Outstanding female mathematician: Mirzahani Mirzahani (1977-), the top female scholar of the New Philippines Award, was born in Tehran, the capital of Iran. 1994 and 1995 won the international mathematics Olympic gold medal for middle school students for two consecutive years. After graduating from high school, I entered Sharif University of Technology in Tehran. He entered Harvard University from 1999 to study for a doctorate, and studied under 1998 Fields Prize winner mcmullen, who received his doctorate in 2004. From 2004 to 2008, Mi Erzha Hani worked as an assistant professor at the Clay Institute of Mathematics and Princeton University, and became a professor in the Department of Mathematics at Stanford University in 2008. In 2009, he won the Blumenthal Prize awarded by the American Mathematical Society and the 20 13 Sartre Prize in Mathematics. 20 14 In August, she gave an academic report of 1 hour at the 22nd International Congress of Mathematicians held in South Korea, and won the Fields Prize. She was the first female mathematician to win the prize. According to the International Mathematical Union, "Mi Erzha Hani was awarded the Fields Prize for his outstanding research on dynamics and geometry of Riemannian surfaces and their modular spaces".

2. Second grade primary school mathematics handwritten newspaper text book 2

1. An uncle asked how old Smarty was, and he said, "If I subtract my age three years later from my age three years ago, it is equal to my age now." Think about it, children. How old is Smart this year? Answer: His age after three years is 3+3=6 (years) older than that three years ago. His age after three years is three times less than that of three years ago, with a difference of 6×2= 12 (years old), which is equal to the age of PHS now. So the age of "smart" is: (3+3)×2= 12 (years old).

2. Find a six-digit number

Six digits □432 1□ can be divisible by 432 1 to find six digits.

A: The method of "hypothesis-calculation-debugging-verification" is adopted. Suppose these six digits are 9432 19, then 943219 ÷ 4321= 218 …1241,because the remainder is greater than 9, it is irrelevant. Suppose the six digits are 8432 19, then there are 843219 ÷ 4321=195 ... 64, and it doesn't matter if the remainder is greater than 9. Assuming that these six digits are 7432 19, then 74321=172 ... 7, and the remainder is less than 9, we can see that the qualified six digits are 743219-7 = 7442. When the first digits of six digits are 6, 5, 4, 3, 2 and L respectively, the calculation is not satisfactory. To sum up, the required six digits are 7432 12.

3. The second volume of the second grade primary school mathematics handwritten newspaper text

1. Fill in the blanks with 1. () One hundred is a thousand, and ten thousand has a thousand.

2. 1 km = () meters, 1 min = () seconds, 4000 cm = () decimeter.

3, choose the right unit to fill in ();

The height of a child is 150 (), the height of a desk is 7 (), and the class time is 40 (). The length of a railway is 1000 ().

4.3084 consists of () thousands, () tens and () ones.

5. Starting from the right, the third position is () and the fourth position is ().

6. A five-digit number, its digits are () digits, and the hundred digits are () digits.

7. Fill in > or < in ○.

1003○999

3968○400

1900g 02kg

8, 7903, 7930, 9730 and 973 are arranged in order from small to large:

()