1. Divisibility Rules

2. What is Divisibility?
A number is divisible by another number when after dividing there is NO remainder.

3. Divisibility Rules Can Help You!
Do you know how to tell if a number is divisible by 2? By 3? How about 5 or 10? Or even 6 or 9.
Divisibility Rules help you to use shortcuts to determine whether a number is divisible by another number.

4. 356,821
Can you tell just by looking at this number if it is divisible by 2?
By 3 or 9?
By 5 or 10?
How about 6?

5. Divisibility Rules help you learn SHORTCUTS that help you determine whether a number is divisible by another with no remainder.

6. Popular Divisibility Rules
A number is divisible by 2 if the number is even
A number is divisible by 5 if it ends in a 0 or 5
A number is divisible by 10 if it ends in 0
A number is divisible by 3 if the sum of its digits is divisible by 3
A number is divisible by 9 if the sum of its digits is divisible by 9
A number is divisible by 6 if the number is divisible by both 2 and 3

7. To learn more about these and other divisibility rules visit Dr
To learn more about these and other divisibility rules visit Dr. The Math Forum