Divisibility

Front

What is the divisibility rule for 3?

Back

Add up the digits. The sum must be divisible by 3.

Front

What is the divisibility rule for 5?

Back

The last digit needs to be a 5 or 0.

Front

What is the divisibility rule for 10?

Back

The last digit must be a 0.

Front

What is the divisibility rule for 2?

Back

The last digit must be even (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 4?

Back

The last two digits of the number must form a number that is divisible by 4.

Front

What is the divisibility rule for 6?

Back

The number must be divisible by both 2 and 3.

Front

What is the divisibility rule for 8?

Back

The last three digits of the number must form a number that is divisible by 8.

Front

What is the divisibility rule for 9?

Back

Add up the digits. The sum must be divisible by 9.

Front

Which of these numbers is divisible by 3: 123, 124, 125?

Back

123 is divisible by 3.

Front

Which of these numbers is divisible by 5: 27, 30, 31?

Back

30 is divisible by 5.