Evaluating Expressions

Front

Evaluate m² if m = 7

Back

49

Front

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

Back

-2

Front

Evaluate 3r + 2e; r = 3 & e = 2

Back

13

Front

Evaluate x ÷ 4 if x = 80

Back

20

Front

Evaluate 5m + 9n if m = -7 and n = 4

Back

1

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 in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

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

Back

13

Front

Evaluate 4x - 7 when x = 3

Back

5