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In the News
Number and Quantity
The Real Number System
Use properties of rational and irrational numbers.
N-RN.B. Use properties of rational and irrational numbers.
Calculating the square root of 2
Coordinates of equilateral triangles
Rational or Irrational?
N-RN.B.3. Explain why the sum or product of two rational numbers is rational; that the sum of a rational number and an irrational number is irrational; and that the product of a nonzero rational number and an irrational number is irrational.
Operations with Rational and Irrational Numbers
Sums of rational and irrational numbers