800
To the nearest hundred thousand, 100000
10.00
It is: 500
1000
To one significant number, 800
0
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.
0
It is 300 when rounded to the nearest hundred
916 rounded to the nearest hundred is 900
To the nearest ten, 790 To the nearest hundred, 800
0