Answer:
1. -13
2. 6
3. -26
4. 25
5. - 84
6. -240
7. 100
8. -13
9. 45
10. - 6
Step-by-step explanation:
1. (-8) + ( -5) equal to -8 - 5 = - 13 it will be add then copy the common sign
2. 10 + (-4) equal to 10 - 4 = 6 just multiply the sign if (possitive x negative) the answer is always negative.
3. (-9) - 17 = - 26, just like the number 1 we need to add then copy the sign.
4. 12 - (-13) = 25 this time, we need to multiply negative x negative and the answer would be positive.
5. (7) (-12) = -84, multiply then multiply also the sign
and so on.