Divisibility Rules! (2, 3, 5, 6, 9, 10)

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

Is 24 divisible by 6?

Back

Yes, because 24 is divisible by both 2 and 3.

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

Is 45 divisible by 5?

Back

Yes, because the last digit is 5.

Front

What is the divisibility rule for 10?

Back

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

Front

Is 81 divisible by 9?

Back

Yes, because the sum of the digits (8 + 1 = 9) is divisible by 9.

Front

What is the divisibility rule for 6?

Back

A number is divisible by 6 if it is divisible by both 2 and 3.

Front

Is 100 divisible by 5?

Back

Yes, because the last digit is 0.

Front

What is the sum of the digits of 252?

Back

2 + 5 + 2 = 9.

Front

Is 39 divisible by 3?

Back

Yes, because the sum of the digits (3 + 9 = 12) is divisible by 3.