Evaluating Expressions

Front

Evaluate m² if m = 7

Back

49

Front

Evaluate 3b - 5 if b = -2

Back

-11

Front

Evaluate -4x + 5 if x = -3

Back

17

Front

Evaluate 3x - 7 if x = 6

Back

11

Front

Evaluate 5x + 4y if x = 3 and y = 2

Back

23

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown 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).

Front

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

Back

x = 4