An irrational number is a number that cannot be expressed as a fraction.

The order of this graph is 5.

I like solving sudoku puzzles every day.

The Reynolds number is an important concept in fluid dynamics.

Quantum number is an important concept in physics.

His house is very big.

This game is considered a zero-sum game.

The balance of his bank account is zero.

His answer was confirmed to be correct.

She is a famous numerologist, and many people seek her advice.