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STANDARDS

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US-AL

Math

Alabama Math

Grade 8: Number Systems and Operations

Understand that the real number system is composed of rational and irrational numbers.

8.1

Define the real number system as composed of rational and irrational numbers.

8.1.a

Mostly covered
Explain that every number has a decimal expansion; for rational numbers, the decimal expansion repeats or terminates.

8.1.b

Not covered
Convert a decimal expansion that repeats into a rational number.
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8.2

Fully covered
Locate rational approximations of irrational numbers on a number line, compare their sizes, and estimate the values of the irrational numbers.