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 the expression: 6 + 8f when f = 4.

Back

38

Front

What is the order of operations used in evaluating expressions?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often remembered by the acronym PEMDAS.

Front

Evaluate the expression: (h - 6) + h ÷ 6 when h = 6.

Back

1

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

Evaluate the expression: 4h + 2g + 4 when g = 3 and h = 9.

Back

46

Front

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

Back

4

Front

Evaluate the expression: 5x - 2 when x = -2.

Back

-12

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

Evaluate the expression: 3(x + 4) when x = 2.

Back

18