Integers or signed numbers

When doing integers or signed numbers there are a few important things to remember. When dividing two negative integers, the answer will always be a positive number. When multiplying two negative integers, the answer will always be a positive number as well. Let's look at a few examples: -2(-7)=14, and -56/-7=8. Now, when you have a positive and negative number problem such as 4(-5), the answer will always be a negative. So, the answer is -20.

What if you have 0/(-2), since we are dividing by zero, the answer is 0. Let's switch that problem around, now we have -2/0. Can we do this? No, the answer is undefined. When we subtract integers such as -1-5, we move to the left of the number line. This answer is -6. Now, we have the problem 5-(-3). What do we do? Two subtraction signs next to each other means to add them together. The answer is 8. You may look at the examples I provided above. http://www.mathleague.com/help/integers/integers.htm You may use this website to better help you understand how to do integer problems.