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Im struggling hard to understand Subtracting Negative Numbers.

Some of it I understand, some I don't.

4-(-8)=12, How is this positive 12?

-2-(-7)=5, How is this positive 5?

,-9-(-4)=-13,How is this negative 13?

I thought when the bigger number is negative you go toward it's direction,so negative 4 back towards the right to -8 which makes it negative -4? Can someone explain this in detail as much as you can? I really need the help

Verified Answer :

wendy40

No, that "bigger number is negative" bit isn't right.

Once you have done what  you have to do inside the brackets (in this case, nothing), you get4--8=12.
Now we all know that two negatives make a positve, so it's 4+8=12, which makes perfect sense.

The other twop examples you gave work exactly the same way: two negatives cancel each other out and make a positive.

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