8.NOS.A: Reason with irrational numbers.

Reason with irrational numbers.

8.NOS.A.1Identify a number as irrational when its decimal expansion neither terminates nor repeats, and explain that irrational numbers cannot be expressed as the ratio of two integers.8.NOS.A.2Use rational approximations of irrational numbers to estimate their locations on a number line, compare their size, and apply this understanding to estimate the value of expressions (e.g., π^2) in context.

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