Evaluate Expressions

Front

What does it mean to evaluate an expression?

Back

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

Front

Evaluate m² + 12q if m = 5 and q = -3.

Back

-11

Front

If x = 3, solve x + 4.

Back

7

Front

Evaluate 8a - b if a = 10 and b = 6.

Back

74

Front

Evaluate 3x + 8 if x = 2.

Back

14

Front

Evaluate -2x if x = 10.

Back

-20

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent a number that can change or vary.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations without an equality sign.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is the value of x in the equation 2x + 3 = 11?

Back

4