What Is 1,270 rounded to the nearest hundred?

It would be 1,300. When rounding, you'd need to look at the number to the right of the place you're rounding to. In this case, you're rounding to the hundreds place (the 2), so you look at the number to the right (7). To know if you round up or down use this:

Round down = 0-4

Round up = 5-9