Unit 3 Vocabulary and Review - 6th Grade Math

What is an expression that represents the following:

 $5\times5\times5\times5$  

•  $5\cdot4$  

•  $5^4$  

•  $4^5$  

•  $5^5$  

What is the meaning of a constant?

• A variable that changes

• A group of variables multiplied together

• A value or number that doesn't change

• an operation such as multiplication

Choose the correct description of the expression:

 $n\times8$  

• the quotient of n and 8

• the product of n and 8

• the sum of n and 8

• the difference of n and 8

In the expression

 $3x-5$  , the 3 is a........

• variable

• coefficient

• term

• constant

A coefficient is..........

• a number before a variable

• a variable without a number in front of it

• the last term of an expression

• a term with a number and a variable

In the expression,

 $7y\ -\ 2$  , the y is ...........

• a coefficient

• a number

• a variable

• a constant

Use the order of operations to evaluate the following:

 $8\times4-8\div2\times3+2^2$  

•  $4$  

•  $24$  

•  $40$  

•  $84$  

Evaluate the expression for a = 1 and b = 2:

 $28-12\div b+2a$  

•  $10$  

•  $16$  

•  $20$  

•  $24$  

PEMDAS is a(n) ______________ to help remember order of operations.

• acronym

• synonym

• antonym

• homonym

 $5\left(a-10\right)\ written\ without\ parentheses\ is\ equal\ to....$  

•  $5a-10$  

•  $5a-5$  

•  $5a-50$  

•  $10a-5$