6
Start at the number 1.
You should now be able to find how to fill in the missing value.
5
It looks like the answer is
Explanation
4
Not a full answer (I don't think so at least), but maybe something someone can build off of:
3
First, the answer to the actual question in the test:
This makes step 2:
Step 3:
Final output:
2
I have maybe an answer, let me check.
(3+7)/2 = 5 give
Taking another example : 8/4+3-1 = 4
A last one to confirm : 5+0/1+(5-3)=7 become
And it didn't work.
I will post my answer anyway in case it can help someone later.
1
Perhaps you are looking for
We note that
Then
So the final answer is
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