Divisibility by 3, 9, 6

Front

What is the divisibility rule for 3?

Back

Add up the digits. The sum must be divisible by 3.

Front

Which of these numbers is divisible by 3: 3131, 71, 6043, 804?

Back

804

Front

Is 19,584 divisible by 9?

Back

Yes

Front

If Acme Marble Company has 4,052,043 marbles, how many can go in each bag if they want no marbles left over? Options: 5, 2, 9, 6

Back

9

Front

If Acme Marble Company has 4,062,153 marbles, how many can go in each bag if they want no marbles left over? Options: 4, 3, 9, 10

Back

3

Front

What is the divisibility rule for 9?

Back

Add up the digits. The sum must be 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 123456 divisible by 3?

Back

Yes, because 1+2+3+4+5+6 = 21, which is divisible by 3.

Front

Is 987654 divisible by 9?

Back

Yes, because 9+8+7+6+5+4 = 39, which is divisible by 9.

Front

Is 246 divisible by 6?

Back

Yes, because it is even (divisible by 2) and 2+4+6 = 12 (divisible by 3).