Divisibility Rules Challenge

This video tutorial covers the rules for determining if a number is divisible by 2, 3, 4, 5, 6, 8, 9, and 10. It explains each rule with examples, such as checking the last digit for divisibility by 2, summing digits for divisibility by 3, and checking the last two digits for divisibility by 4. The video also discusses the combination of rules, like divisibility by 6, which requires divisibility by both 2 and 3. Practical examples are provided to illustrate how to apply these rules to different numbers.

Which of the following numbers is divisible by 2?

• 431

• 514

• 513

• 512

If the last two digits of a number are 24, is the number divisible by 4?

• Yes

• Only if the number is odd

• No

• Only if the number is even

A number is divisible by 8 if:

• The sum of the digits is divisible by 8

• The last three digits are divisible by 8

• The last two digits are divisible by 8

• The last digit is 8

What is the rule for a number to be divisible by 3?

• The number is even

• The number ends in 3

• The sum of the digits is divisible by 3

• The last digit is 3

A number is divisible by 6 if:

• It is divisible by 3 and 5

• It is divisible by 2 and 4

• It is divisible by 3 and 4

• It is divisible by 2 and 3

If the sum of the digits of a number is 18, is the number divisible by 9?

• Only if the number is odd

• Only if the number is even

• No

• Yes

Which of the following numbers is divisible by 10?

• 5823

• 5822

• 5821

• 5820

A number is divisible by 5 if:

• It ends in 0 or 2

• It ends in 0 or 5

• It ends in 1 or 5

• It ends in 2 or 5

If a number ends in 4, is it divisible by 2?

• Yes

• Only if the number is less than 10

• No

• Only if the number is greater than 10

Is the number 270 divisible by 9?

• Only if it is odd

• Yes

• No

• Only if it is even