Answer:
You can just place the 7 instead of the 0 since if you add anything to 0 it is the number you added. then 3 and 6 make 9. so it is 97.
Step-by-step explanation:
30
<u>+67</u>
97
The key here is to not worry too much and just follow PEMDAS.
Here we have the expression 
. Following PEMDAS, we complete the expression inside the parentheses first, or 
. This gives us 
or just 
Hope this helps.
Answer:
28
Step-by-step explanation:
sry if I'm wrong although I used calculator
