Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

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 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 parenthesis.

Tags

CCSS.6.EE.A.3

Front

Simplify the expression: 5(2 - 7n)

Back

10 - 35n

Tags

CCSS.6.EE.A.3

Front

What is the result of combining like terms in an expression?

Back

Combining like terms in an expression results in a simpler expression with fewer terms.

Tags

CCSS.7.EE.A.1

Front

Simplify the expression: 6 + 2(7x - 3)

Back

14x

Tags

CCSS.6.EE.A.3

Front

What is a variable in an expression?

Back

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

Tags

CCSS.6.EE.A.2B

Front

Simplify the expression: 3 + 2c - 4c - 9 + 11c

Back

9c - 6

Tags

CCSS.7.EE.A.1

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