Evaluating Expressions

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their given values.

Front

Evaluate 3d if d = 5

Back

15

Front

What is the formula for evaluating an expression with a variable?

Back

Substitute the variable with its value and perform the operations according to the order of operations.

Front

Evaluate 6y - 13 if y = 4

Back

11

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

Evaluate 5m + 7 if m = 5

Back

32

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value in an expression.

Front

Evaluate 2k - 6 when k = 10

Back

14

Front

What is the distributive property in mathematics?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute the multiplication over addition.

Front

Evaluate 3(x + 4) when x = 2

Back

18