• #### Adding Vectors - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to plot the sum of two vectors and find its magnitude.

Simplifying fractions that have unsimplified radicals in the numerators.
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• #### Adding and Subtracting Rational Expression - Problem 2

##### Math›Algebra›Rational Expressions and Functions
How to subtract rational expressions with the same denominator.
• #### Adding and Subtracting Rational Expression - Problem 6

##### Math›Algebra›Rational Expressions and Functions
How to find the least common denominator of two monomial terms that include variables
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• #### Adding and Subtracting Rational Expression - Problem 5

##### Math›Algebra›Rational Expressions and Functions
Work application, or total time to finish a job using a rational equation.
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• #### Adding/Subtracting Fractions- Unlike Denominators - Problem 2

##### Math›Pre-Algebra›Fractions and MIxed Numbers
Subtracting fractions with unlike denominators
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• #### Adding and Subtracting Rational Expressions - Problem 9

##### Math›Algebra 2›Rational Expressions and Functions
Distance equals rate times time as boat in current problem.
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• #### Adding and Subtracting Rational Expressions - Problem 8

##### Math›Algebra 2›Rational Expressions and Functions
Identifying the LCM's of polynomials.

• #### Adding and Subtracting Rational Expression - Problem 3

##### Math›Algebra›Rational Expressions and Functions
How to add or subtract rational expressions when they have different denominators.

• #### Adding and Subtracting Rational Expression - Problem 1

##### Math›Algebra›Rational Expressions and Functions
How to add or subtract rational expressions that already have a common denominator.
• #### Adding Vectors - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to plot the sum of two vectors (one the opposite of the other) and find its magnitude.
• #### Adding and Subtracting Rational Expression - Problem 4

##### Math›Algebra›Rational Expressions and Functions
How to add or subtract rational expressions when the common denominator has three factors.
• #### Addition and Subtraction with Decimals - Problem 1

##### Math›Pre-Algebra›Decimals and Percents
Adding decimals by vertically aligning the decimal point and adding zeros to make them the same length
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• #### Applications - Problem 2

##### Math›Pre-Algebra›Integers
Scuba diver example of adding and subtracting integers
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