Evaluating Algebraic Expressions Finals Review

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with given numbers.

Front

Evaluate the expression for n = -2 and p = 7: np = ?

Back

-14

Front

Back

-8

Front

Evaluate 2r + 1 if r = -3:

Back

-5

Front

Evaluate 3m if m = 4:

Back

12

Front

Evaluate the expression when h = -6: 19 + h = ?

Back

13

Front

What is the value of a variable in an expression?

Back

The value of a variable is the number that replaces the variable in an expression during evaluation.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Often remembered by the acronym PEMDAS.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in 4x, 4 is the coefficient.