Algebraic Expressions Practice

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, usually a letter, that represents an unknown value. In the expression 2y + 5, 'y' is the variable.

Front

Evaluate the expression when x = 5 and y = 2: 2(9 - y)

Back

14

Front

What does it mean to evaluate an expression?

Back

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

Front

Write the phrase '12 fewer than a number n' as an expression.

Back

n - 12

Front

Use the distributive property to simplify the expression: 8(y + 2)

Back

8y + 16

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by two or more terms inside a set of parentheses.

Front

Evaluate the expression when a = 7, b = 5, and c = 1: ab

Back

35

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable. In the expression 3x, 3 is the coefficient.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. In the expression 2x + 5, 5 is the constant.