Simplifying Expressions

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in 5x, 5 is the coefficient.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and perform any operations to make the expression easier to understand or calculate.

Tags

CCSS.7.EE.A.1

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms.

Tags

CCSS.6.EE.A.2B

Front

What is a constant term in an expression?

Back

A constant term is a term that does not contain any variables. For example, in the expression 3y + 5, the number 5 is the constant term.

Tags

CCSS.6.EE.A.2B

Front

How do you combine like terms?

Back

To combine like terms, you add or subtract the coefficients of the terms that have the same variable. For example, 3x + 5x = 8x.

Tags

CCSS.7.EE.A.1

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 each term inside a parentheses.

Tags

CCSS.6.EE.A.3

Front

How do you factor an expression?

Back

Factoring an expression means to write it as a product of its factors. For example, 5x + 15 can be factored as 5(x + 3).

Tags

CCSS.7.EE.A.1

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

What does it mean to evaluate an expression?

Back

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

Tags

CCSS.6.EE.A.2C

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. For example, in 3y, y is the variable.

Tags

CCSS.6.EE.A.2B