Posted by mary on Monday, October 6, 2008 at 5:18pm.
 how would i work out this problem?
5 + 4=

math  Ms. Sue, Monday, October 6, 2008 at 5:21pm
Think of a number line. Start with 5 and then go back 4 more places.
Two negatives added together equal a negative. 
math  Writeacher, Monday, October 6, 2008 at 5:22pm
http://www.dositey.com/addsub/negnum.htm
http://www.eduplace.com/math/mathsteps/6/b/index.html 
math  Kali, Monday, October 6, 2008 at 6:11pm
if you know the rule stay change opposite.
it might just give you a clue.
5+4=
two negatives added together equal a negative.