Students can use divisibility rules to solve problems

A dish company needs to ship an order of 190 glass bowls. The company will put the bowls into several boxes. Each box must contain the same number of bowls. How many boxes could the company use for the order?

• 3

• 4

• 6

• 10

A gum factory made 7,180 sticks of gum. After arranging the sticks into packs, the factory did not have any extra sticks of gum. How many sticks of gum could the factory be putting in each pack?

• 3

• 4

• 6

• 9

A warehouse holds 8,004 shoeboxes. Each aisle holds the same number of boxes. How many aisles could there be?

• 2

• 5

• 9

• 10

Brennan's little brother is playing with blocks. He wants to put all 28 of his blocks into stacks with the same number of blocks in each stack. How many stacks could Brennan's brother make?

• 2

• 3

• 6

• 9

Cindy made 250 greeting cards to sell. She will sell the cards by the box, with the same number of cards in each box and no cards left over. How many cards could Cindy put in each box?

• 4

• 5

• 6

• 9

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

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

Is 1,284,604 divisible by 2?

• Yes, because the sum of the digits is 20, which is an even number

• No, because 4 is an odd number

• Yes, because 4 is an even number

• No, because the it is not divisible by 3

What is the divisibility rule for 3?

• Add up the digits. The sum must be an even number

• The digits must add up to 9.

• The last digit must be a 3.

• Add up the digits. The sum must be a multiple of 3.

Is 81 divisible by 3?

• Yes, because the sum of the digits is 9, a multiple of 3

• No, because 81 is an odd number

• Yes, because 81 is an odd number

• No, because 81 does not end in 3

Is 816 divisible by 3?

• Yes
• No