Evaluate Expressions

Front

Evaluate 7 + j if j = -2

Back

5

Front

What is the first thing you do when evaluating an expression?

Back

Substitute value in for the variable

Front

Evaluate m² – 15 when m = 8

Back

49

Front

Evaluate b² + 4 when b = 3

Back

13

Front

Evaluate 2(a - 5) + 2 when a = 15

Back

22

Front

What does it mean to evaluate an expression?

Back

To calculate the value of the expression by substituting variables with numbers.

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What is the order of operations in mathematics?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - PEMDAS.

Front

What is a constant in mathematics?

Back

A fixed value that does not change.

Front

What is the result of evaluating 3x + 4 when x = 2?

Back

10