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Real Numbers

★★☆☆☆Middle School

📖Definition

The set of all rational and irrational numbers, corresponding to every point on the number line.

ℝ = ℚ ∪ \mathbbI

Real numbers = Rational ∪ Irrational

ℕ ⊂ ℤ ⊂ ℚ ⊂ ℝ

Number system hierarchy

예제 1★☆☆☆☆

Describe the position of √2 on the number line.

예제 2★★☆☆☆

Classify the following numbers: -3, 0.5, √3, π, 7

Continuous physical measurements

Precise calculations and measurements

#number#fundamental#real#intermediate