User is able to do calculations in their head like a calculator.

Pros:
-user will be amazing at mathematics
-user will be able to shop on a budget quickly
-user will be an amazing quiz master
-user will mostly likely be successful in life

Cons:
-user will struggle at comprehension
-user will be uncreative most likely
-user will annoy people when getting A's a lot

Weakness: multitasking
User must to one thing at once to operate their quirk properly.

Not really for hero work