Divisibility Test after Jigsaw

what is the divisibility rule for 4

• Last two numbers divisible by 4

• Last 3 numbers divisible by 4

• Add all of the digits and divide by 4

• Even number

Why does the divisibility rule for 6, that if a number is divisible by 2 and 3 then it is divisible by 6.

• Because 2x3= 6

• 2 and 3 are the prime factors for 6

• You add up all of the digits and then divide by 6.

Which number is divisible by 4 and 8

• 6657

• 7990

• 554672

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

• 3

• 4

• 6

• 8

Which number is divisible by 2,3,4,5,6,8,9, and 10

• 2 520

• 765 894

• 820

The number with unit place 0 is divisible by 10.

• true

• false

Is 11309634 divisible by 8?

• Yes

• No

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

How will you test to see if 1443 is divisible by 13?