Posted by **Dawn** on Monday, October 4, 2010 at 5:27pm.

What is the mean of these numbers?

-1,-4,-5,10

- Math -
**Ms. Sue**, Monday, October 4, 2010 at 5:30pm
Add the four numbers. Then divide by 4. What do you get?

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**Dawn**, Monday, October 4, 2010 at 5:32pm
-7.5

- Math -
**Ms. Sue**, Monday, October 4, 2010 at 5:35pm
When I added the numbers, I got 0.

-10 + 10 = 0

0/4 = 0

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