Divisibility Rules Practice

Front

What is a divisibility rule?

Back

A divisibility rule is a shortcut that helps determine if a number can be divided by another number without actually performing the division.

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 402 divisible by 3?

Back

Yes, because 4 + 0 + 2 = 6, and 6 is divisible by 3.

Front

Is 663 divisible by 9?

Back

Yes, because 6 + 6 + 3 = 15, and 15 is not divisible by 9.

Front

Is 7,002 divisible by both 3 and 9?

Back

Yes, because 7 + 0 + 0 + 2 = 9, and 9 is divisible by both 3 and 9.

Front

Is 712,300 divisible by 5?

Back

Yes, because its last digit is 0.

Front

Is 72 divisible by 3?

Back

Yes, because 7 + 2 = 9, and 9 is divisible by 3.