Divisibility rules

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 10?

Back

A number is divisible by 10 if its last digit is 0.

Front

Is 804 divisible by 3?

Back

Yes, because 8 + 0 + 4 = 12, and 12 is divisible by 3.

Front

Is 460 divisible by 10?

Back

Yes, because its last digit is 0.

Front

Can 70 be evenly divided by 5?

Back

Yes, because 70 ÷ 5 = 14.

Front

What is an even number?

Back

An even number is any integer that is exactly divisible by 2.

Front

Which of the following is an even number: 1, 9, 4, 5?

Back

4 is an even number.