Divisibility Rules

Front

What is a divisibility rule?

Back

A divisibility rule is a guideline that helps determine if one number can be divided by another without leaving a remainder.

Front

If a number ends in 0 or 5, it is divisible by which number?

Back

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

If a number is divisible by both 2 and 3, what other number is it also divisible by?

Back

6

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

Which numbers are divisible by 10?

Back

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

Front

If a number is divisible by 4, what can be said about its last two digits?

Back

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

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Front

If a number is divisible by 6, what must it be divisible by?

Back

It must be divisible by both 2 and 3.

Front

What is the divisibility rule for 8?

Back

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