Divisibility Rules

What is the divisibility rule of 2?

• The sum of the digits equals a number divisible by 2

• The last digit is 0

• The last two digits form a number that is divisible by 2

• The last digit is even

What is the divisibility rule for 5?

• It is divisible by 2 and 3

• The last digit is a five

• The last digit is five or zero

• The last digit is zero

A number is divisible by 10 if

• It is even

• It ends in 0

• It ends in 0 or 5

• The sum of the digits is a multiple of 10

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 137,265 divisible by 5?

• No

• Yes

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

• 1050

• 155

• 980

• 2938

Is 1,943,806 divisible by 2?

• Yes

• No

Is 60,714 divisible by 3?

• Yes

• No

Which of these numbers is divisible by 2 AND 5?

• 675

• 674

• 670

• 673

Is 81 divisible by 3?

• Yes

• No