Extended data:

There are many riddles about mathematics.

1, the diameter of the road without bending (guess a mathematical term)

2, tongue (guess a counting unit) thousand

3. Su Dongpo stepped on Su of Cui (a mathematician, I guess).

After the diagnosis, the doctor makes a prescription (guess a mathematical operation).

5,7 ÷ 2 (guess an idiom) No three no four.

6. Two cows fight at the top corner (guess a mathematical concept)

7, road construction can't potholes (guess a mathematical term) in parallel.

8. Member (guess a math term) center

9. Put out the fire (guess China) a.

10, Spring Rain Sprinkles Hometown (Guess Mathematician) Chen Jingrun

1 1, Grandpa took part in the 100-meter race (guess a mathematician) Zu Chongzhi.

12, the index of the math teacher's pointer (with a math noun typed)

13, 7/8 (guess an idiom) rises and falls.

14, 1, 2, 5, 6, 7 ... (guess an idiom)

15 and 24680 (guess an idiom) are coincidences.

16, 1% (guess an idiom) One in a million.