Adding & Subtracting Expressions

Front

What is an expression in mathematics?

Back

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

Tags

CCSS.6.EE.A.2B

Front

What does it mean to add expressions?

Back

Adding expressions involves combining like terms to simplify the expression.

Tags

CCSS.HSA.APR.A.1

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power.

Tags

CCSS.6.EE.A.2B

Front

What is the first step in subtracting expressions?

Back

The first step is to distribute the negative sign across the terms in the expression being subtracted.

Tags

CCSS.HSA.APR.A.1

Front

Solve: (2a-1)-(-5a-5)

Back

7a+4

Tags

CCSS.7.EE.A.1

Front

Solve: (9k+2j)+(11k-2j)

Back

20k

Tags

CCSS.7.EE.A.1

Front

Solve: (5x-1)+(-3x-1)

Back

2x-2

Tags

CCSS.7.EE.A.1

Front

Solve: (-x+2y)+(2x+3y)

Back

x+5y

Tags

CCSS.7.EE.A.1

Front

Solve: (4m-2n)+(-3m-4n)

Back

m-6n

Tags

CCSS.7.EE.A.1

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Tags

CCSS.6.EE.A.3