The content of the mathematical handwritten newspaper is concise and to the point.

The contents of the mathematical manuscript are as follows:

1, the essence of mathematics is its freedom. -Kanter

2. Mathematics has made an important contribution to observing nature. It explains the simple primitive elements in the regular structure, with which celestial bodies are built. Kepler

3. Mathematical methods permeate and dominate all theoretical branches of natural science. It has increasingly become the main symbol of measuring scientific achievements. Von Newman

Mathematicians are fascinated by nature. Without infatuation, there is no math. -Arabian Peninsula

Xiaoming is a child who likes to ask questions. One day, he became interested in the numbers 0~9: Why are they called "Arabic numerals"? So he went to ask his mother, "Since 0~9 is called" Arabic numerals ",it must have been invented by Arabs, mom?" Mom shook her head and said, "Arabic numerals were actually invented by Indians."

About 1500 years ago, Indians used a special word to represent numbers. There are 10 words, and you can write both strokes. Later, these figures were introduced into Arabia. Arabs think these numbers are simple and practical, so they are widely used in their own countries and spread to Europe.

In this way, it gradually became the number we use today. Because Arabs have played a great role in spreading these numbers, people are used to calling them "Arabic numbers". "Xiao Ming said," so that's it. Mom, can this be called a mistake? " Mom smiled.

6. The arithmetic teacher said that there are 10 pears here ~ six pears have been eaten ~ how many are left? A greedy student replied, "I think we should eat the rest together."

7. Zaizai came back from school happily and asked his mother: Where is dad? Mother saw the excitement of Zaizai and asked strangely, Is Dad at home? What do you want from dad? I asked my father for fifty cents. Why? Mom asked.

Before taking the math exam, my father told me that if I got 100, I would get 1 yuan, and if I got 80, I would get 80 cents. "Today, I got 45 points in the math test," Zaizai replied. Mother asked in surprise: What! You only got 45 points in math? Yes, it takes 4 minutes to give up, but it takes 5 minutes to learn math well. So dad has to pay 50 cents.

8. A well-dressed girl walked into the remittance office of the post office, filled out the money order and handed it to the clerk. When the clerk saw it, he returned the bill and said, "These figures should be capitalized. "The girl cocked his head and said, capitalized? How can you write a big check if it is so small?

9. The Tang Priest and his disciples are walking in the endless desert. They are hungry and tired. Pig Bajie thought: How nice it would be to have a good meal! The Monkey King is not as greedy as Bajie. Wukong just wants to drink a glass of water. The Monkey King wanted to think, the family appeared in front of him. There is only a glass of milk on the table at the door. The Monkey King hurriedly stepped forward, ready to drink.

"Wait a minute, Great Sage," said the host. If you want to drink this glass of milk, you must answer a math problem correctly. " The Monkey King thought, just a math problem can't beat me. The Monkey King agreed. The host's family gave a question: pour a glass of milk, you first drank 1/2 and filled it with water, then drank 1/3 and filled it with water, and finally drank all the drinks. Do you drink more milk and water? Why?

10, concepts of positive numbers and negative numbers: We call numbers like 3, 2, +0.5 and 0.03% positive numbers, which are all numbers greater than 0, while numbers like -3, -2, -0.5 and -0.03% are called negative numbers. They are all numbers less than 0. 0 is neither positive nor negative. We can use positive numbers and negative numbers to represent quantities with opposite meanings.

1 1. Concept and classification of rational numbers: integers and fractions are collectively called rational numbers. There are two main classifications of rational numbers: finite decimals and infinite cyclic decimals can be regarded as fractions.

12, rational number addition rule:

(1) Add two numbers with the same sign, take the same sign, and then add the absolute values.

(2) When two numbers with different signs are added and their absolute values are equal, the sum is 0; When the absolute values are not equal, take the sign of the addend with the larger absolute value and subtract the smaller absolute value from the larger absolute value.

(3) When a number is added to 0, the number is still obtained.

13, rational number addition and subtraction mixed operation: according to the law of rational number subtraction, all addition and subtraction operations can be unified as addition operations, and then parentheses and plus signs are omitted, and the calculation is carried out by addition law and addition operation law.

14. Size relation (addition and subtraction): large number-decimal = difference-difference = decimal+difference = large number.

(1) The number after the word "more" or "less" is the difference.

(2) The numbers on the left and right sides of the word "Bi" are large numbers and decimal numbers respectively.

Find the addition of large series and the subtraction of decimal or difference series.

15, the cube is square, it also has six planes, and its sides are straight. Besides, its sides are all the same length and each face is the same size. No matter how it is laid flat on the table, its height is the same and it can be used to draw a square. The Rubik's Cube is a cube.