Practice Objectives

- Demonstrate the ability to determine if a number is divisible by 7
- Demonstrate the ability to determine if a number is divisible by 11

## Practice the Divisibility Rules for 7 & 11

Instructions:

Answer 7/10 questions correctly to pass.

Determine if the given number is divisible by .

Problem:

Correct!

Not Correct!

Your answer was: 0

The correct answer was: 0

Divisibility by 7:

- We start by removing the final digit from the number, double the number and subtract it away from the shortened original number
- If the number formed is a 0 or a number that is divisible by 7, the original number is divisible by 7. We can repeat the process as needed

Divisibility by 11:

- Form the sum of the digits in the odd places and subtract away the sum of the digits in the even places
- The odd places refer to the 1st digit, 3rd digit, 5th digit, and so on
- The even places refer to the 2nd digit, 4th digit, 6th digit, and so on
- Note, we can count our digits starting from right to left or left to right. This can result in a sign difference, which is not important
- If the result is a 0 or a number that is divisible by 11, then the original number is divisible by 11

Step-by-Step:

You Have Missed 4 Questions...

Your answer should be a number!

Current Score: 0%

Correct Answers: 0 of 7

Wrong Answers: 0 of 3

Need Help?

Video Lesson Written Lesson

Wow! You have mastered Divisibility Rules for 7 & 11!

Correct Answers: 0/0

Your Score: 0%