Algebra

Question 1

Quantity

Answer 1

Anything that can be measured or counted

Question 2

Variable Quantities

Answer 2

Values that can change or vary

Question 3

Variable

Answer 3

A symbol, usually a letter, that represents the value of a quantity.

Question 4

algebraic expression

Answer 4

a mathematical phrase that includes one or more variables.

Question 5

numerical expression

Answer 5

a mathematical phrase involving numbers and operation symbols, but no variables

Question 6

power

Answer 6

has a base part and an exponent part

Question 7

exponent

Answer 7

tells you how many times to use the base as a factor

Question 8

factor

Answer 8

numbers that are multiplied to find a product

Question 9

base

Answer 9

the factor that is repeated in a power

Question 10

simplify

Answer 10

a numerical expression that is replaced with its single numerical value

Question 11

evaluate

Answer 11

replacing each variable with a given number and calculate

Question 12

perfect square

Answer 12

the square of an integer

Question 13

square roots

Answer 13

the number that was multiplied by itself to find a product

Question 14

principal square root

Answer 14

non-negative square root

Question 15

radicand

Answer 15

expression under the square root symbol

Question 16

radical

Answer 16

square root symbol and radicand together

Question 17

set

Answer 17

a well-defined collection of objects

Question 18

elements

Answer 18

each object in a set

Question 19

subset

Answer 19

consists of elements from within the given set

Question 20

rational numbers

Answer 20

any number that you can write as a fraction. i.e. 1/2

Question 21

natural numbers

Answer 21

counting numbers starting at one and going higher {1,2,3,…}

Question 22

whole numbers

Answer 22

counting numbers and including zero. i.e. {0,1,2,3,…}

Question 23

integers

Answer 23

whole numbers and including their opposites. i.e. {…-2,-1,0,1,2,…}

Question 24

irrational numbers

Answer 24

cannot be written as a fraction

Question 25

real numbers

Answer 25

the set of rational and irrational numbers

Question 26

equivalent expressions

Answer 26

algebraic expressions that have the same value for all values of the variables

Question 27

commutative properties

Answer 27

order of addition doesn’t matter; order of multiplication doesn’t matter

Question 28

associative properties

Answer 28

order of addition doesn’t matter; order of multiplication doesn’t matter

Question 29

additive identity property

Answer 29

adding zero to a value keeps the value the same

Question 30

zero property of multiplication

Answer 30

the product of a value and zero is always zero

Question 31

multiplication property of -1

Answer 31

the product of a value and -1 is always the opposite of the value.