Identify Hundredth Place: Identify the hundredth place in the number 2.789. The hundredth place is the second digit after the decimal point, which is 8 in this case.
Determine Round Up or Down: Look at the digit to the right of the hundredth place to determine whether to round up or down. The digit is 9, which is 5 or more, so we round up.
Add One for Rounding Up: Since we are rounding up, we add 1 to the digit in the hundredth place. So, 8 becomes 9.
Rewrite Number with Rounded Place: Rewrite the number with the rounded hundredth place and drop any digits to the right of it. The number becomes 2.79.