Evaluating Expressions

Front

Evaluate 3x - 7 if x = 6

Back

11

Front

Evaluate b² + 4 when b = 3

Back

13

Front

Evaluate 4x - 2 when x = 6

Back

22

Front

Evaluate 2y when y = 8

Back

16

Front

Evaluate 2k - 6 when k = 10

Back

14

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 the variables with given numbers.

Front

What is a variable in mathematics?

Back

A variable is a symbol (like x or y) that represents an unknown value.

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).

Front

What is the value of x in the expression 5x + 3 = 18?

Back

x = 3