A number is divisible by 11 if the _______________ of the sums of alternating digits is 0 or 11.
Question
A number is divisible by 11 if the _______________ of the sums of alternating digits is 0 or 11.
Solution
The answer to your question is "difference". A number is divisible by 11 if the difference of the sums of alternating digits is 0 or 11.
Here's the step-by-step process:
- Write down the number.
- Group the digits of the number in alternating order. This means you group the first digit, the third digit, the fifth digit, and so on in one group. Then, group the second digit, the fourth digit, the sixth digit, and so on in another group.
- Sum the digits in each group.
- Subtract the sum of one group from the sum of the other group
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