rule of divisible by 11
Answers
Answer:
if the difference between the sum of numbers at odd place(starting from unit place) and the sum of the numbers at even place(starting from tens) is 0 or divisible by 11 it the whole number is divisible by 11
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Step-by-step explanation:
Divisibility rule for 11:
If in any number the sum of the numbers in the even positions = sum of the odd numbers in the odd positions, then the number is divisible by 11. Alternatively, the difference of the sum of the numbers in even positions and the sum of the numbers in the odd positions = 11.
Example 1: 9317. Here 9+1 = 10 , same as 3+7. Hence 9317 is divisible by 11.
Example 2: 163713. Here 1+3+1 = 5 and 6+7+3 = 16. The difference between the two = 16–5 = 11, so 163713 is divisible by 11.