Posted by **grandma** on Wednesday, September 21, 2011 at 10:53pm.

when this 3-digit number is rounded to the nearest ten, the sum of its digits is 16 .the hundreds digit of this number is 8 and the ones digit is 5 . what is the number?

- 3rd grade -
**cody**, Wednesday, September 21, 2011 at 10:56pm
if the one is 5 and the hundreds is 8, then it is 5._8, and 5 + 8 + _ = 16, so you subtract 5+8 from 16 and get 3, so the number is 5.38

- 3rd grade -
**Ms. Sue**, Wednesday, September 21, 2011 at 10:59pm
8 __ 5

Rounded to the nearest ten, it's 8 __ 0

8 + 0 + x = 16

x must be 8.

880 = 8 + 8 + 0 = 16

- 3rd grade -
**Ms. Sue**, Wednesday, September 21, 2011 at 11:01pm
Cody -- I don't think you read the problem correctly.

Did you forget to round the number to the nearest 10?

- 3rd grade -
**cody**, Wednesday, September 21, 2011 at 11:05pm
-_- fail. i just failed a 3rd grade math problem and i live at the illinois math and science academy. that is just sad

- 3rd grade -
**Ms. Sue**, Wednesday, September 21, 2011 at 11:08pm
We all make mistakes, Cody. One of the most intelligent math and physics teachers I know recently told me that he can't add a column of numbers.

- 3rd grade -
**ximena**, Thursday, September 22, 2011 at 8:08pm
Use the digits. 3,7,1,5 to write a number that rounds to each of the following

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