TESTS OF DIVISIBILITY

A number is divisible by 2 if ...

• it is even and ends in 0,2,4,6 or 8

• it is uneven

A number is divisible by 5 if ...

• it ends in 1 or 2

• it ends in 5 or 0

A number is divisible by 10 if ...

• it ends in 3

• it ends in 0

True or False...
40,500 is divisible by 6

• True
• False

Which of the following numbers is NOT divisible by 4?

• 1000
• 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.

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

• 1
• 2
• 3
• 5

642 IS DIVISIBLE BY 3 AND 2

• TRUE

• FALSE

545 IS DIVISIBLE BY

• 2

• 5

• 3

• 6

543 IS DIVISIBLE BY

• 2

• 3

• 6

• ALL OF THE ABOVE