Elementary Algebra Review Part 2
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Lesson Summary:
In Elementary Algebra Review Part 2, the focus is on simplifying numerical expressions using the order of operations and evaluating variable expressions by plugging in values. The lesson covers how to change division with fractions to multiplication, how to simplify within parentheses, and the importance of following the order of operations exactly. The transcript also includes examples of how to evaluate expressions with given values for variables and how to simplify the fractions in the final answers.
Lesson Description:
Simplifying more numerical expressions using order of operations and evaluating variable expressions by plugging in values
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you simplify and reduce numerical expressions?
- How do you simplify and reduce (4/5)/2*10 using order of operations?
- How do you simplify and reduce (4/5)/(2*10) using order of operations?
- How do you simplify 2(5^2 - 3) - (8 + 3) using order of operations?
- How do you simplify 2(5^2 - 3) - 8 + 3 using order of operations?
- How do you evaluate variable expressions with given values of variables?
- How do you evaluate 3x^4 when x = 2?
- How do you evaluate 7yz - 8x when x = 2, y = 3, and z = 5?
- How do you evaluate (4xy - z)/(3x + 1) when x = 2, y = 3, and z = 5?
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Staff Review
This lesson shows some more example problems of simplifying numerical expressions using order of operations step by step. Also explained is evaluating variable expressions by plugging values in for each variable.
