Evaluating Expressions

Front

Evaluate 3d if d = 5

Back

15

Front

Evaluate the expression when x = 3: 2x² - 5

Back

13

Front

Evaluate x ÷ 4 if x = 80

Back

20

Front

Evaluate y + 17 if y = 11

Back

28

Front

Evaluate when x = 8: 2x + x - 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 variables with numbers.

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). (PEMDAS)

Front

If x = 4, what is the value of 3x + 2?

Back

14

Front

If a = 2 and b = 3, what is the value of 2a + 3b?

Back

13