-- Look at the number 942.
-- Figure out what are the even hundreds on either side of it.
They are 900 and 1,000 .
-- Examine each of those, and decide which one is closer to the number 942.
-- 900 is 42 numbers away from 942.
1,000 is 58 numbers away from 942.
-- 900 is the one that's nearest to 942.
Oh, dude, rounding to the nearest 100 is like, super easy. So, if you wanna round 942 to the nearest 100, you just gotta look at the tens digit, which is 4. Since it's less than 5, you keep the hundreds digit the same and make the tens and ones digits zero, so 942 rounded to the nearest 100 is 900. Easy peasy, lemon squeezy!
1000
2,942,628,241 rounded to the nearest billions place is 3 billion (3,000,000,000).
round 90 to the nearest ten
372 rounded to the nearest hundred is 400
300
1,000
100
100
100
10100
4198 to the nearest 100 = 4200
7675 rounded to the nearest 100 is 7700.