Evaluating 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 4w - 3y if w = 7 and y = 6

Back

10

Front

Evaluate 5m + 7 if m = 5

Back

32

Front

Evaluate 3d if d = 5

Back

15

Front

Evaluate b² + 3 if b = 9

Back

84

Front

Evaluate n³ if n = 4

Back

64

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents 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 (like addition and multiplication) that represents a value.

Front

What is the order of operations?

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 as PEMDAS.

Front

What is the value of 2x + 3 when x = 4?

Back

11