Divisibility Rule of 3, 6, and 9

What is the divisibility rule of 3?

• The sum of the digits is a number divisible by 3

• The last digit is a 3

• The last two digits form a number divisible by 3

• The last digit is zero

What is the divisibility rule of 9?

• The sum of the digits is a number divisible by 3

• The sum of the digits is a number divisible by 9

• The last two digits form a number divisible by 3

• The last digit is zero

What is the divisibility rule for 6?

• It is divisible by 2 and 3

• It is divisible by 3 and 4

• It is divisible by 2 and 4

• The last digit is zero

2520 is divisible by 6 because:

• It is divisible by 2 (even) and 5 (ends in a 0 or 5)

• The sum of the digits is 12, a multiple of 6

• It's divisible by 2 (even) and 3 (sum of digits is a multiple of 3)

• The sum of the digits is even

Tags

CCSS.4.OA.B.4

Which number is divisible by 6?

• 1782

• 1213

• 536

Which number is divisible by 9?

• 345

• 8522

• 98874

Which number is divisible by 9?

• 65 968

• 4 321

• 432

If a number is divisible by 9 what other number is it divisible by?

• 3

• 4

• 6

• 8

Tags

CCSS.4.OA.B.4

You have two numbers, 36 and 72. What number can you divide out of both of them?

• 9
• 3
• 6
• All of the above

Tags

CCSS.6.NS.B.4

252 is divisible by 9 because:

• The digits add up to 18.

• The sum of the digits is divisible by 9.

• It's even and the sum of the digits is divisible by 3.

• The sum of the digits is even.