We had our first math test not long ago. It included adding, subtracting, dividing and multiplying negative and positive numbers. Its pretty simple actually. If you are multiplying or dividing and both of them are negative the outcome is positive. If there is only one negative number is in there it will always be a negative number. The rules are different in adding and subtracting it mostly depends on which number is bigger than the other, But there is a really helpful rule called leave change change if it subtracting then you leave the first number change the subtraction to adding and change the last number to its opposite. It sounds hard but its really not. It will really help you out!