1.1: Real Numbers and Algebra Basics — Read

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1.1.1: Use the Language of Algebra
In algebra, we use letters of the alphabet to represent variables. The letters most commonly used for variables are x,y,a,b, and c .
- 1.1.1E: Exercises
1.1.2: Integers
So far, we have only used the counting numbers and the whole numbers. Our work with opposites gives us a way to define the integers. The whole numbers and their opposites are called the integers. The integers are the numbers …−3,−2,−1,0,1,2,3…
- 1.1.2E: Exercises
1.1.3: Visualize Fractions
- 1.1.3E: Exercises
1.1.4: Decimals
Decimals are another way of writing fractions whose denominators are powers of 10.
- 1.1.4E: Exercises
1.1.5: The Real Numbers
- 1.1.5E: Exercises
1.1.6: Properties of Real Numbers
- 1.1.6E: Exercises
1.1.H: Homework

1.1: Real Numbers and Algebra Basics is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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