A1.N-RN.B.3

Code Standard Coding: 
A1.N-RN.B.3
Code Standard standard: 

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.

Code Standard Domain: 
The Real Number System (N-RN)
Code Standard Cluster: 
A1.N-RN.B Use properties of rational and irrational numbers.
Code Standard Conceptual Category: 
Number and Quantity - N
Code Standard Course: 
Algebra 1
Is this Mathematics?: 
yes
Is this ELA?: 
no