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Factoring
divisibility rules, prime and composite numbers, and factoring
12
Mathematics
6th Grade
11/29/2010

Additional Mathematics Flashcards

 


 

Cards

Term
divisible by 2
Definition
if the number is even
Term
divisible by 3
Definition
if the sum of the number's DIGITS are divisible by 3
Term
divisible by 4
Definition

If the last two digits of a number are divisible by 4

OR

if the last two digits are 00

Term
divisible by 5
Definition
if the last digit is a 5 or a 0.
Term
divisible by 6
Definition
if the number is divisible by 2 AND 3.
Term
divisible by 7
Definition

NO RULE!!!

 

DIVIDE!!!! Sorry!

Term
divisible by 8
Definition
the last 3 digits are divisible by 8
Term
divisible by 9
Definition

add up all the digits and the sum will be divisible by 9

OR

Keep adding till you get to a single digit and that digit will be 9

Term
divisible by 10
Definition
if the last digit in the number is 0
Term
Prime Numbers
Definition

a numbers only multiples are 1 and itself

 

EX:

 

11= 11x1

7 = 7x1

Term
Composite number
Definition

numbers that more factors than 1 and itself

 

Example:

10- (1,2,5,10)

Term
How do we convert a fraction to a decimal?
Definition
divide the numerator into the denominator
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