Yes, TTM can stand for Think Through Math. However, it can also mean other things. Much like many other acronyms, there are multiple meanings. TTM can also stand for Trailing Twelve Months and To The Max, according to UrbanDictionary.com.
TTM has many urban as well as business meanings. These meanings can range from Think Through Math to Total Taber Marc, two completely different phrases. When someone uses TTM on social media, they generally mean Talk To Me. Use caution when using acronyms like this, and make sure that the person you are speaking to knows what you mean by them.