Divisibility Rules

Front

What is the divisibility rule for 2?

Back

A whole number is divisible by 2 if its last digit is an even number.

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

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

Front

What are factors?

Back

Factors are numbers that are multiplied together to get a multiple.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer.

Front

Is 35 divisible by 5?

Back

Yes, because the last digit is 5.

Front

Is 28 divisible by 2?

Back

Yes, because the last digit is 8, which is even.

Front

Is 21 divisible by 3?

Back

Yes, because 2 + 1 = 3, which is divisible by 3.

Front

What is the smallest even number?

Back

The smallest even number is 0.