# divisibility rules

The flashcards below were created by user ddunback on FreezingBlue Flashcards.

1. If the last digit is even (# ends in a 0,2,4,6, or 8) number is divisible by
2
2. If the sum of the digits is divisible by 3, then the # is also... which number is this
3
3. If the last two digits form a number divisible by 4 then it is also ... which number is this
4
4. If the last digit is 5 or 0 , then the # is divisible by
5
5. If the # is divisible by both 3 and 2 (#is even and rule for 3 is satisfied) # is divisible by
6
6. Take last digit double it and subtract that from the rest of the number; if answer is divisible by 7 (including 0) original # is to...what is this #
7
7. If last 3 digits form # divisible by 8 then so is the original #... what is the #
8
8. If the sum of the digits is divisible by 9 # is to...what is this #
9
9. If # ends in 0 its divisible by
10
10. Alternately add and subtract digits from left to right  include 0. if result is divisible by 11 so is the original #...what is this #
11
11. If the # is divisible by both 3 and 4 it is divisible also by
12
12. Delete the last digit from # then subtract 9 tines the deleted digit from remaining #, if what is left is divisible by 13 so is the original #...what # is this
13
 Author: ddunback ID: 193275 Card Set: divisibility rules Updated: 2013-01-17 00:19:00 Tags: divisibility rules Folders: Description: rules 2-13 for divisibility Show Answers: