## Evaluating mathematical expressions

Evaluating mathematical expressions
• Currently 3.0/5 Stars.
5851 views, 1 rating - 00:07:03
Part of video series Evaluating Expressions
Taught by mrbrianmclogan

### Meets NCTM Standards:

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The answer to the second problem is listed as 12, but it should be -12.
How to evaluate mathematical expressions
• How do you evaluate variable expressions?
• If D = 1/2, A = 1.2, B = -6, and C = 5, what does DA - BC equal?
• If D = 1/2, A = 1.2, B = -6, and C = 5, how do you evaluate 2a(4b - 1)/c?
• What does it mean to evaluate an expression?
This lesson shows how to evaluate variable expressions given the value of the variables. Each step is shown for computing the value of the expression. One of the variable values is a fraction, one is a decimal, one is a negative integer, and one is a positive integer in this problem. The siren in the background 2 different times is a little annoying, however.
• Currently 3.0/5 Stars.
Reviewed by MathVids Staff on January 15, 2012.