The correct answer is 58.

Solution:

Considering the given number pattern.

Here, the numbers are decreasing.
So, to find the missing number, we first find the rule.

Note that:
76 - 6 = 70
70 - 6 = 64
64 - 6 = 58
58 - 6 = 52

So, the rule is "subtract 6".

Then, the missing number is 58.