Step-by-step solutions to odd-numbered problems from dozens of algebra textbooks.
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Hotmath
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
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Paul's Online Math Notes
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This page describes the sets of numbers, natural, whole, integers, rational, irrational and real numbers. Gives examples and organizes the information well.
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Virtual Math Lab by Texas A&M University
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Multiple Choice practice with properties of Algebra with an explanation.
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math.com
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Explains what Natural Numbers, Whole Numbers, Integers, Rational Numbers, Irrational Numbers, and Real Numbers are.
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Understanding Algebra
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Practice Quiz on Real Numbers, their properties, and their operations
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Algebra Lab
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write the percent equivalent
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Tutor.com
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-2 1/4 + -1 1/3 and I get -9/4 + -4/3 am I right so far
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Tutor.com
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