Question

– 16 x ( – 1) is equal to

(a) – 17

(b) 17

(c) 16

(d) – 16 ​

Answer 1

The answer is 16 because - × - = +

Answer 2

Answer:

c)16

First, mutiply normally and ignore the sign. Now, 16×1 gives 16. Now check the sign. Both are negative. Remember this way:

My friends (+) enemy (-) is my enemy. + and - gives -

My enemy's(-) enemy(-) is my friend (+). two negatives give 1 positive.

This works for multiplication and division of integers.