To one significant number, 800
789.322 rounded to the nearest whole number is 789. When rounding a decimal number to the nearest whole number, you look at the digit immediately to the right of the decimal point. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit to the right of the decimal point is 3, which is less than 5, so the number remains 789 when rounded to the nearest whole number.
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
800
To the nearest ten, 790 To the nearest hundred, 800
10.00
It is: 500
789 = 7890 tenths.