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It depends on what numbers you are using so thats the first question.

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Q: When do you know when to put a negative or positive when adding numbers?
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How do you know if its a negative or a positive number?

negative numbers are numbers less than zero. negative numbers have a negative sign in front of them EX: -9 negative nine positive numbers are anything more than zero. EX: 9 positive nine


Why does the product of 4 negative numbers equal a positive?

If you know that the product of 2 negative numbers is positive, then the product of 4 negative numbers has to be positive. The product of the first two negative numbers is positive and the next two negative numbers is positive. Multiplying the product of the first two numbers (positive number) and the product of the last two numbers (also positive), is a positive number times a positive number which is positive. Let a, b, c and d be negative numbers: (a*b*c*d) = (a*b)*(c*d) (-ve*-ve*-ve*-ve)=(-ve*-ve)*(-ve*-ve)= (+ve)*(+ve) = (+ve)


How do you know when the sum of a positive integer will be negative?

The sum of two positive numbers is positive. The sum of two negative numbers is negative. The sum of a positive and negative number will depend on which number has a greater absolute value. 5 + (-4) = 1 5 + (-9) = -4


What combination of signed numbers always leads to a positive number?

If I understand the question correctly, the sum of two positive numbers will *always* yield a positive number. The product of two positive or two negative numbers will always yield a positive number. The division of two positive or two negative numbers will always yield a positive number. There are more examples along this line. I am not sure if this is what you wanted to know.


How do you add and subtract negative decimals?

The same way you'd add any other negative numbers. Adding a negative is the same as subtracting, and subtracting a negative is the same as adding. (-2) + (-2) = (-4) (-2) - (-2) = 0 you are wrong if you add or subtract two negitives its always a positive dont you know your math. And the second problem you have is wrong to because when you subtract two negitives you change the sign of the secong number to positive and you change the subtraction sign to a addition sign.

Related questions

How do you know if a number will be positive or negative when adding?

Numbers are positive unless they have a minus sign (-) in front of them, in which case they are negative. As for the sum of positive and negative numbers, just add them up and find out. Add the positive, subtract the negative. It's very logical.


How do you know if its a negative or a positive number?

negative numbers are numbers less than zero. negative numbers have a negative sign in front of them EX: -9 negative nine positive numbers are anything more than zero. EX: 9 positive nine


What is the quotient of positive and negative integers?

The quotient is what you get when you divide two numbers. If both numbers are positive, the quotient will be positive. If both numbers are negative, the quotient will be positive. If one number is positive and one number is negative, their quotient will be negative.


Why does the product of 4 negative numbers equal a positive?

If you know that the product of 2 negative numbers is positive, then the product of 4 negative numbers has to be positive. The product of the first two negative numbers is positive and the next two negative numbers is positive. Multiplying the product of the first two numbers (positive number) and the product of the last two numbers (also positive), is a positive number times a positive number which is positive. Let a, b, c and d be negative numbers: (a*b*c*d) = (a*b)*(c*d) (-ve*-ve*-ve*-ve)=(-ve*-ve)*(-ve*-ve)= (+ve)*(+ve) = (+ve)


How do you know when the sum of a positive integer will be negative?

The sum of two positive numbers is positive. The sum of two negative numbers is negative. The sum of a positive and negative number will depend on which number has a greater absolute value. 5 + (-4) = 1 5 + (-9) = -4


When multiplying and dividing rational numbers how do you know if the answer will be a negative?

It the two rational numbers have different signs, then the answer will be negative, otherwise it will be positive.


Why is 0 on the number line?

So the positive and negative numbers know where to start.


When multiplying and dividing rational numbers how do you know if you're into me positive negative?

It the signs of the two numbers that you are multiplying or dividing is the same, then the answer is positive, otherwise the answer is negative. Remember though, that division by 0 is not defined.


How do positive and negative numbers helpful in describing a situation?

i don't know.. you ? alam mo ..?


How do you subtract a negative and a positive?

It depends on the way you want to perform the subtraction. Reading the content of the question, I'll assume you want to subtract a positive number from a negative number.Actually, this can be done quite easily. Remember when you were taught that adding two negative numbers results in an even lesser negative number? You can do the same with a negative and a positive.For example: -5 + -5 = -10, when adding two negativenumbers.But with -5 - 5, you can simply count to the left: -5, -6, -7, -8, -9, -10.Or, you can convert this to a negative number and add the numbers together, arriving at the same result.Hope this helps, let me know if you have any more issues regarding negative numbers.


What combination of signed numbers always leads to a positive number?

If I understand the question correctly, the sum of two positive numbers will *always* yield a positive number. The product of two positive or two negative numbers will always yield a positive number. The division of two positive or two negative numbers will always yield a positive number. There are more examples along this line. I am not sure if this is what you wanted to know.


What is a negative plus a negative minus a positive?

0, Because you don't know how negative or how positive! 0, Because you don't know how negative or how positive!