a tricky question to non-native speakers

[sanctuarylsw]

I encountered a sentnece in a Korean exam, which I found strange.

The sentence is,
The more math facts you learn, the easier math facts are to be learned.

I think it should be as follows,
The more math facts you learn, the easier math facts are to learn.

Am I right? or the original one has nothing wrong?
Please, give me an answer!

[Anglika]

The second sentence is fine; the first would only work if it read: The more math facts you learn, the easier math facts are learned.

[Tdol]

Or:
... the easier it is to learn math facts.

[sanctuarylsw]

Thanks a lot for your kind answer to my question.

I always appreciate you all!