Division Rules

Question 1

How do you know if a number is divisible by 2?

Answer 1

If the number’s last digit is divisible by 2.

Question 2

How do you know if a number is divisible by 5?

Answer 2

If the number’s last digit is 0 or 5.

Question 3

How do you know if a number is divisible by 10?

Answer 3

If the number’s last digit is 0.

Question 4

How do you know if a number is divisible by 4?

Answer 4

If the number formed by its last two digits is divisible by 4.

Question 5

How do you know if a number is divisible by 8?

Answer 5

If the number formed by its last three digits are divisible by 8.

Question 6

How do you know if a number is divisible by 9?

Answer 6

If the sum of the number’s digits is divisible by 9.

Question 7

How do you know if a number is divisible by 3?

Answer 7

If the sum of its digits is divisible by 3.