Divisibility Rules

Rule for 1. All whole numbers are divisible by 1.

Rule for 2. All even numbers are divisible by2.

Rule for 3. Add all the digits together than see if it is divisible by .

Rule for 4. All numbers that are divisible by 2 times.

Rule for 5. All whole numbers that end with witha 5 or a 0.

Rule for 6. If the number is divisible by 2 and 3 it is divisible by 6.

Rule for 7. No rule!, try to find one!

Rule for 8.All numbers divisible by 2 twice.

Rule for 9. Add all the digits together than see if it is divisible by 9.

Rule for 10. All whole numbers that end with a 0

Hope this helps!