Posted by **Dean** on Monday, September 14, 2009 at 7:55pm.

I have two questions for math.

How do I add/subtract an integer

Please give me full notes, or webpage please.

Also, my teacher said 10-20E (Problems in book we have to do)

Is that evens? because the odd answers are in the back of the text book

Thanks,

- 7th grade Math -
**Ms. Sue**, Monday, September 14, 2009 at 8:01pm
These sites have great explanations of adding and subtracting integers.

http://www.mathgoodies.com/lessons/vol5/addition.html

http://www.mathgoodies.com/lessons/vol5/subtraction.html

The assignments probably are only for the even numbered problems because of the "E" after the numbers.

Of course, it wouldn't hurt to do all of the problems -- especially since you can check your answers to the odd-numbered problems.

- 7th grade Math -
**Dean**, Monday, September 14, 2009 at 8:07pm
Thanks Ms. Sue you help with everything!!!

- 7th grade Math -
**Ms. Sue**, Monday, September 14, 2009 at 8:07pm
You're welcome, Dean.

- 7th grade Math -
**Anonymous**, Thursday, September 24, 2009 at 3:41pm
6.7 x 10 to the 4th power

7.6 x 10 to the 4th power

8.9 x 10 to the 3rd power

9.8 x 10 to the -3rd power

put in order from least to greatest

- 7th grade Math -
**Delicia**, Monday, January 11, 2010 at 10:38pm
how do you find the interest and balance of the account.

($278) at 8% for 9 months?

- 7th grade Math -
**A+ Student**, Saturday, January 24, 2015 at 9:46pm
Change percent to a decimal

=0.08x278x9

=200.16

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