# Cauldron of Numbers MathPots

### 0.999….is equal to 1 or not?

0.9999…=1? This question shows up every year. It's a 0.9999…=1 anniversary, right? Today MathPots also want to try to cook this stuff to everyone.

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### Three Doors Problem-Monty Hall Problem in the Movie 21

“Suppose you are in a game show, and you are given a chance to choose three different door. Now behind one of the doors is a new car, and behind the other two are goats. Which door would you choose?”
In the movie 21, Professor Mickey asked a question in his class. The play of the talk between Mickey and Ben impressed a lot of people. In fact, the question in the movie is a classic question – Monty Hall problem! Let’s take a look!

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### 0.999….is equal to 1 or not?

0.9999…=1? This question shows up every year. It's a 0.9999…=1 anniversary, right? Today MathPots also want to try to cook this stuff to everyone.

Savor »

### Three Doors Problem-Monty Hall Problem in the Movie 21

“Suppose you are in a game show, and you are given a chance to choose three different door. Now behind one of the doors is a new car, and behind the other two are goats. Which door would you choose?”
In the movie 21, Professor Mickey asked a question in his class. The play of the talk between Mickey and Ben impressed a lot of people. In fact, the question in the movie is a classic question – Monty Hall problem! Let’s take a look!

Savor »

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