1 / 8

Learning Target

Learning Target. TSW evaluate simple algebraic expressions. Variable. A symbol that represents an unknown quantity. Most of the time, a letter will be used. Example: n +2 In this case, “n” is the variable. Algebra. The branch of mathematics that involves expressions with variables.

teige
Télécharger la présentation

Learning Target

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Learning Target TSW evaluate simple algebraic expressions.

  2. Variable A symbol that represents an unknown quantity. Most of the time, a letter will be used. Example: n+2 In this case, “n” is the variable.

  3. Algebra The branch of mathematics that involves expressions with variables.

  4. Algebraic Expressions Contain numbers, variables, and at least one operation. Examples: 12 + c m - 8

  5. Evaluating Algebraic Expressions Evaluate n+3 if n=4. The expression is n+3. To evaluate, you replace n with 4. n+3 becomes 4+3. n+3 when n=4 equals 7 when the expression is evaluated.

  6. Algebraic Expressions Involving Multiplication In algebra, the multiplication symbol is often omitted. You will see things like the following examples: 6d means 6 times d 8st means 8 times s times t mn means m times n The numerical factor of a multiplication expression that contains a variable is called a coefficient. In the previous example, “6” is the coefficient in the expression “6d”.

  7. Important Information In most algebraic expressions, the fraction bar is used as a grouping symbol. You should evaluate expressions in the numerator and denominator separately before dividing.

  8. Defining a Variable When translating a verbal phrase (word problem) into an algebraic expression: Describe the situation using only the most important words. Choose a variable that represents the unknown quantity. Write an algebraic expression that represents the verbal description.

More Related