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# Sets and Symbols

## Whole numbers, integers, rational numbers, and irrational numbers

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Classify Real Numbers (1.1)

by Katie Ziegler //basic
Classify real numbers as rational numbers, whole numbers, integers, and irrational numbers.
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## The Number System

by Susan Sudberry //basic
Classify real numbers as rational numbers, whole numbers, integers, and irrational numbers.
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• Study Guide

## Real Number Line Graphs and Comparisons

by Rayna Schlossberg //basic
Compare real numbers and plot them on number lines.
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## Rational or Irrational?

by Kyle Bardman //basic
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• Flashcards

## Classify Real Numbers

by Tiffany Kwok //basic
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• Flashcards

## Subsets of Real Numbers

by Kyle Bardman //basic
These flashcards will help you to better understand Algebra II with Trigonometry Concepts.
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