SOLUTION: I've forgotten how to go about adding and subtracted negatives numbers. Can you help me with what rules to follow? Given the following eight problems: +25 - (+10) +25 - (-10)

Algebra ->  Signed-numbers -> SOLUTION: I've forgotten how to go about adding and subtracted negatives numbers. Can you help me with what rules to follow? Given the following eight problems: +25 - (+10) +25 - (-10)      Log On


   

Question 17398: I've forgotten how to go about adding and subtracted negatives numbers. Can you help me with what rules to follow? Given the following eight problems:
+25 - (+10)
+25 - (-10)
+25 + (+10)
+25 + (-10)
-25 - (+10)
-25 - (-10)
-25 + (+10)
-25 + (-10)
Thank You in Advance for your help
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
+25 - (+10) = 25 - 10 = 15
+25 - (-10) = 25 + 10 = 35
+25 + (+10) = 25 + 10 = 35
+25 + (-10) = 25 - 10 = 15
-25 - (+10) = -25 - 10 = -35
-25 - (-10) = -25 + 10 = -15
-25 + (+10) = -25 + 10 = -15
-25 + (-10) = -25 - 10 = -35