Find a counterexample to show that the following statement Is false. The sum of two digit numbers is a three digit number

See explanation below.

Step-by-step explanation:

We have the statement that says that the sum of two two-digit numbers is a three digit number.

To prove that this statement is false, we only need to give a counterexample. This means that we have to find two two-digit numbers that does not sum a three digit number.

Let's take 11 and 12, if we sum them we have: 11 + 12 = 23.

23 is clearly a two digit number.

Therefore, the sum of two two-digit numbers is not a three digit number.