negative 15 plus positive three = negative twelve
-15 + +3 = -12
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-15 + 37 = 22
The sum of 15 and -52 is -37.
First add all the negative numbers. It -4+-3+-8 is -15. Now 3+9=12So we need to as 12 to -15 which is the same as 12-15 or -3.When you add negative numbers you can just add them like positives then place the negative sign in front of you answer. Adding a positive and a negative is like subtracting the negative one from the positive one. That is what I did.
Negative 4 minus positive 15 = negative 19
-15