Okay so in school I am doing this litterly right now. So all u have to do is when it is a different sign you subtract, when it is the same you add. So think of it as, Different/Difference and Same/Sum. when the sign is different u find the difference and when u have the same sign you find the sum. Example 1: -3+8= 5 Use the same sign as the largest number Example 2: 5+(-10)= -5 Hopefully This helped! It is easier then you may think once you get the hang of it! ( You get the hang of it REALLY fast ) :)
The number in brackets is negative.... - The number outside the bracket is positive... + -x+ is - (a negative times a positive is a negative) So you end up with -3-7=? Since they are both negative.... - It stays negative along the negative line -10 is the answer IF it was -3-(-7) (negative times a negative is a positive) Then it would have been -3+7 Which would carry it it back to positive because the + is with the bigger number So -3+7 is 4 Hope this helped
