Evaluating Expressions

Front

Evaluate 3b + 4c if b = 9 and c = 3

Back

39

Front

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

Back

-2

Front

Evaluate x ÷ 4 if x = 80

Back

20

Front

Evaluate b² + 3 if b = 9

Back

84

Front

Evaluate 4x - 2 when x = 6

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 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 abbreviated as PEMDAS.

Front

If x = 5, what is the value of 2x + 3?

Back

13

Front

What is the value of 10 - 2(3 + 1)?

Back

6