Divisibility rule of 11

Which of the following numbers is NOT divisible by 11?

• 1221

• 1001

• 10001

• 9999

The divisibility rule for 11 is...

• Divide the whole thing by 11

• Multiply the digits together by 11

• If the difference of the sum of its digits in odd places and the sum of it digits in even places,(starting from the unit's place) is divisible by 11

• add the digits together. If the sum is divisible by 11, the original number is divisible by 11

Is 9020814 is divisible by 11 or not

• Yes,it is divisible by 11

• No,it is not divisible by 11

Tags

CCSS.6.NS.B.2