All right, All you have to remember is a triangle. In 2 angles of the triangle, add a negative sign. In the last side, add a positive. All you have to do now is cover up the 2 sides in your equation, and the uncovered one is your answer. For example, -1 times -1=??? So you cover up the 2 negative sides, and you are left with a positive. However, this only works with multiplication and division. When it comes to subtraction and addition, the answer varies with the number. Hope this helps.
