The answer is 790.
The first question we must answer is, "which digit in this number is in the tens column?"
In 789, the digit "8" is in the tens column.
We know this because working from right to left (from the left of the decimal point) it is in the second column ("9" is in the first, "7" in the third). We do not always write a decimal point for a number such as this but if it makes it any easier for you then think of this number as being 789.0.
Now to round this digit we ask, "is the digit to its immediate right higher than or equal to 5?"
If it is then we round up else we round down (i.e. do not change the digit).
In this case, "9" is higher than "5" so we must round up. The number 789 becomes 790 (to the nearest ten). Please note that as we have rounded to the nearest 10, we must make the last digit 0 after rounding.
Oh, dude, you're really making me do math right now? Okay, fine. So, 789 rounded to the nearest 10 is 790. Like, it's pretty simple, just add 1 to the last digit because 9 is closer to 10 than it is to 0. But seriously, math? Can we talk about something more fun like Pizza toppings or something?
800
0
6799 rounded to the nearest 10 = 6800
The number 78,909 rounded to the nearest ten thousand would be 79,000. This is taught in math.
70
800
1000
To one significant number, 800
10.00
0
To the nearest ten, 790 To the nearest hundred, 800
789.322 when rounded off to the nearest number is 789.
0
To the nearest hundred thousand, 100000
8 is already rounded to the nearest 10th. Rounded to the nearest 10 is 10.
149,100,000, rounded to the nearest 10 million = 150,000,000149,100,000, rounded to the nearest 10 million = 150,000,000149,100,000, rounded to the nearest 10 million = 150,000,000149,100,000, rounded to the nearest 10 million = 150,000,000
10 because 8 is to small to have this and 10 is the first ten there is