Answer:
81
Explanation:
Hi ! Our task is to determine which of these numbers is divisible by 3. To answer that, we will apply the divisibility test to each of these numbers.
Divisibility Test by 3
Simply add all the digits of the number. If the sum of the digits is a multiple of 3, then the number is divisible by 3. So let's give it a try !
Our first number is 76. So,
7 + 6 = 13
Oops - not a multiple of 13! Moving on,
53 = 5 + 3 = 8
Moving on,
81 = 8 + 1 = 9
Yess! This one is divisible by 3 !
Moving on,
94 = 9 + 4 = 13
Moving on,
62 = 6 + 2 = 8
So, out of all the numbers, only 81 is divisible by 3.
In summary, the divisibility test by 3 is a quick and convenient way to determine whether or not a number is divisible by 3. And you can try it with larger numbers, too, numbers that have 3, 4, 5 digits or more ! Just make sure to add the digits correctly, and you're good to go! (: