Arithmetic

Question 1

Integers
\+ x + = 
- x - =
\+ x - = 
Each of the multiplied integers is called a \_\_\_\_\_ or \_\_\_\_\_\_ of the resulting 
product (\_\_\_\_\_\_)

Answer 1

+
+
-
factor, divisor, multiple

Question 2

The Least Common Multiple

of 30 and 75 is

Answer 2

150

Question 3

The Greatest Common Divisor

of 30 and 75 is

Answer 3

15

Question 4

Quotient

19/7 =

Answer 4

2 remainder 5

Question 5

Prime Number

Answer 5

A prime number is an integer greater than 1 that has only two positive divisors: 1 and itself.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
1 is not a prime number and 2 is the only even prime number

Question 6

Every integer greater than 1 either is a prime number or can be uniquely expressed as a product of factors that are prime numbers, or prime divisors. Such an expression is called a prime factorization. An integer greater than 1 that is not a prime number is called a…

Answer 6

composite number

Question 7

negative can be above or below?

-7/5 = 7/-5

Answer 7

Yes

-7/5 = 7/-5

Question 8

to add or subtract two fractions with different denominators first find a…

Answer 8

common denominator

Question 9

two multiply two fractions

Answer 9

multiply the two numerators and multiply the two denominators

Question 10

two divide two fractions

Answer 10

multiple the first fraction by the reciprocal/inverse of the second

Question 11

When negative numbers are raised to powers, the result may be

Answer 11

positive or negative

Question 12

(-3)^2 = (-3)(-3) = 9

but -3^2 without the parentheses means the negative of 3 squared and equals

Answer 12

-9

Question 13

a^0 = 
0^0 = 
a^-1=
a^-2=
square root of 0 = 
(square root a)^2 = 
square root of a^2=
(square root of a) x (square root of b) = 
(square root of a) / (square root of b) =

Answer 13

1
undefined
1/a
1/a^2
0
a
a
(square root of a x b)
(square root of a / b)

Question 14

cube root of 8 =

Answer 14

2

is the cube root of

Question 15

the number 7,532.418 have the

following place values

Answer 15

7 thousands
5 hundreds
3 tens
2 ones
.
4 tenths
1 hundredths
8 thousandths

Question 16

2+3/10 =
612/1000=
in decimal form

Answer 16

2.3
.612
in fraction form

Question 17

decimals either terminate or repeat

but some do not, such as pi, these are called…

Answer 17

irrational numbers

Question 18

The set of all real numbers that are between 2 and 3 are an

Answer 18

interval

23

Question 19

The distance between a number x and 0 on the number line is called the absolute value of x = IxI
I3I=I-3I=

Answer 19

3

the absolute value of

Question 20

If ab=0, then

Answer 20

a or b must equal 0

Question 21

division by 0 is

Answer 21

undefined

is the what by 0

Question 22

ratio of s to t can be written as

ration of r to s to t

Answer 22

s/t or s:t

r:s:t

Question 23

ration of 9 to 12 is equivalent to

Answer 23

3 to 4

Question 24

to solve a proportion…

x/49=3/21

Answer 24

cross multiple and divide

7

Question 25

1 percent means

Answer 25

1 part our of 100 parts, or 1/100

Question 26

.01%= what fraction

Answer 26

.01/100=.0001 | what percent equals this

Question 27

Find 30% of 350

Answer 27

x=350 x .3 = 105 or use a proportion x/350=30/100, cross multiply and divide

Question 28

If a quantity increases from 600 to 750, then the percent increase is found by percent decrease is found by

Answer 28

dividing the amount of increase, 150, by the base, 600, which is the initial number 750-600/600 = 150/600=.25,25% increase dividing the change over the base