What is the Abbreviation for elementary?

There isn't a single, universally accepted abbreviation for "elementary." The best abbreviation depends on the context. You might see things like:

* Elem.: This is probably the most common abbreviation.

* Elem: (without the period) is also frequently used.

* El: A shorter, less common option.

The best choice will depend on the situation. In a formal setting, "Elem." is generally preferred.