How do you add, subtract, multiple, and divide with negative numbers?

MULTIPLICATION


negative times negative = positive


negative times positive = negative


positive times negative = negative





DIVISION


negative divided by negative = positive


negative divided by positive = negative


positive divided by negative = negative








ADDITION/SUBTRACTION


negative plus negative = negative


negative plus positive and positive plus negative depends on the larger number e.g.


-4 + 6 or 6 - 4 = 2


-6 + 4 or 4 - 6 = -2How do you add, subtract, multiple, and divide with negative numbers?
Adding:


--%26gt; If it's a negative and negative, it's just like adding positive numbers, except with a negative sign. If it's a negative and a positive, you subtract the negative from the positive. Your answer can be positive or negative.





Multiplying:


--%26gt; Multiply like you are multiplying positive numbers. If the numbers are both negative, it becomes positive. If one is positive and one negative, it becomes negative.





Division:


--%26gt; Divide like you are dividing positive numbers. If the numbers are both negative, it becomes positive. If one is positive and one negative, it becomes negative.How do you add, subtract, multiple, and divide with negative numbers?
negative x negative= positive. if you are multiplying, any two of the same sign (negative negative, positive positive) will always be positive. two different signs (negative postive) will be negative . same with dividing. if you add, you always take the bigger numbers sign for example -3+6 the answer would be positive. you would subtract and the answer would be 3 because, you could switch it and the switched equation would be 6-3 which equals three. if you subtract, you change the subtraction sign to an addition sign and change the number after the sign to the opposite, so -9-7 would be -9+-7.


good luck with that!
- ADDITION -





say your problem is -4 + 10...





the easiest way for me is to subtract 4 from 10 [switch it to 10 + (-4) ]





the answer would be 6





another example: -5 + -8





if you have a number plus a negative number, you subtract the second number from the first (-5 - 8)





and since the first number is negative you keep counting down(or add the two numbers together and slap a negative sign on it)





so your answer would be -13











- SUBTRACTION -





say your problem is -6 - 8 you would do the same as the second example above





another example: -7 - (-5)





the negatives cancel each other out to make a plus sign...





(why i dont know, thats the thing about math you just have to accept the rules and not ask the ';why'; questions';)





so you would then have -7 + 5





and since your first number is negative, and your second is positive, you will count up from 7





so your answer will be -2











- MULTIPLICATION -





say your problem is -5 x -6





the two negatives will cancel and make your answer positive





so just multiply 5 x 6





and your answer is 30





another example: -8 x 10





with one negative, your answer will be negative





so multiply 8 x 10





add a negative sign





and your answer is -80





- DIVISION -





same rules apply from multiplication








- x - = + (negative times negative equals positive)





- x + = - (negative times positive equals negative)





+ x + = + (positive times positive equals positive)








i really hope this helps, sorry if its confusing, i used to be bad at math and i found out it wasn't because i was dumb, it was because the way people explained it to me didn't make sense. i found a teacher that made perfect sense and never got a bad score again, he was the one who taught me not to ask ';why'; so find yourself someone that works well with you if you have trouble :)
I only know how to add and subtract integers. Okay


1. to addif its different signs, add, but keep signs of the second number.


2, To subtract, change the operation to adding and make the sum the opposite sign of the second number.


for example: -5 - -2 becomes +5 + +2 and the answer is +7


Sorry if this info is wrong or inaccurate I am not really that good at math but I should have gotten it right
if you have two numbers,


-a and -b, and a and b represent positive values:





-a + -b = -(a+b) = -a-b


-a - (-b) = -a+b


-a * -b = (-1)a * (-1)b = (1)ab = ab


-a / -b = a/b [-1/-1 = 1]
neg * neg = pos


neg * pos = neg


neg/neg = pos


neg/pos = neg





adding and subtracing is just that... adding and subtracting
calculator?
wow.