64
This is just like regular multiplication but you have to pay attention to the signs.
Here's a table that will help you determine what the sign of the answer should be:
+ x + = +
+ x - = -
- x + = -
- x - = +
-18
4
That depends what the value of w is.
8
A minus plus a minus is not necessarily positive. A minus multiplied by a minus is. The reason being that the minus of a minus is a positive. It's a double negative.
i have no idea.... it just is :P
1
Negative times positive equals negative.
-6 - (-8) = 2
The answer is -8
-1 multiplied by -1 is 1
100 divided by 5 multiplied by 4 minus 79 is 1.