3 499
Whole numbers that can be rounded to 3000 must fall within the range of 2950 to 3049. This includes all integers from 2950 to 3049, which gives us a total of 100 whole numbers (3049 - 2950 + 1 = 100).
999 of them.
Infinitely many.
3499
45 to 54
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.
Whole numbers that can be rounded to 3000 must fall within the range of 2950 to 3049. This includes all integers from 2950 to 3049, which gives us a total of 100 whole numbers (3049 - 2950 + 1 = 100).
2645 rounded to the nearest thousand is 3000.
999 of them.
Ten integers can be rounded off to 280. An infinite number of numbers can be rounded off to 280.
3000
Infinitely many.
Infinitely many.
3499
35 to 44
245 to 254
45 to 54