Expressions vs equations

Which of the following is an algebraic expression?

• 3 + 17 - k

• 3x - 45 = b

• 25 + 36

• 19 + 14 - 20

Tags

CCSS.6.EE.A.2B

What is the most important difference between an expression and an equation?

• they're spelled different

• an equal sign

• only equations have variables

• only expressions have variables

Tags

CCSS.L.1.5A

CCSS.L.1.5B

CCSS.L.K.5A

How many variables are there in this equation:

3x + 14 - 5y = 42

• 1

• 2

• 3

• 4

Tags

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

Who is/are the coefficient in the following expression?

5x - 8y + 3

• 5

• 8

• 5 and 8

• 3

Tags

CCSS.L.3.2F

Who is the constant in the following:

24x + 4 - 22y = e

• 24x

• 22y

• =

• 4

Tags

CCSS.L.1.5A

CCSS.L.1.5B

CCSS.L.K.5A

In the expression 5x - 3, 5 is the...

• term

• variable

• coefficient

• constant

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.4.6

CCSS.RL.1.4

In the expression 5x - 3, 3 is the...

• just a 3

• variable

• coefficient

• constant

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.4.6

CCSS.RL.1.4

Which of the following is not an equation?

• 2 + 2 = fish

• 2x + 4 = 25

• 3(4 + 5)

• 10 - 2x = 4

Tags

CCSS.L.1.5A

CCSS.L.1.5B

CCSS.L.K.5A

A variable is...

• the number in front of a letter

• a value that does not change

• numbers and letters separated by operations

• an unknown number represented by a letter

Tags

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

A coefficient is...

• the number in front of a variable

• numbers and letter separated by operations

• a value that does not change

• an unknown number represented by a letter

Tags

CCSS.L.2.4E

CCSS.L.3.4D

CCSS.L.6.4C

CCSS.L.7.4C

CCSS.L.8.4C