Well, honey, 789.322 rounded to the nearest whole number is simply 789. It's not rocket science, darling. Just lop off the decimal and you're good to go.
800
1000
0
789 is a whole number.
The number 78,909 rounded to the nearest ten thousand would be 79,000. This is taught in math.
0
To the nearest hundred thousand, 100000
To the nearest ten, 790 To the nearest hundred, 800
10.00
It is: 500
789 = 7890 tenths.