I believe that rounding down to the proceding thousand would be to round down.
Take 8765 for example. To round that down to the proceding thousand would mean you would make that into 8000.
That's how I would do it.
Math Rules!
350
It is 430.
28200
Round it down to 12,900,000.
To round 125,458 to the nearest hundred thousand, you look at the hundred thousand place, which is 1 in this case. The digit to the right, in the ten thousand place, is 2. Since 2 is less than 5, you round down, resulting in 100,000 as the nearest hundred thousand.
350
It is 430.
8,000
28200
Nearest thousand, round down because 438 is less than 500. Answer - 6,172,000Nearest ten thousand, round down because 2,438 is less than 5,000. Answer - 6,170,000
You round down to 500,000.
You round it down to 3,120,000.
You would round it down to 49000.
459 to the nearest ten thousand? (not thousandth?) 459 would round down to 0..
The 4 in the ten thousand position causes a round down to give 72400000 as the answer.
Round it down to 12,900,000.
As there is a zero in the hundreds position, it will round down to 5000.