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STANDARDS

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US-NC

Math

North Carolina Math

Grade 8: The Number System

Know that there are numbers that are not rational, and approximate them by rational numbers.

NC.8.NS.1

Fully covered
Understand that every number has a decimal expansion. Building upon the definition of a rational number, know that an irrational number is defined as a non-repeating, non-terminating decimal.

NC.8.NS.2

Use rational approximations of irrational numbers to compare the size of irrational numbers and locate them approximately on a number line. Estimate the value of expressions involving:

NC.8.NS.2.a

Fully covered
Square roots and cube roots to the tenths.

NC.8.NS.2.b

Not covered
𝜋 to the hundredths.
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