What is a number next to a minus sign?

addend Depends on the context it's used in. It can mean addition, positive, approaching from the right, etc. People would be able to help you more if you gave us an example or described it in...

A plus number.

No it is not because 8-5 does not mean that the 5 is a negative sign but my weird mom thinks it is.

a negative divided or multiplied by a negative is a positive a negative and a positive multiplied or divided by each other is a negative a negative divided or multiplied by a negative is a...

There are two different ways. You subtract a whole number from it: Example: (-1) - 4 = (-5). Or, you can add another negative number: Example: (-1) + (-4) = (-5) No, actually add the absolute value....