Answer:
1. Add numbers and sign negative.
[tex]( - 2) + ( - 1) = - 3[/tex]
2. Subtract numbers and the sign of the large number .
**yes
[tex]2 + ( - 1) = 2 - 1 = 1[/tex]
[tex]1 + ( - 2) = 1 - 2 = - 1[/tex]
3. Negative in the negative is positive, the addition of numbers and the sign is positive .
[tex]1 - ( - 2) = 1 + 2 = 3[/tex]
4. A negative (a) and a negative (b) in a negative is a positive, and we subtract the numbers and the sign of the large number.
[tex]( - 1) - ( - 2) = - 1 + 2 = 1 \\ \\ ( - 2) - ( - 1) = - 2 + 1 = - 1[/tex]
I hope I helped you^_^