Answer:
-113
Step-by-step explanation:
Let's use the Decomposition Method.
1) Use this rule: [tex]-a-b=-(a+b)[/tex].
[tex]-(83+30)[/tex]
2) Use the decomposition method.
[tex]83 = 80 + 3[/tex]
[tex]30 = 30 + 0[/tex]
_____________________
[tex]110 + 3 = 113[/tex]
3) After simplification, we have:
[tex]-(83+30)=-113[/tex]
4) Therefore, [tex]-83-30=-113[/tex].
[tex]-113[/tex]