Expressions and Equations

Front

What is an exponent?

Back

An exponent is a number that shows how many times a base is multiplied by itself. For example, in 2^3, 2 is the base and 3 is the exponent, meaning 2 is multiplied by itself 3 times (2 × 2 × 2).

Tags

CCSS.6.EE.A.1

Front

What does the distributive property state?

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.

Tags

CCSS.6.EE.A.3

Front

Simplify: 3(x + 2)

Back

3x + 6

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 one or more numbers. For example, in the expression 2x + 3, x is the variable.

Tags

CCSS.6.EE.A.2B

Front

What is a coefficient?

Back

A coefficient is a number that is multiplied by a variable in an expression. For example, in 4x, 4 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 as compact as possible.

Tags

CCSS.7.EE.A.1

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction. For example, in 3x + 4y - 5, there are three terms: 3x, 4y, and -5.

Tags

CCSS.6.EE.A.2B

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, using an equality sign.

Front

Simplify: 5x + 3x

Back

8x

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