Divisibility Rules!

Front

What is an even number?

Back

An even number is any integer that is exactly divisible by 2, meaning it has no remainder when divided by 2. Examples include 0, 2, 4, 6, 8, etc.

Front

Which digit must a number end with to be divisible by 5?

Back

A number must end with a 5 or a 0 to be divisible by 5.

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).

Front

How can you tell if a number is divisible by 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What is the divisibility rule for 4?

Back

A number is divisible by 4 if the last two digits form a number that is divisible by 4.

Front

What is the divisibility rule for 6?

Back

A number is divisible by 6 if it is divisible by both 2 and 3.

Front

How do you know if a number is divisible by 10?

Back

A number is divisible by 10 if it ends with a 0.

Front

What is the divisibility rule for 12?

Back

A number is divisible by 12 if it is divisible by both 3 and 4.

Front

Which of the following numbers is not divisible by 5: 75, 395, 222, 8,943?

Back

8,943 is not divisible by 5.

Front

If a number is divisible by 2 and 3, is it also divisible by 6?

Back

Yes, if a number is divisible by both 2 and 3, it is also divisible by 6.