Elementary Algebra Review Part 9
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Lesson Summary:
In this Elementary Algebra Review, you'll learn how to simplify numerical expressions using the order of operations and evaluate variable expressions using given values. The lesson covers special cases such as dividing by zero, which results in undefined answers, and multiplying by zero, which always results in an answer of zero. You'll also learn how to plug in values for variables and simplify the expression accordingly.
Lesson Description:
Simplifying numerical expressions using order of operations, evaluating variable expressions using given values
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you simplify numerical expressions using order of operations?
- How do you simplify (-2 - 3 + 5)/(4 - 7) using order of operations?
- How do you simplify (-5)^2/(4 - 4) using order of operations?
- How do you simplify numerical expressions when you are multiplying or dividing by 0?
- How do you simplify (9 - 3^2)/(-6 + 4) using order of operations?
- How do you simplify (14 - 2*7)/(-5 - -5) using order of operations?
- How do you evaluate variable expressions with given values of variables if you are multiplying or dividing by zero?
- How do you evaluate 2x + z when x = 2 and z = -4?
- How do you evaluate 3/(2x + z) when x = 2 and z = -4?
- How do you evaluate (3y + x)/(z + 4) when x = 2, y = -3, and z = -4?
- How do you evaluate (2x + z)/5y when x = 2, y = -3, and z = -4?
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Staff Review
This lesson tackles more problems of simplifying numerical expressions and variable expressions with given values, but now, we are multiplying and dividing by 0.
