Anumber rounded to the nearest hundred thousand is 400000. the same number rounded to the nearest ten thousand is 350000. what could the number be?

Well, we know the number must be above 350,000 because it was rounded up to 400,000. In order for the number to round down to 350,000 the number would have to be between 350,000-354999. So, the number could be any number in between those two numbers.

For example: The number COULD be 351,000 but, that is not the only possible answer.

make sense?

The amount used= 13.04- 1.9 = 11.14