At the same time, several mathematical riddles are provided.

1 diameter of road without curve (guess a mathematical term)

Tongue (guess counting unit) thousand.

3 Su Dongpo step Cui (guess is a mathematician) Su

After the diagnosis, the doctor writes (guesses a mathematical operation) and writes a prescription.

5 7÷2 (guess an idiom) No, no, no.

6 Two cows fight against the vertex angle (guess a mathematical concept)

7 Road construction can't be potholed (guess a mathematical term) in parallel.

8 member (guess a mathematical term) center of the circle