Evaluate Expressions

Front

Evaluate 2r + 1 if r = 3

Back

7

Front

Evaluate 4y if y = 3

Back

12

Front

What is the value of x + y if x = 3 and y = 5?

Back

8

Front

Evaluate 7y - 3y for y=2

Back

8

Front

Evaluate r(r – 9) if r = 11

Back

22

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 (like x or y) that represents an unknown value.

Front

What is the order of operations?

Back

The order of operations is a set of rules that defines the correct sequence to evaluate a mathematical expression: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is the value of 5 + 3 * 2?

Back

11