Qual é o maior número natural com 2 algarismos que seja múltiplo de 19

The largest 2-digit natural number that is a multiple of 19 is 96.

Explanation:

The question is in Portuguese. The question is English is: which is the largest 2-digit natural number that is a multiple of 19?

The first multiple of 19 is itself: 19.

The next multiple is 19 * 2 = 38

To find the multiples of a number, you can either add 19 each time or multiply 19 by each natural number: 1, 2, 3, 4, 5, ...

This is the complete list of natural numbers with two digits that is multiple of 19::

19 * 1 = 19 19 * 2 = 38 19 * 3 = 57 19 * 4 = 76 19 * 5 = 96

The next multiple will have more than two digits: 114. Hence, the answer is 96.