Signed numbers

OpenStax

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Variables, constants, and real numbers

1 Section overview

2 Variables and constants

4 Subsets of real numbers

6 Practice set a

7 Ordering real numbers

9 Practice set b

11 Exercises for review

1 Section overview

2 Geometric definition of absolute value

4 Practice set a

5 Algebraic definition of absolute value

7 Practice set b

9 Exercises for review

Addition of signed numbers

1 Section overview

2 Addition of numbers with like signs

4 Practice set a

5 Addition with zero

6 Addition of numbers with unlike signs

8 Practice set b

10 Sample set c

11 Practice set c

13 Exercises for review

Subtraction of signed numbers

1 Section overview

2 Definition of subtraction

3 The process of subtraction

5 Practice set a

8 Practice set b

10 Exercises for review

Multiplication and division of signed numbers

Summary of key concepts

Exercise supplement

Proficiency exam

Source: OpenStax, Fundamentals of mathematics. OpenStax CNX. Aug 18, 2010 Download for free at http://cnx.org/content/col10615/1.4

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