How to judge whether the score is rational or irrational? Is the Pu'an section hard? Is that a rational number with a score?

An irrational number is an infinite non-circulating decimal
And circular decimals can definitely be converted into fractions
Therefore, the score must be reasonable.
But if you think the root of 2 points is 2 points... I'm speechless
Anyway, that's what it meant.
Then can you understand what I mean?

An irrational number is an infinite non-recurring decimal
A repeating decimal must be a fraction
So it must be a rational number.
But if you think the root 2 is a score... I'm speechless
That's what it means anyway.
Can you see what I mean?

The product of a rational number and an irrational number must be an irrational number

Wrong!
0 Times any number gives 0,0 is a rational number

Wrong!
Multiply 0 by any number to get 0,0 is a rational number

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