VARIABLES, EXPRESSIONS, AND FUNCTIONS
A mathematical expression is a combination of numbers, letters, and symbols. The letters are called variables and represent a numeric quantity. The symbols represent operations such as add, subtract, multiply, and divide. When evaluating expressions we substitute numbers for the variables.
In a function, the output is related to the input through a function rule and for each input value there is exactly one output value. When evaluating functions, numbers will be substituted in for the variable and give unique answers based on the function rule.
Variables and expressions are useful to represent quantities and relationships in problem-solving situations.
PROPERTIES: COMMUTATIVE, ASSOCIATIVE, AND DISTRIBUTIVE
The commutative, associative, and distributive properties can also be used to simplify addition and multiplication. We can apply these properties to help justify steps in mathematical processes and developing formulas.
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 Click on the icon to find and practice topics for this unit. |
| Unit 26 In and Out Boxes Worksheet |
| Unit 26 In and Out Boxes Worksheet |
| Click here to watch the video on the associative property. |
| Unit 26 Define Activity |
| Click here to watch the video on the commutative property. |
| Unit 26 Define Activity |
| Click here to watch the video on the distributive proper. |
| Unit 26 Define Activity |