In different branches of math. For example. in statistics you nee d to find the standard deviation and your calculated number is an irrational number, you need to round it off.
999 of them.
45 to 54
Infinitely many.
3 499
25549
Ten integers can be rounded off to 280. An infinite number of numbers can be rounded off to 280.
999 of them.
Since numbers equal to or greater than 5 are rounded up, and numbers equal to or less than 4 are rounded down, the largest 4-digit number that can be rounded off to 3000 would be 3004.
u just make the number shorter e.g. 1.7 is rounded off to 2
15 to 24
45 to 54
35 to 44
245 to 254
Infinitely many.
3 499
25549
The numbers from 75 to 84 are rounded off to 80 to the nearest ten