4001
The least number that rounds to 4000 to 1 sig fig is 3500
The least number that rounds to 23,000 when rounding to the nearest THOUSAND would be 22,500. If rounding to the nearest hundred, the least number would be 22, 950. If rounding to the nearest 10, the least number would be 22,995.
95
The lowest number that rounds to 700 to the nearest hundred would be 650.
4000
The least number that rounds to 4000 to 1 sig fig is 3500
The answer here depends on what digit place you are rounding to. In the ones digit, the largest whole number that rounds to 4000 is 4004. If you're rounding to the thousands digit, the largest whole number that rounds to 4000 is 4499.
450
349
It is 2.85 that rounds to 2.9 to one decimal place
The least number that rounds to 23,000 when rounding to the nearest THOUSAND would be 22,500. If rounding to the nearest hundred, the least number would be 22, 950. If rounding to the nearest 10, the least number would be 22,995.
75
6500000
5555
8
1000
95