Dividing by 2 : All even numbers are divisible by 2. E.g., all numbers ending in 0,2,4,6 or 8.
Dividing by 3 :
Dividing by 3 :
- Add up all the digits in the number.
- Find out what the sum is. If the sum is divisible by 3, so is the number
- For example: 12123 (1+2+1+2+3=9) 9 is divisible by 3, therefore 12123 is A also
Dividing by 4 : If the last two digits in your number divisible by 4 then that number is divisible by 4
Dividing by 5 : Numbers ending in a 5 or a 0 are always divisible by 5.
Dividing by 6 :If the Number is divisible by 2 and 3 it is divisible by 6 also.
Dividing by 7 :
* Take the last digit in a number.
* Double and subtract the last digit in your number from the rest
of the digits
* Repeat the process for larger numbers.
* Example: 357 (Double the 7 to get 14. Subtract 14 from 35 to
get 21 which is divisible by 7 and we can now say
that 357 is divisible by 7.
Dividing by 8 : If the last three digits are divisible by 8 , so is the entire number
Dividing by 9 :
* Add up all the digits in the number
* Find out what the sum is. If the sum is divisible by 9, so is the
number
* For example: 43785 (4+3+7+8+5=27) 27 is divisible by 9, therefore
43785 is also
Dividing by 10 :If the number ends in a 0, it is divisible by 10.
* Take the last digit in a number.
* Double and subtract the last digit in your number from the rest
of the digits
* Repeat the process for larger numbers.
* Example: 357 (Double the 7 to get 14. Subtract 14 from 35 to
get 21 which is divisible by 7 and we can now say
that 357 is divisible by 7.
Dividing by 8 : If the last three digits are divisible by 8 , so is the entire number
Dividing by 9 :
* Add up all the digits in the number
* Find out what the sum is. If the sum is divisible by 9, so is the
number
* For example: 43785 (4+3+7+8+5=27) 27 is divisible by 9, therefore
43785 is also
Dividing by 10 :If the number ends in a 0, it is divisible by 10.
Dividing by 11 : A number is divisible by 11 ,when the difference between the sum of
alternative numbers is divisible by 11
alternative numbers is divisible by 11
Dividing by 12: A number is divisible by 12 when it is divisible by both 3&4
