800
800
Oh, what a happy little question! To round .798, we look at the next decimal place, which is 9. Since 9 is greater than 5, we round up the 8 to 1, making it .80. Just a gentle touch of rounding to bring a smile to your numbers.
5
798 to the nearest tens place = 800
800
800
800
6 174 798 604 is your answer.
400
800
-798 is the ratio of -798 and 1. That's rational.