Divisibility Rules Practice

Front

What is a divisibility rule?

Back

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

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

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 its last digit is 0 or 5.

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

Is 409 divisible by 9?

Back

No

Front

Is 108 divisible by 9?

Back

Yes

Front

Which of the following numbers is divisible by both 3 and 9: 402, 663, 7,002, 57?

Back

7,002

Front

How do you determine if a number is divisible by 9?

Back

You find the sum of all the digits in the number. If the sum is some multiple of 9, then that number is ALWAYS divisible by 9.

Front

Is 712,300 divisible by 5?

Back

Yes