalize.
4. The ultimate goal of learning concepts is to solve specific problems with concepts. Therefore, we should actively use the mathematical concepts we have learned to analyze and solve related mathematical problems.