Round each number to the place of the underlined digit.

4,.345

What is the underlined digit?

I think I is an answer because if someone could respond this question how to round

To round a number to a specific place value, you need to locate the underlined digit and look at the digit to the right of it. If the digit to the right is 5 or greater, you round up; if it is less than 5, you round down.

In the number 4.345, the underlined digit is the 3. Now, we will look at the digit to the right, which is a 4. Since 4 is less than 5, we round down.

Therefore, when rounding each number to the place of the underlined digit, 4.345 rounds down to 4.3.