Evaluating Expressions

Front

Evaluate 4y if y = 3

Back

12

Front

Evaluate 2a + 4b if a = 10 and b = 6

Back

44

Front

Back

7

Front

Evaluate 3x - 7 if x = 6

Back

11

Front

Back

49

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) 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 the variables with their given values.

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

What is a variable in mathematics?

Back

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

Front

What is the difference between an expression and an equation?

Back

An expression is a mathematical phrase that can contain numbers, variables, and operators, while an equation states that two expressions are equal.