Variables and Expressions Part 1

In math, what is a variable?

• Someone that is intelligent.

• A symbol or letter that represents a value that we do not know.

• There are no variables in Math. Math is numbers NOT letters

A mathematical sentence stating that two expressions are equal is called a ...

• variable

• expression

• equation

• term

A letter used to represent a number value in an expression or an equation is called a ...

• term

• coefficient

• constant

• variable

Combination of numbers, operations, and variables which can be evaluated for a given value of the variables is an ...

• equation

• expression

• term

• coefficient

To replace variables with values and then simplify using the order of operations is to ....

• term

• expression

• evaluate

• constant

A number that does not change (it stands alone without any variable attached) is called a ...

• constant

• coefficient

• variable

• term

A number used to multiply a variable. It is the number "attached" to a variable is called the ....

• constant

• coefficient

• term

• expression

5y = 7 is an example of an ____________

• expression

• equation

5y - 7 is an example of an ____________

• expression

• equation

In 8r - 3 , the COEFFICIENT is ___

• 8

• r

• -

• 3