lets see....
251,252,253,254,249,248,247,246,245,
and many others
999 of them.
Infinitely many.
45 to 54
3 499
93
245 to 254
250 and 349
Ten integers can be rounded off to 280. An infinite number of numbers can be rounded off to 280.
999 of them.
Infinitely many.
Infinitely many.
35 to 44
3 499
45 to 54
93
Depends. When you round off something, it has to be to a value. 250 rounded off to its nearest tens place would be 250, rounded to its nearest hundreds place would be 300.
99 of them.