Answer
I would say 0.79 or 0.8
Step 1: Locate and underline the hundredth place (8) and look to the right (9)
0.789
Step 2: In this case, the digit to the right (9) is 5 or above. So, we add 1 to the hundredth place (8). The digit(s) at the right (9) becomes 0, thus we get 0.79 as the answer.
In short: 0.789 rounded to the nearest hundredth is 0.79.
But if you were rounding to the tenth
Step 1: Locate and underline the tenth place (7) and look to the right (8):
0.789
Step 2: In this case, the digit to the right (8) is 5 or above. So, we add 1 to the tenth place (7). The digit(s) at the right (8) becomes 0, thus we get 0.8 as the answer.
In short: 0.789 rounded to the nearest tenth is 0.8.