Midcontinent Research for Education and Learning
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Reference
Common Core Mathematics 912
Cluster
Use properties of rational and irrational numbers.
Grade 912
N.RN.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.