How we add numbers with different signs

Question

I need to put in words how do we add numbers worn different signs. I need to explain. I'm really not sure how to do this. 

Answer 1

Positive number is always larger.
When you add number with different signs, find the difference and use the sign of a number with the bigger absolute value. I will use Jame's examples

29 +(- 54) = - 25
54 - 29 = 25
|29| < |-54| so the answer will be negative number.

- 17 + 47 = 30
47 - 17 = 30
|47| > |- 17| so the answer is positive.

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By real life's words this problem will be:

You earned $29, it's "+" for your pocket, and you spend/borrow $54, which is "-" for your pocket.

If you spend more than you earn, result is negative.
If you earn more than you spend result is positive.

Answer 2

If two numbers have different signs and you want to add them, all you have to do is subtract them! And don't forget, whichever number is larger will have the same sign as your answer!

 

Example:

 

4 + (-3) = 1

 

(-17) + 47 = 30

 

29 + (-54) = -25