Question

use the divisibility test to find whether the following numbers are divisible by 11​

Answer 1

Answer:

★ DIVISIBILITY RULE OF 11

Take the alternating sum of the digits in the number, read from left to right. If that is divisible by 11, so is the original number.

So, for instance, 2728 has alternating sum of digits 2-7+2-8 = -11. Since -11 is divisible by 11, so is 2728.