Please help I will give brainlist

Answer:
if you are adding two negative numbers, the number is greater
if you are taking a positive number and adding a negative number to it you subtract
so like the answer to number three, -51 + -9 your answer is negative 60, number four your answer is 21, number seven your answer is 43, number 8 your answer is -34 number 11 your answer is 6 number 12 your answer is 12 hopefully you catch on
Answer:
Step-by-step explanation:
1. -51 + (-9) = -60
2. 27 + (-6) = 21
3. 1 + (-30) = -29
4. 15 + (-25) = -10
5. 50 + (-7) = 43
6. -19 + (-15) = -34
7. (-23) + 9 = -14
8. -19 + (-21) = -2
9. -17 + 11 = -6
10. 20 + (-8) = 12
11. (-15) + (-7) = -22
12. 12 + (-14) = -2