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Because adding a negative is the same as subtracting a positive. In other words, minus a plus is he same as plus a minus. For example

5+ (-3) = 5-3 = +2

5 -(+3) = 5-3 = +2

Remember

minus a plus = = minus

plus a minus = minus

plus a plus = plus

minus a minus = plus

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โˆ™ 2016-05-03 16:48:06
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โˆ™ 2016-05-03 10:12:52

Because by definition, adding a negative integer is the same as subtracting its positive counterpart.

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Q: Why do you use subtraction when you add a positive integer and a negative integer?
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Related questions

What is -2 plus -1?

-3


How can you predict the sign of the sum of a positive and a negative integer before you add the numbers?

If the absolute value of the positive integer is greater than the absolute value of the negative integer, then the sum of the two will be positive.If the absolute value of the positive integer is less than the absolute value of the negative integer, then the sum will be negative.If the absolute values of the two integers are the same then the sum will be zero, which has neither a negative nor a positive sign.


If you add integers that are negative then your answer will be positive?

No. Adding negative integers will result in an integer that is more negative.


Subtraction of vectors?

In subtraction of vectors, simply add a negative vector. A negative vector is the same vector as its positive counterpart, only it is pointing in the opposite direction.


How do you solve an equation involving subtraction of positive and negative numbers?

well it is easy to the second integer change the sigh to the opposite one and also change the subtraction sign to a adding sign and add ex 3- +5= 3+-5=-2


The sum of two negative integers is a positive integer?

No, the sum of two negative integers is not a positive integer. For example, if you add -5 and -6 together the sum would be -11.


How is a negative integer less then any positive integer?

Because positive numbers are to the right of negative numbers on the number line. If you have two numbers, one the negative of the other, and you add the positive to the negative, you get zero. If you add the positive to zero, you get a positive number. So positive numbers are an increase from zero, which is an increase from negative numbers. A negative number may have a greater absolute value than a positive number, but it will always be less than a positive number.


What are the rules for adding and subtracting integers?

when you add two positive integers the answer is always positive when you add two negative integers the answer is positive when you add one negative and on positive integer, the answer is negative subtracting two negative numbers gets a negative answer subtracting two positive numbers- the answer depends subtracting a negative and positive number- the answer depends, the positive number would have to be bigger than the negative to achieve a negative number, and if the positive number is less, than the answer is still negative


What happens if you add negative number by positive number?

If you add a negative number to a positive number, then it's pretty much subtraction. For instance, -5 + 7 is the same as 7-5.


Does the sum of a negative integer and a positive integer always zero?

No,because if you add -5 and 10 you get 5 which is not equal to zero. They way you would get 0 as an answer is if you add a negative integer and it's opposite like -5 and 5. Then your answer would be zero.


When you add a negative integer with a negative integer do you get a positive integer?

Negative. Sorry. No you do not. Adding a negative to a negative gives you a number that is even more negative. Picture a number line. A negative number is to the left of zero, and adding a negative number moves further left. ■


How would you add together a negative integer and a positive integer?

Think of a number line with 0 in the middle. A negative integer (-3) makes you go back 3 on the number line. Now if you add a positive integer (2) you go forward two integers, landing on -1. If you are adding two negatives, the negatives cancel out and you get a positive number. In math, two wrongs make a right!


What is always true about the sum of a negative and a positive integer?

nothing here is an example -4+5=1 4+(-5)=-1unless you add negative to negative or positive to positive then you'd keep the sign


What is the rule in adding positive integers?

Adding IntegersTo add integers, one must consider the following two rules to be a successful.If you want to think of it on the number line you start from 0 and when you add a positive number you go that much to the right, and when you add a negative number you go that much to the left. When adding two positive integers, just add like normal. When adding one positive integer, and one negative integer, it is like subtracting a positive number from a positive number. When adding two negative integers, it is like subtracting a positive number from a negative number.


Why do you subtract negative numbers if it is really just adding?

you have to do keep change change keep the first number change the subtraction sign to a add and the negative to a positive


What if you begin with one digit integer multiply by 3 add 8 by 2 and subtract by 6?

The answer is a negative or positive integer with one or two digits.


What is the sum of 7 negative integer?

Add the positive values of the 7 integers and put a minus sign before the answer.


What is a signed counting number?

It means that you add a sign (plus or minus).


What type of integer do you get when you add two negative integers?

You will get a negative integer.


What is rule of addition of integers?

Rule: The sum of two negative integers is a negative integer.Rule: The sum of two positive integers is a positive integer.Procedure: To add a positive and a negative integer (or a negative and a positive integer), follow these steps:1. Find the absolute value of each integer.2. Subtract the smaller number from the larger number you get in Step 1.3. The result from Step 2 takes the sign of the integer with the greater absolute value.


How do you add a negative by a negative?

you make it a positive because negative add negative becomes a positive


Why is it when you add negative and negative it equals a positive and negative and positive equals a negative?

Use a number line to image this. Subtraction means "switch directions". ..._-2_-1_0_+1_+2_... Adding a negative is the same as subtracting. You switch directions on the number line. -1 + -1 = -2 is the same as -1 - 1 = -2. Adding negative numbers only makes the answer more negative. If you add a positive close to zero and a negative far from zero you get a negative. If you add a positive far from zero to a negative close to zero you get a positive. Your question seems to indicate confusion with multiplication rather than addition. When you multiply 2 negatives, you switch directions twice and end up going to the right (Positive) on the number line. remember keep change change.


When you add a positive with a negative does it come out positive or negative?

Its negative


When you add two positive integers their sum is always a positive integers when you subtract two positive integers is their difference always a positive integer?

diffrence will always be positive except when it is zero but is you speak of substraction operation it can be positive negative or zero


What is the sign for multiplication and addition?

If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.If you multiply two numbers, the result will be positive, if both factors are positive, or if both are negative. Multiplying a positive number by a negative number, or a negative number by a positive number, results in a negative result.For addition, if you add two positive numbers, the result is positive. If you add two negative numbers, the result is negative. If you add a positive and a negative number, the result depends on which of the numbers has the greater absolute value. For example, if the positive number has the greater absolute value (distance from zero), the result will be positive.