Evaluating mathematical expressions

Evaluating mathematical expressions
  • Currently 3.0/5 Stars.
4558 views, 1 rating - 00:07:03
Part of video series Evaluating Expressions
Taught by mrbrianmclogan
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.
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.
 
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