Divisibility Rules

All of these numbers are divisible by 5 except for...

• 75,395
• 984,940
• 222,222,235
• 8,943,892

Insert the correct digit to make the following number divisible by 3.
60__2

• 1
• 2
• 3
• 5

Is 36,928 divisible by 4?

• Yes
• No

Is 848,960 divisible by 10?

• Yes
• No

Which of the following numbers is NOT divisible by 4?

• 1016

• 1566

• 5740

• 2024

The divisibility rule for 9 is...

• Divide the whole thing by nine
• Add the digits together.  If the sum is divisible by 9, the original number is divisible by 9
• Multiply the digits together by 9
• Add the digits together and then add 9.

252 is divisible by 6 because:

• The digits add up to 6.

• The sum of the digits is divisible by 6.

• It's divisible by both 2 and 3.

• The sum of the digits is even.

The number 234 is divisible by what numbers?

• 2 and 3
• 2 and 4
• 2, 3, and 6
• 2, 3, 6, and 9

Paul is packing up his bookshelf. If he has 48 books and 4 boxes to pack them in, how many books will he have in each box?

• 10

• 11

• 12

• 13

Jerry was playing a card game with 33 cards.  If he and two other people are playing, how many will each person get dealt?  

• 10
• 11
• 12
• 13