Divisibility Rules

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if it ends in 0, 2, 4, 6, or 8.

Front

What is the divisibility rule for 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 5?

Back

A number is divisible by 5 if it ends in 0 or 5.

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

What is the divisibility rule for 9?

Back

A number is divisible by 9 if the sum of its digits is divisible by 9.

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if it ends in 0.

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

How can you determine if a number is divisible by 8?

Back

A number is divisible by 8 if the last three digits form a number that is divisible by 8.

Front

What is the divisibility rule for 11?

Back

A number is divisible by 11 if the difference between the sum of the digits in odd positions and the sum of the digits in even positions is divisible by 11.

Front

What is the divisibility rule for 12?

Back

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